Run · Lots of talk
First 10K / half marathon
Also called first 10k · first half marathon · couch to 10k · c25k to half · first 13.1
Community talk. May contain inaccuracies. Not medical, training, or diet advice. Sharp pain, fainting, or disordered-eating concerns need a clinician.
A 10K is 10 kilometres (6.2 miles); a half marathon is about 21.1 kilometres (13.1 miles). Preparing for either means building running consistency and learning to manage a race. The half is more than twice the distance, so the same training block does not automatically fit both.
World Athletics / AIMS · 202301
What preparing for your first race involves
A beginner race plan can still assume regular running. NHS Couch to 5K builds toward 30-minute runs over nine weeks, not a guaranteed 5K in that time. A longer-race plan has its own starting requirements; finishing a walk-run course does not automatically meet them.
NHS · undatedOne 10K example is eight weeks. Hal Higdon’s Novice plan starts with a 2.5-mile run, uses three running days, two easy cross-training days and two rest days, and peaks at 5.5 miles. Cross-training means another activity, such as cycling or walking. Walking breaks are allowed.
Hal Higdon · Novice 10KThe half-marathon example starts from a stronger base. Higdon’s separate 12-week Novice 1 assumes three-mile runs three to four times weekly. Its table starts the weekend run at four miles and peaks at ten, includes practice 5K/10K races, then tapers—reduces training before race day. These are plan examples, not universal readiness tests.
Hal Higdon · Novice 1 half marathonEasy runs and long runs have different jobs. An easy run uses a manageable effort with conversation possible; a long run is the week’s longer outing. Recovery also belongs in the week. Every session need not feel like a race.
Bupa · 2026Food and drink are part of preparation. Sports-nutrition guidance considers time spent exercising, not just the race name. Gels are portable carbohydrate, not a requirement for every run. Practising intended food and fluids during training helps reveal stomach tolerance; individual needs differ.
AIS · undatedRace day includes more than running. Event guides cover bibs, transport, starting groups, water and toilets. Boston Half groups runners by expected pace and times them from crossing the start. Those arrangements affect the day.
Boston Athletic Association · 2026Read week 1 before choosing the finish-line date. Higdon's Novice 10K begins with runs of 2.5, 2 and 3 miles: 7.5 miles across the first week, plus cross-training. A person who has completed one 30-minute run has not thereby demonstrated that weekly routine. Compare the plan's starting week and available recovery days with actual recent training; the race distance alone does not describe the entry requirement.
Hal Higdon · Novice 10K schedule02
What working toward the race can offer
Practice staying on your feet for longer. Long runs develop endurance for sustained running. Shorter outings and recovery support the week; entering a longer race does not promise a faster finish.
Bupa · 2026A finish can become a meaningful milestone. A HealthUnlocked runner finished a first half eight months after Couch to 5K with no time goal. Covering the distance and the crowd support mattered more than someone else’s pace.
Community · HealthUnlocked03
Good to know before committing
The entry also commits time and money. Check cutoffs and cancellation rules. The 2026 Boston Half lists $110, non-refundable entry and a three-hour official-finisher limit from the last starter. Other events differ.
Boston Athletic Association · 2026Pain is not a training target. Supportive running shoes need not be expensive. NHS guidance advises stopping painful running and seeking assessment for severe or persistent pain. A looming race date is not a reason to push through.
NHS · 202204
From community discussion
A race date motivates, but leaves little room for setbacks. Runners describe mostly easy weeks built around one growing long run, with anxiety about mileage jumps and bone stress. In Higdon’s reviews, Sierra reported run-walk sessions and a 1:08 first 10K, but wished for an extra buffer week. Neither story establishes a safe crash-course timeline.
CommunityAfter Couch to 5K, goals differ. One r/C25K graduate moved to Higdon’s novice 10K; another reply suggested continuing three 30-minute runs while deciding. Moving up in distance is one option, alongside keeping the habit or working on pace.
Community · Reddit r/C25K · 2026Repeating weeks can help the calendar fit. A Nike Run Club runner repeated 10K-plan weeks to align with the race and enjoyed guided runs. They had covered 10K three times by race day; a reply expected their first full distance at the event.
