NextSession
A training plan that rebuilds itself around your week

You set the goal. You do the workout. NextSession takes care of the rest.

Your coach fits the plan to your week, reworks it when life moves, tells you how each workout went and what it means for the next, and puts every session on your calendar and watch.

I'm training for
  1. 01Who
  2. 02The problem
  3. 03The solution
  4. 04The demo
  5. 05Where it goes
NextSessionMon 07:12

Today

I fly out early Tuesday and get back late that night, so I can't run at all on Tuesday. Monday is wide open.
Wedding this weekend. No long run Saturday or Sunday, but Friday is free.
Storms all day Saturday. Sunday looks clear.
The pool is closed Wednesday for a swim meet.
Speed session moves to todayLong run moves to FridayLong ride moves to SundaySwim moves to Thursday, 6am
Done, and sent to your watch
WHAT IT COST THE WEEKToday's easy run is dropped so the day isn't doubled. Thursday's tempo keeps its two days of space.Wednesday's pace run moves to Tuesday, so it isn't the day before the long run. Friday's easy run goes.Sunday's recovery spin goes. Saturday gets an hour on the trainer, so the week keeps its volume.Thursday's run drops to 30 minutes so the day isn't too long. Saturday's bike and run stay as planned.
UndoTalk it through
01Who has the problem

Anyone with a training plan and a life.

  • First endurance eventYour first half, sprint tri or charity endurance event.
  • Runners5K to marathon, a time to chase and a week that won't sit still.
  • CyclistsGran fondos, centuries and gravel, and the hours to find for them.
  • TriathletesThree sports, a pool timetable and a job.
  • Ultra enduranceBig weeks and long days, around work and family.

You picked a half, found a plan and fit it around work and family. Then the week moves: a trip, a late night, a sick kid. The plan doesn't.A charity place in your first marathon: a fixed date, money pledged and eighteen weeks of training you have never done. Then travel, a wedding, a cold, and nobody to ask what to change.A 100-mile ride on the calendar and a structured plan for the trainer and the road. Then weather, daylight and work decide which days you actually ride.Three sports, a pool timetable and a job. A 70.3 plan has more pieces to move than any other, and one missed swim knocks into the bike and the run.

Built for the athlete who:

Wants structure

A real plan with key sessions and targets, not a list of random workouts.

Doesn't want the admin

No rebuilding the week by hand every time a meeting, a trip or a bad night moves it.

Wants every session to count

Every session has a purpose, optimized for results. They just do the workout.

The live demo shows your event's week, on invented data.

02The problem

Traditional training plans assume a perfect week. Life moves it anyway.

  • Sick or injuredA cold, or a calf that doesn't feel right.
  • A long nightKids up all night. The morning workout doesn't happen.
  • A work tripIt came up Thursday. You fly out Monday.
  • Work runs overThe lunch workout is gone, and there's no other slot today.

The workout is gone. Now what?

  • What do you do tomorrow?
  • How do you fit the rest of the week so the miss costs as little as possible?
  • Four workouts, three days: which do you keep, and which do you drop?
And you work it out yourself
  • The researchWhat's the best way to fit what's left into the days you have?
  • Moving workouts aroundAnd fixing whatever they land on.
  • Restructuring the weekSo the hard days still have space around them.
  • Building replacement workoutsShorter, easier or different, then onto your watch.
You end up doing the coaching yourself. Or you skip it, and missed sessions add up.
03The solution

Tell it what changed. It replans the rest of the week.

Private-coach results at bought-plan prices. It does the thinking and the admin, so you just do the workout.

Monday morningWednesday nightThursday forecastMonday emailWork trip: out early Tuesday, back late. No run on Tuesday.A wedding all weekend. No long run Saturday or Sunday.Storms all Saturday. No long ride outside.Pool closed Wednesday. No swim that day.
YouSay what changed, in your own words."I can't run Tuesday. Monday is wide open.""Wedding this weekend, Friday is free.""Storms Saturday, Sunday looks clear.""Pool's closed Wednesday."
NextSession, on its own
  • Finds the best next move for the whole week, not just the nearest open day
  • Keeps the sessions that count and trims the rest
  • Rebuilds the workouts that change
  • Updates your calendar and syncs your watch
That's it.

