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Run Your First Half Marathon

14 weeks · 0 milestones

Complete a half marathon (21.1km) in an organized event. Official chip time as proof.

Milestone map

Milestone map

3 milestones

Build 16km long-run training base

10–12 weeks (4× per week)

Complete a 16km long run as preparation for your first half marathon. Follow a 12-week training plan that builds long runs progressively. 16km is the longest training run most beginner plans include — it gives you the aerobic base to finish 21.1km on race day without bonking.

Proof required

Submit: (1) GPS track showing 16km+ long run completed; (2) note of the training plan you are following.

What gets checked

  • GPS shows 16km minimum in a single run — not split across two outings
  • Pace is easy/conversational — long runs are not race-effort
  • Training plan name or source is mentioned

Common mistakes

  • Skipping long runs during the week and hoping to 'wing' the race distance
  • Running long runs at race pace and arriving at the start line overtrained

Resources

Foundationstart here

Depthgo deeper

What a verifier looks for

  • Check GPS shows 16km+ as single run
  • Verify log shows a training plan in progress — not just one long run

You'll sign in first, then come straight back here.

Complete a race rehearsal run

1 session

Run 18–19km at your target race pace two weeks before the race. This is your longest training run — it rehearses the race-day effort and fueling strategy without accumulating the fatigue of a full race. Take at least 1–2 gels during this run, exactly as you plan to on race day.

Proof required

Submit: (1) GPS track showing 18–19km at target pace; (2) note on nutrition strategy used during the run.

What gets checked

  • GPS shows 18km minimum at a consistent pace matching race goal
  • Nutrition strategy is documented (what, when, how many gels/chews)
  • Run is 2–3 weeks before the race — not the week before (taper required)

Common mistakes

  • Skipping race-day fuelling rehearsal and discovering mid-race that the chosen gel upsets your stomach
  • Running this rehearsal too hard and arriving at the race undertapered

Resources

Foundationstart here

What a verifier looks for

  • Check GPS shows 18+ km at consistent race pace
  • Verify nutrition notes are specific — not just 'took some gels'

You'll sign in first, then come straight back here.

Finish a half marathon with chip time

Race day

Complete a 21.1km half marathon at an officially timed event. Your chip time appears on the official results page. Any official half marathon race counts — major city race, local road race, or virtual-with-GPS-submission if the event provides official results.

Proof required

Submit: (1) official results page screenshot showing your name, event, 21.1km distance, date, and chip time; (2) GPS track of the race.

What gets checked

  • Results page shows the official chip time from the event's timing system
  • Distance on results is 21.1km or 13.1mi — not a 20km or 22km course
  • GPS track confirms the full route was run

Common mistakes

  • Going out at sub-2:00 half pace without the training base — hitting the wall at 16km
  • Recording a solo half and claiming it as a race — chip timing is the proof standard

Resources

Foundationstart here

Depthgo deeper

What a verifier looks for

  • Confirm results page is from the official race timing system
  • Check distance is stated as 21.1km or 13.1mi
  • Verify name on results matches submitter

You'll sign in first, then come straight back here.

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