Community · Reddit r/nikerunclubThe crowd can pull your pace away from your plan. First-10K commenters reported starting faster than intended despite planning otherwise. Replies favored familiar socks and food; fuel advice ranged from none to gels, with one reply distinguishing an hour-long effort from two hours. That disagreement is not a personal fueling rule.
Community · Reddit r/BeginnersRunningLongest-run confidence is personal. One first-half thread debated ten-mile peaks versus 11–13.5 miles for reassurance. The original poster later reported a roughly 2:27 finish with a hard final 5K. Completing the distance in training reassured some runners; one longest run did not settle everyone’s concern.
Community · Reddit r/beginnerrunningFamily schedules shape the training. A full-time working parent with four children could fit only one weekly long run. A dad replying reported a roughly 1:48 half on three to four runs weekly, but felt undertrained during recovery. Finishing well and recovering easily were different experiences.
Community · Reddit r/beginnerrunningCrowds are a benefit for some runners. The HealthUnlocked finisher loved strangers cheering their name and offering snacks and water. Another participant disliked events. Enjoying running does not require enjoying races.
Community · HealthUnlockedAnother race can motivate—or burn you out. In a post-race discussion, one runner missed the structure after a first half; another canceled a subsequent half after burnout. Replies described shorter races or running for enjoyment instead of automatically moving to a marathon.
Community · Reddit r/runninglifestyleReferences for this topic
Sources and context
Looking for guidance on half marathon pacing ↗
- id
- fit-wave-first-half-pacing — Looking for guidance on half marathon pacing
- role
- Community discussion
- accessed On
- 2026-09-23
- locator
- Post and selected visible replies returned by web search.
- scope
- After completing a long plan, a first-half runner still asks how training efforts translate into race-day pacing; distance completion and pace selection are separate questions.
- limitations
- Selected public, self-selected reports and opinions; identities, outcomes and explanations are unverified. Not a representative sample, consensus, prevalence estimate, treatment recommendation or training prescription.
How to assess my first half marathon ↗
- id
- fit-wave-first-half-log — How to assess my first half marathon
- role
- Community discussion
- accessed On
- 2026-09-23
- locator
- Post and selected visible replies returned by web search.
- scope
- A first-half report mentions group pacing, slowing for water stations and food preferences; practical logistics matter alongside mileage.
- limitations
- Selected public, self-selected reports and opinions; identities, outcomes and explanations are unverified. Not a representative sample, consensus, prevalence estimate, treatment recommendation or training prescription. Reported food amounts, pace targets and training schedules are not offered as general instructions.
Novice 10K Training Program ↗
- id
- fit-guide-first-higdon-10k — Novice 10K Training Program
- platform
- Hal Higdon
- role
- Official context
- accessed On
- 2026-09-24
- locator
- At a glance, Rest, Running workouts, Long Runs, and the eight-week mile table
- scope
- Eight weeks, three runs, the Sunday build from 3 to 5.5 miles, conversational pace, walking breaks, and rest before and after the weekend
- limitations
- One novice schedule. It does not set a time goal, a fueling dose, or a rule for runners who cannot yet run 2.5 miles.
- slugs
- first-10k-half
- long-run
Novice 1 Half Marathon Training Program ↗
- id
- fit-guide-easy-higdon-half-pace — Novice 1 Half Marathon Training Program
- platform
- Hal Higdon
- role
- Official context
- accessed On
- 2026-09-24
- locator
- Pace paragraph in Hal on his Novice 1 Program
- scope
- Conversational pace for the regular workouts, with a stated heart-rate note of about 65 to 75 percent of maximum pulse for people using a monitor
- limitations
- One coach's note for his half-marathon plan. It is not a lab zone and not the Norwegian scale.