The workout that happens beats the perfect one you skip.

Consistency drives results. So when life moves your week, NextSession protects the work that matters, and you don't have to think about it.

  • Sick or injuredHead cold, feeling rough.
    • Two easy days, intensity off
    • Intervals pushed to next week
    Back on plan by the weekend
  • A long nightUp all night with the kids.
    • This morning's tempo moved to Thursday
    • Tomorrow stays easy
    Key work kept
  • A work tripAway Tuesday to Thursday.
    • Intervals moved to Monday
    • Thursday's easy run dropped
    Long run kept
  • Work runs overLost my lunch run.
    • Today's easy run let go
    • Tomorrow's intervals stay put
    The week stays on track

The weeks shown are illustrations, not measured results. Staying healthy and available to train is strongly linked to reaching performance goals (Drew, Raysmith and Charlton, British Journal of Sports Medicine, 2017).

And it gets better over time

It learns how your body responds to training, and how you like to be coached.

Chat with your coach wherever you are.

  • The appLive
  • ClaudeLive
  • ChatGPTLive
  • WhatsAppSoon
  • iMessageSoon
04The demo

One change, end to end.

Follow one athlete through one change, from the message to the watch to the review after. Pick your event at the top of the page to see your own week.

  1. 1You say what to change
  2. 2Your coach works out the fix
  3. 3You approve the adjustment
  4. 4Updated everywhere: your calendar and your watch
  5. 5You train, it reviews
Monday, 07:12
The appiMessageSOONWhatsAppSOONClaudeChatGPT
I fly out early Tuesday and get back late that night, so I can't run at all on Tuesday. Monday is wide open.
Wedding this weekend. No long run Saturday or Sunday, but Friday is free.
Storms all day Saturday. Sunday looks clear.
The pool is closed Wednesday for a swim meet.
Keep the speed session, it's the key work of the week: do it today. Today's easy run goes, so the day isn't doubled.
Long run to Friday, cut to two hours. The pace run moves up to Tuesday so it isn't the day before.
Long ride to Sunday. Saturday gets an hour on the trainer so the week keeps its volume, and the recovery spin goes.
Swim to Thursday at 6am. Thursday's run drops to 30 minutes so the day isn't too long. Saturday stays as planned.
This week, reworked
MonSpeed sessionfrom Tue
MonEasy run
TueTravel
WedEasy run
ThuTempo run
FriEasy run
SatLong run
MonRest
TueMarathon-pace runfrom Wed
WedEasy run
ThuEasy run
FriLong run, 2 hfrom Sat
FriEasy run
SatWedding
MonRest
TueIntervals
WedEndurance ride
ThuTempo ride
SatTrainer, 60 minnew
SunLong ride, 4 hfrom Sat
SunRecovery spin
MonSwim
TueBike intervals
WedPool closed
ThuSwim, 6amfrom Wed
ThuRun, 30 minshortened
FriRest
SatBike and run
Key sessions keptNo day doubledWeek load held
Your call
Speed session moves to MondayLong run moves to FridayLong ride moves to SundaySwim moves to Thursday, 6am
Tue→MonSpeed session
Sat→FriLong run, 2 h
Sat→SunLong ride, 4 h
Wed→ThuSwim, 2,400 m
WHAT IT COSTS THE WEEKOne easy run lost. Thursday's tempo still gets two days of space.Friday's easy run goes. The pace run is no longer the day before the long run.Sunday's recovery spin goes. The week keeps its volume.Thursday's run is shorter. Saturday's bike and run is untouched.
ApproveKeep the plan
Approved
Updated everywhere
Your calendar
MonSpeed sessionChanged
TueTravel
WedEasy run
ThuTempo run
FriEasy run
SatLong run
SunRest
MonRest
TuePace runChanged
WedEasy run
ThuEasy run
FriLong run, 2 hChanged
SatWedding
SunWedding
MonRest
TueIntervals
WedEndurance
ThuTempo ride
FriRest
SatTrainer, 60 minChanged
SunLong ride, 4 hChanged
MonSwim
TueBike intervals
WedPool closed
ThuSwim, 6amChanged
FriRest
SatBike and run
SunLong run
Your watch
Speed sessionLong runLong rideSwim3:421:12:052:31:4018:20Rep 3 of 6 · 4:05/kmEasy · 5:20/kmZ2 · 180 W1:50 /100m
On your calendar, read back
Sent to your watch, with its targets
After the workout
Speed sessionMon · 6 x 800 m
Each rep against target pace, dashed line at 4:05/km
6/6reps on target
168avg heart rate, +4
62load, 58 planned
Strong session: every rep within 3 seconds of target. Heart rate climbed on the last two, so I'm holding Thursday back a little.
Next: Thursday's tempo stays at 20 minutes, not 25.
Long runFri · 2 h
Each 20 minutes against target pace, dashed line at 5:20/km
5:22avg pace /km
142avg heart rate, zone 2
118load, 120 planned
Two hours at an easy 5:22 and your heart rate stayed low, even with the wedding run-up. Your legs held up.
Next: Tuesday's pace run goes ahead as planned.
Long rideSun · 4 h
Each hour against target power, dashed line at 180 W
178 Wavg power
-5%fade in hour 4
210load, 215 planned
Four hours right on target for three of them. Power faded in the last hour, which usually means fuel, not fitness.
Next: the long ride adds a feed every 40 minutes.
SwimThu 6am · 2,400 m
Each 400 m against target pace, dashed line at 1:50/100m
1:52avg /100 m
31strokes a minute
48load, 50 planned
2,400 m at 1:52 per 100, before work. The early start didn't cost you anything, and the short run kept Thursday manageable.
Next: Saturday's bike and run is on as planned.
Noted: you like reviews short
  1. 1Ask
    TodayMon
    Easy run, 45 min
    Week 7 of 12 · Build
    I fly out early Tuesday and get back late that night, so I can't run at all on Tuesday. Monday is wide open.

