tri · ai
Forensic analytics for serious triathletes.
Forensic analysis of every swim, bike, run and race, projections, and fuel timelines. Plus a coach that reads how your training actually goes and proposes changes you approve, never behind your back. Built on the data your watch already captures. No hidden math, no vibes.
Adaptive coaching · coming to beta
A coach that adapts to your training and leaves you in control.
It reads how every key session actually went, and when the plan needs adjusting it proposes the smallest change that fixes it, with the reasoning, for you to approve. Your plan is never rewritten without you.
It never changes your plan behind your back
Other adaptive apps silently rewrite your week overnight, the #1 reason athletes quit them. tri-ai proposes; you review and approve every change. Nothing goes to your calendar without you.
Every change comes with the reason
Nothing unexplained. Each suggestion carries a one-line physiological rationale: move Thursday's intervals, ease Saturday's ride, and why. The thing athletes leave other platforms to find.
It reacts to what you actually did
Every interval judged against your prescription, not "assumed complete" like the calendar apps. A blown or missed key session is seen, and the coach responds to it.
What you get
Lap-by-lap forensics
Every interval, every drift, every dropped pace flagged against your prescribed plan. No more 'felt good': see the truth.
Per-workout AI analysis
Claude reviews each session and writes a forensic note across 5 sections: what worked, what didn't, what to adjust. Pick the voice that fits: balanced, conservative (Friel-leaning), aggressive (FasCat-leaning), or race-week taper.
Race Scout: who am I racing?
Paste in the race's public start-list link and Race Scout works through the field, looks up how each competitor has been ranking, and tells you who is ahead of you and who is behind on paper. Pre-race intel, not guesswork.
Race-day forensics
After every race, drop the chip-time URL and Race Analyser builds a per-leg debrief: where you executed, where you bled time, where you sat in your age-group. Per-discipline lap charts, body battery + stamina drift, power curve on the bike, all benchmarked against YOUR training fitness, not generic age-group numbers.
Ask Coach
A conversational AI scoped to your training data alone. "Why has my run pace plateaued the last six weeks?" → grounded answer with actual numbers, not generic advice.
Form & fitness curve
CTL · ATL · TSB tracked daily so taper and peak hit when you need them, not when you feel them.
Brick-derived race pacing
Race-day projections that calibrate from YOUR brick workouts, not a generic +8s/km penalty.
Daily readiness
Body battery, sleep score, HRV, and the day's planned intensity feed a single GO / MODIFY / SKIP recommendation. No more 'I feel OK' guesswork: the data tells you when to back off.
Race-day fuel timeline
Pre-during-post carbs scaled to your weight, ride duration, and goal intensity. Minute-by-minute intake schedule for race morning, when to take the gel, when to drink, when to top up.
Race Analyser · Olympic-distance debrief
Finished the race. Now see what actually happened.
Upload the .fit + the chip-time URL. tri-ai stitches the watch data with the official splits, ranks you against your age group, and writes the per-leg debrief, grounded in YOUR training fitness, not generic age-group benchmarks.
- 🏊B+Swim25:58
1.5 km · 1:43 / 100m · HR drift +14 bpm rep 1→12 · fitness-bound
- 🔁BT12:39
chip time · 50 s slower than your 3-brick median
- 🚴A−Bike1:11:32
NP 209 W · 89% race-day FTP · 7% fade over second half (220→200 W)
- 🔁B+T22:04
chip time · in line with median
- 🏃ARun41:22
4:01 / km · Z3/Z4 throughout · off-bike penalty +4 s/km vs standalone
Cross-cutting takeaway
The fade is on the bike, not the run, bike-leg durability is the limiter. Next block: 3× sub-threshold (88-93% FTP) rides per week for 4 weeks, no all-out efforts on the bike until race week.
Example output, your debrief uses your own thresholds, your own brick history, and your actual results page.
Common questions
▸What does it integrate with?
▸Is my data safe? Where is it stored?
eu-west-2), encrypted in transit and at rest. We don't sell or share your data. We use privacy-first product analytics (PostHog EU, no IP collection, no session replay) to understand which features get used. No ad-tech, no third-party trackers. Full details in the Privacy Notice.