- slugs
- easy-miles
- first-10k-half
- long-run
The Measurement of Road Race Courses — revised edition 2023 ↗
- id
- fit46-first-10k-half-distances — The Measurement of Road Race Courses — revised edition 2023
- slugs
- first-10k-half
- role
- Official context
- platform
- World Athletics / AIMS
- locator
- Printed pages 8–9: Technical Rule 55 and Competition Rule 32
- scope
- 10 km and 21.0975 km standard road-race distances; imperial values are rounded unit conversions.
- limitations
- Course-measurement manual, not a training or readiness standard. Only its distance definitions are used.
- accessed On
- 2026-09-29
- published Or Updated
- 2023
Couch to 5K running plan ↗
- id
- fit-guide-c25k-plan — Couch to 5K running plan
- platform
- NHS
- role
- Official context
- accessed On
- 2026-09-24
- locator
- Opening plan summary, warm-up and cool-down, Week 1, Week 5 runs 1 to 3, Weeks 6 to 9, and the parkrun note
- scope
- Nine weeks, three runs, rest days, five-minute walk bookends, the week-by-week run times through a 30-minute run, and permission to repeat a week
- limitations
- Does not measure how far a 30-minute run goes, and it does not prove a health result. The page says to stop if something does not feel right, which is not a diagnosis.
- slugs
- couch-to-5k
- long-run
Novice 10K Training Program ↗
- id
- fit-rebuild-first-10k-half-higdon-10k — Novice 10K Training Program
- platform
- Hal Higdon
- role
- Official context
- accessed On
- 2026-09-27
- locator
- At a glance, Rest, Running workouts, Long Runs, the eight-week mile table, and the March 16, 2025 review by Sierra
- scope
- Eight weeks, three runs, Sunday building from 3 miles to 5.5, conversational pace, walking breaks, rest around the weekend, and a 6.2-mile race after that peak.
- limitations
- One novice schedule. It does not set a time goal or a fueling dose. The Sierra note is one reviewer's report, not a study. No publication date for the table was printed.
- slugs
- first-10k-half
Novice 1 Half Marathon Training Program ↗
- id
- fit-rebuild-first-10k-half-higdon-half — Novice 1 Half Marathon Training Program
- platform
- Hal Higdon
- role
- Official context
- accessed On
- 2026-09-27
- locator
- Base assumption, Pace, Long Runs, Rest, Racing, and the twelve-week mile table
- scope
- Twelve weeks, a 3-mile base, conversational running between 65 and 75 percent of maximum pulse, Sunday long runs through 10 miles, and a shorter race week before 13.1.
- limitations
- One novice half plan. The prose says the long run grows from 3 to 10 miles while the table starts Sunday at 4. No gel dose and no page date were printed.
- slugs
- first-10k-half
How to use our training plans for long-distance runs ↗
- id
- fit46-first-10k-half-bupa-plans — How to use our training plans for long-distance runs
- slugs
- first-10k-half
- role
- Professional context
- platform
- Bupa UK
- locator
- John Fairhurst; How the training plans work; Easy runs; Long runs; Rest days
- scope
- Definitions of easy and long runs, aerobic endurance purpose, time before intensity, recovery and effort variation.
- limitations
- Professional explainer by a physiotherapist, not a trial of first-race outcomes; commercial healthcare site. No performance or injury-prevention guarantee.
- accessed On
- 2026-09-29
- published Or Updated
- 2026-08-19
Sports gels ↗
- id
- fit46-first-10k-half-ais-fuel — Sports gels
- slugs
- first-10k-half
- role
- Official context
- platform
- Australian Institute of Sport / Australian Sports Commission
- locator
- How and when do I use it? Table 1; Unnecessary expense; Gut discomfort
- scope
- Carbohydrate guidance varies by exercise duration; practice individual gut tolerance and hydration; gels are portable carbohydrate and not required for every session.
- limitations
- General sport nutrition framework; not an individualized fueling or hydration plan. No gram targets imported into this card; no brand endorsement.
- accessed On
- 2026-09-29
Boston Half — Info for Athletes ↗
- id
- fit46-first-10k-half-race-logistics — Boston Half — Info for Athletes
- slugs
- first-10k-half
- role
- Service rules
- platform
- Boston Athletic Association
- locator
- 2026 registration; Bib Numbers; Transportation & Parking; Hydration Stations & Toilets; Timing & Results
- scope
- One concrete event example for logistics, $110 entry, non-refundable entries and three-hour official-finisher limit from the last participant crossing the start.