    Tell the coach what changed, in your own words.

  2. 2Proposal
    TodayMon
    Keep the speed session, it's the key work of the week: do it today. Today's easy run goes, so the day isn't doubled.
    THE TRADE-OFFOne easy run lost. Thursday's tempo still gets two days of space.
    ApproveKeep the plan

    A specific fix, and what it costs the week.

  3. 3Approve
    This weekMon
    MonSpeed session
    MonEasy run
    TueTravel
    WedEasy run
    ThuTempo run
    FriEasy run
    SatLong run
    Approved

    The coach suggested this fix, so it checked first. Ask for a change yourself and it's made at once.

  4. 4Calendar and watch
    Speed sessionMon
    Warm-up, reps, cool-down
    Steps with pace and heart-rate targets
    On your calendar, read back
    Sent to the watch

    Checked, not assumed: on the calendar, then sent to the watch.

Open the live demoOpen the live demoOpen the live demoOpen the live demo

The real app on invented data, for the event you picked above. No sign-in needed.

05Where it goes

From your next session to every goal you set.

Today

Your plan, reworked around your life

  • Reworked around a trip, a missed session or a bad night
  • A morning note, and a read on every workout
  • Learns how you like to be coached
  • Workouts with targets, sent to your watch
  • In the app, Claude, ChatGPT, Cursor and more
  • Full plans for running, cycling and triathlon
Over time

It gets better on its own

  • Spots what works for you and does more of it
  • Adjusts as your fitness, schedule and preferences change
  • Needs less from you the longer you train with it

The more you train with it, the better it knows you.

You set the goal. You do the workout. NextSession takes care of the rest.