A coach that knows you

Your training plan should react to you.

Agonistes is a personal endurance coach that understands your training, recovery, goals and real-life context — and adapts your plan accordingly.

Your coach

Fri 21 Aug

Your weekAs planned

Today

Fri 21 Aug

Saturday

22 Aug

VO₂ intervals5 × 3 min · load 88

45 min easyZ2 · load 41

Tell your coach how you feel…

Your coach

Friday 21 August

I had one too many beers last night 🍺 but honestly I feel pretty good. Can I still do today’s VO₂ session?

Coach

Resting HR

58bpm

+6 vs baseline

Sleep

6:12hrs

1h48 below usual

Yesterday

96load

planned 84

This week

+8%

vs 4-week avg

I’d keep the VO₂ for tomorrow.

You might feel good enough to train, but your recovery signals are not as optimistic as you are. Your resting heart rate is up six beats and you slept an hour and three quarters short.

I would replace today’s VO₂ session with 45 minutes easy and move the intervals to tomorrow. Your week still lands within a point of the original load.

Your weekUpdated

Today

Fri 21 Aug

45 min easyZ2 · load 41

Saturday

22 Aug

VO₂ intervals5 × 3 min · load 88

A coach that knows youAgonistes is a personal endurance coach that understands your training, recovery, goals and real-life context — and adapts your plan accordingly.

Remembered about you

Recovers well from volume, poorly from back-to-back hard days
Prefers longer intervals to short reps
Runs easy days a little too fast

Goal

Sub 45:00 10KAntwerp · 12 October

One email when there is something to try. No newsletter. How we handle your data.

The full picture

One conversation, a whole season behind it.

Today’s decision is the part you talk to. Behind it sits the plan it belongs to — every session between here and race day, and what each one is for. Have a look around.

August 2026

Week 6 of 14 · base

load 393 / 400

45 min easy

Moved by your coach

Structure: 45 min continuous
Target: Zone 2 · HR below 145
Load: 41

Was VO₂ intervals. Your resting HR was up six beats and you slept under six and a half hours, so the session moved to Saturday.

Guardrails

AI coaching, with guardrails built in.

A coach that agrees with everything is not a coach. Ask a language model to write your week and it will happily invent one; here a physiology engine works out what today can actually ask of you, and the coach only chooses inside that. The conversation can change your session. It cannot change what is safe.

Allowed load bandceiling 68 · chosen 54

hard ceiling

The model may move down inside the band. It has no mechanism to move the ceiling up.

It will not train you through a red flag

Ask for the hard session anyway and it will say no and tell you why. Elevated resting heart rate, a fortnight of climbing load, a niggle you mentioned last week — the ceiling holds whatever you request.

Your data stays where you put it

Activities that reach us second-hand through Strava count toward your load and stay visible to you, and are machine-excluded from model inference and every persistent index.

Every call shows its working

Each session carries the reasoning and the numbers behind it. Ask why, say it felt wrong, move it a day — the plan changes and tells you what it traded away.