- limitations
- Rules belong only to the 2026 Boston Half, can change, and do not describe all half marathons. Organizer promotes its own event.
- accessed On
- 2026-09-29
And so the running continues ↗
- id
- fit-rebuild-first-10k-half-healthunlocked-half — And so the running continues
- platform
- HealthUnlocked Couch to 5K
- role
- Community discussion
- accessed On
- 2026-09-27
- locator
- Post by MeatySeafood about the Saucony Shoreditch half, and replies by Cmoi and the reader who does not like events
- scope
- A first half eight months after Couch to 5K, finished with no time goal, plus a correction that the NHS target is 30 minutes rather than a 30-minute 5 km.
- limitations
- One race story. The page used relative times such as seven days ago rather than a printed calendar date. It does not describe Higdon's week table or a fueling dose.
- slugs
- first-10k-half
Knee pain and other running injuries ↗
- id
- fit46-first-10k-half-injury — Knee pain and other running injuries
- slugs
- first-10k-half
- role
- Professional context
- platform
- NHS
- locator
- Opening pain rule; Knee pain; Wear the right shoes; Build up slowly
- scope
- Running pain is a reason to stop and persistent or severe pain needs assessment; increasing running too quickly is cautioned against; beginner running shoes need not be expensive.
- limitations
- Reviewed 25 November 2022; displayed next-review date is past. General public information, not diagnosis, rehabilitation or a universal safe progression percentage.
- accessed On
- 2026-09-29
- published Or Updated
- 2022-11-25
And we're done! ↗
- id
- fit-rebuild-first-10k-half-reddit-next — And we're done!
- platform
- Reddit r/C25K
- role
- Community discussion
- accessed On
- 2026-09-27
- published Or Updated
- 2026-01-12
- locator
- Reply by lissajous naming Hal Higdon's novice 10K, plus replies about goals and three 30-minute runs
- scope
- What runners said they did after a walk-run graduation, including one move onto the novice 10K and one choice to keep short easy runs.
- limitations
- Does not report completing the 10K table. HTML was login-walled; the replies were read from the public RSS.
- slugs
- first-10k-half
My First 10k Race! ↗
- id
- fit46-first-10k-half-nike-story — My First 10k Race!
- slugs
- first-10k-half
- role
- Community discussion
- platform
- Reddit r/nikerunclub
- locator
- lluviata opening post and australazure reply
- scope
- One runner repeated Nike plan weeks to align with race day and enjoyed guided runs; another expected first full 10K distance on race day.
- limitations
- Self-report in a brand-focused community; no controlled comparison, no verified race result. Opened body shows relative dates only; publication date left unknown.
- accessed On
- 2026-09-29
First 10K tomorrow, any beginner tips for pacing, fueling, and handling fatigue? Thanks! ↗
- id
- fit46-first-10k-half-start-nerves — First 10K tomorrow, any beginner tips for pacing, fueling, and handling fatigue? Thanks!
- slugs
- first-10k-half
- role
- Community discussion
- platform
- Reddit r/BeginnersRunning
- locator
- LilJourney; jemstar_; arejay00; speculator100k/ElegantOliver fueling exchange; later replies
- scope
- Firsthand reports of faster-than-intended starts, familiar-kit advice and disagreement over whether 10K runners need fuel, including duration-dependent reply.
- limitations
- Mixture of experience and advice; blanket push-through, universal fueling and pace prescriptions are not endorsed. Search transcript dates September 19 2026; opened HTML supplies only relative dates, so no inferred calendar date stored.
- accessed On
- 2026-09-29
First half marathon advice ↗
- id
- fit46-first-10k-half-longest-run — First half marathon advice
- slugs
- first-10k-half
- role
- Community discussion
- platform
- Reddit r/beginnerrunning
- locator
- Silly_Landscape_3432 post and later edit; Claff93; Prickly_Peaches; doubleyewdee
- scope
- Anxious runner with missed runs reports roughly 2:27 finish with tough final 5K; replies differ between shorter peaks and full-distance confidence.
