Train for the time you're chasing.

An AI coach builds your plan from today to race day, fits it around your real week, and re-plans when life happens, without ever breaking the rules that keep you healthy.

In beta. Launching January 1, 2027iPhone and Apple Watch

RaceTrain
3:19:59Marathon goal
Patient start · even middle · free finishHalfway 1:40:44
Make your pace band

Splits use RaceTrain's race-day pacing rules: start slower than goal, settle, then finish strong.

1

Name your race.

About 30 seconds

Type the race and the year. RaceTrain finds the official date and course, then builds what that course needs into your plan: downhill work for a net-downhill race, altitude notes for a high one.

Every distance from a first 5K to an Ironman, with Boston-qualifying standards set by your age on Boston race day.

5K10KHalfMarathonSprint triOlympic70.3Ironman
2

Fit it to your real week.

Every week, automatically

Work trips, kids' games, a 6 a.m. meeting. Tell RaceTrain the days you have and it re-flows the week: the long run moves, hard days stay apart, and a rest day always survives.

Example week, week 9 of a marathon build. Tap a week to see it re-plan.

3

Talk to your coach.

Any time, by text or voice

Tell it what happened: a tight calf, a bad night's sleep, a run that felt easy. The coach answers in plain language and proposes changes.

Nothing changes until you tap Apply, and every change runs through the same safety rules as the plan itself. The AI suggests. The rules decide.

Example conversation. Try the buttons.

Golf all day Saturday. Can we move the long run to Sunday? Also my left calf has been tight since Tuesday.

Got it. Long run moves to Sunday, and with the calf we'll make it easier: shorter and slower, no pushing through tightness. If it still changes how you move in a few days, see a physio.

Move the 14-mile long run from Saturday to Sunday

Make Sunday's long run easier for the calf

4

The rules the AI can't break.

Built into the plan engine, not left to willpower
2

Hard days a week, at most. Never back to back.

A hard long run counts as one of them. Quality sessions are spaced from your long run, too.

1

Rest day, every week.

No plan, re-plan or coach suggestion can schedule over it.

3rd

Every third week is lighter.

Masters athletes absorb training on a three-week rhythm, so the plan builds for two weeks and backs off on the third.

10%

Most your mileage can grow in a week.

Or four miles, whichever is gentler at your volume. After time off, you re-enter below where you left off.

3:15

Longest a marathon long run gets.

Long runs are capped by time, not miles. Past that, tendons pay and nothing aerobic is gained.

216 automated checks run against plans for every distance before any version ships.

5

Your watch already knows.

Nothing to log by hand

Start today's session from your wrist. RaceTrain's Apple Watch app shows your pace against the plan's target and taps your wrist when you drift out of the zone.

Already on Garmin or Strava? Anything that records to Apple Health ticks the plan off on its own.

Apple WatchGarminStravaApple HealthRaceTrain
6

Race day, rehearsed.

The last weeks matter as much as the first

Pacing, planned

Your pace band, built from your goal and your course: patient early, even through the middle, free over the last miles. Plan A for a great day, Plan B to defend.

Fuel for the work

Every session carries its own fuelling note, plus daily protein and carbohydrate targets and a race-week protocol matched to your distance.

A tip every day

One coaching note matched to that day's session: how to run the intervals, why the easy day is easy, when to trust the taper.

Boston, by the numbers

Standards set by your age on Boston race day, and a target that aims under recent cutoffs, not just the standard.

Get to the start line ready.

RaceTrain is in beta on iPhone and Apple Watch. Join now and train with it before the public launch.

Public launch: January 1, 2027.