- limitations
- Firsthand and advice mixed. OP reported knee/hip pain; injury-pushing anecdotes and guarantees rejected. Dates unknown in opened relative display; edit timing unknown.
- accessed On
- 2026-09-29
Training for First Half Marathon! ↗
- id
- fit46-first-10k-half-family-time — Training for First Half Marathon!
- slugs
- first-10k-half
- role
- Community discussion
- platform
- Reddit r/beginnerrunning
- locator
- momoffour_ post; yellowsuzuki and Ok_Equivalent7506 replies
- scope
- Parent with four children and full-time work asks about one long run; a dad reports a roughly 1:48 finish on three to four runs a week but difficult recovery.
- limitations
- Narrow self-selected sample, not proof that their routine suits another runner. Post combines running with 75 Hard, strength, Pilates and hilly walking; no endorsement of that total load. Dates unknown from opened relative display.
- accessed On
- 2026-09-29
First Half Marathon done! Now what? ↗
- id
- fit46-first-10k-half-after-race — First Half Marathon done! Now what?
- slugs
- first-10k-half
- role
- Community discussion
- platform
- Reddit r/runninglifestyle
- locator
- CakeAndCoffee222 post; Mean-Aside1970; ReceptionOk2812; marcianolopez
- scope
- One first-half runner enjoyed training but missed structure afterward; another canceled a later half after burnout; shorter-race and unstructured-running alternatives.
- limitations
- Self-reports, not frequency estimates or recovery instructions. Forum contains shaming of run-walk and unverified age/performance rules; those are excluded. Exact date unknown in opened body.
- accessed On
- 2026-09-29
Keep this topic in view
Preserved original record
Earlier public profile and reader notes are preserved separately from the current article. They may contain superseded wording and are not newly checked material.
Read the full original profile
- slug
- first-10k-half
- name
- First 10K / half marathon
- aliases
- first 10k
- first half marathon
- couch to 10k
- c25k to half
- first 13.1
- family
- run
- heat
- high
- talk
- Lots of talk
- most Discussed
- false
- first Line
- A 10K is a 10-kilometre race; a half marathon is about 21.1 kilometres. First-time preparation involves learning to cover the chosen distance and manage race day.
- why Line
- First-time racers ask about pacing, long-run confidence, water stops and the practical difference between finishing training sessions and running an event.
- feel Words
- first 10k
- first half
- 13.1
- common Picture
- lead
- A race date anchors the training block
- why
- Example plans extend a weekly long run while keeping much of the surrounding running easy. [community]
- watch For
- Jumping mileage too fast. Sharp pain, fainting. Couch to 5K is the neighbor card.
- what People Say
- The job: finish a longer race without inventing a pro plan. [community]
- r/running first-half threads are weekly mileage panic. [community]
- how People Run It
- One long run, mostly easy days. [community]
- amounts People Use
- Weeks of building the long run, not a 10-day crash. [community]
- how People Keep It
- A date on the calendar. [community]
- how It Feels
- The long run is the personality now. [community]
- how Long People Run It
- A block into a date. [community]
- deep Dive
- Couch to 5K addresses the move from walking to sustained running; a long run is the longer training session discussed when preparing for greater distance. [community]
- watch For Long
- Mileage jumps and bone stress. [community]
- related
- couch-to-5k
- long-run
- easy-miles
- polarized-training
- research Pointer
- house Pointers
- play Pointer
- —
- sources
- r/running first 10K/half threads
- disclaimer
- Community talk. May contain inaccuracies. Not medical, training, or diet advice. Sharp pain, fainting, or disordered-eating concerns need a clinician.
- quick Answer History
- field
- definition
- rows
- A first 10K or half marathon is the longer race after a 5K, built with easy miles and a growing long run.
- field
- communityPicture
- rows
- First-half threads are weekly mileage panic, a calendar date and not a three-week crash. Couch to 5K remains the on-ramp card.
- field
- commonPicture
- rows
- lead
- The long run grows
- why
- The new object. [community]
- lead
- Easy still wins the week
- why
- Polarized neighbor. [community]
- lead
- Not a 5K anymore
- why
- Different day. [community]
- field
- firstLine
- rows
- A first 10K or half is the next race after a 5K — more easy miles, one long run that grows, not a crash three-week plan.
- field
- whyLine
- rows
- A first 10K or half is the next race after a 5K — more easy miles, one long run that grows, not a crash three-week plan.
- field
- deepDive
- rows
- Couch to 5K is the on-ramp. The long run is the method card. [community]
Read the preserved reader notes
- picture Clarifications
- definition
- A 10K is a 10-kilometre race; a half marathon is about 21.1 kilometres. First-time preparation involves learning to cover the chosen distance and manage race day.
- community Picture
- First-time racers ask about pacing, long-run confidence, water stops and the practical difference between finishing training sessions and running an event.
- additions
- text
- A March 2022 first-half runner had completed a long training plan but still did not know how to choose race-day pace. An October 2021 race report discussed following a group, slowing at water stations and preferring one food format over another. Those accounts show what mileage totals leave out: pacing confidence, aid-station logistics and familiar routines on an unfamiliar day. They are useful questions to understand before an event, not a pace or fueling prescription for another runner.
- sources
- guide
- what
- The moving part is one run that grows while the other runs stay ordinary. On Hal Higdon's pages a 10K is 6.2 miles and a half marathon is 13.1. His novice 10K is eight weeks. His novice half is twelve. Both keep most running conversational and put the longest run beside rest.
- This is not Couch to 5K shifted one box. That NHS plan ends at 30-minute runs. Higdon's novice 10K assumes about 2.5 miles is already possible, and his novice half assumes about 3 miles, three or four times a week. If week 1 is too much, both pages say to use a shorter schedule first.
- He says the days can move for work and family. The race is not promised to feel like the long run. On the half page the longest training run is 10 miles, and the race is 13.1 after a shorter final week.
- how
- Put the race on a date and count back through the printed weeks. The novice 10K runs Tuesday, Thursday, and Sunday, with easy cross-training Wednesday and Saturday and rest Monday and Friday. Sunday goes 3, 3.5, 4, 4, 4.5, 5, then 5.5 miles. Race week rests Saturday and races Sunday. Pace stays conversational. Walking breaks are written in. Cross-training stays easy.
- Novice half marathon 1 has four runs plus cross-training, with Monday and Friday off around the weekend. Sunday on the table is 4 miles in weeks 1 and 2, then 5, 5, 6, a 5K, 7, 8, a 10K, 9, and 10 miles, then the half. The paragraph above says the long run builds from 3 to 10 miles. The table starts at 4. Use the table's row for the week.
- For a heart-rate monitor, he puts conversational running at about 65 to 75 percent of maximum pulse. Rest before the long run and after it. Walk when tired. He slots a 5K and a 10K into the twelve weeks so the start is not new on race day. If those races are missing, change the week. Come close to the distance. The course can be approximate. Carry water on a warm or long day. These pages print no gel dose. The next day is rest or easy cross-training, not intervals.
- understand
- Higdon calls the long run the key to the half because that distance grows while midweek runs stay narrower. On the 10K page the instruction is to cover the distance slowly. Jumping from a 30-minute Couch to 5K finish into the half's first week skips the base his half page asks for.
- The race is longer than the longest training run on both plans: 6.2 miles after 5.5, and 13.1 after 10. That gap is printed. It is not a reason to add miles in race week. Both tables get shorter, then race. Use the same walk break as in training. A fast first mile spends what the long runs were saving.
- These pages do not state one safe mileage jump for every runner. The written increases are the half-mile and one-mile steps in the tables. Chest pain, fainting, sharp pain, or eating that has become rigid or punishing is the point to stop and see a clinician. The notes below are first-race reports, not new distances.
- sources
- summary Sources
End of First 10K / half marathon