Still asking ChatGPT about your runs?
Lots of runners ask ChatGPT things like "My 5K is 24 minutes, what should my easy pace be?" or "I ran 30K this week — is that overtraining?"
But copy-pasting your data, explaining your VDOT, and asking for training schedules every time gets old fast. Plus, AI doesn't know your history or recent condition changes, so you have to start from scratch every time.
TT Runner solves this inside the app. The AI reads your running data directly and builds a coaching report. No copy-pasting needed — just run.
What is individual run AI analysis?
After you finish a run and save the record, AI analyzes it. Not just listing pace and heart rate numbers — it interprets what those numbers mean.
High heart rate on an easy run
Ran easy but heart rate was too high? It flags that your condition might have been off.
Pace drop in the second half
Pace fell sharply in the back half? It tells you exactly which segment things fell apart.
PB analysis
Set a new PB? It analyzes what went right so you can replicate it next time.
By combining VDOT algorithms with an LLM, you get science-based analysis with contextual coaching on top.
Training zone classification done differently
Most running apps use heart rate to tell you "you were in the aerobic zone today." TT Runner goes a step further.
It separates training zone from cardiac effort. Here's why this matters — when a beginner runs at easy pace but has a high heart rate, most apps say "that was a threshold run." But it was actually an easy run. Their cardiovascular system just hasn't caught up yet.
The TT Runner difference
"Your intended training was easy pace, but your heart worked harder than expected" — that's the kind of clarity TT Runner provides. Training zone is determined by pace; heart rate is shown separately as cardiac effort.
Weekly coaching reports
Beyond individual run analysis, you also get a weekly coaching report.
It summarizes how much you ran this week, how training volume changed compared to last week, and your VDOT trend. You get actionable guidance like "training volume jumped 30% this week — ease off next week."
Based on Daniels' Running Formula, it automatically calculates training paces for easy, marathon, tempo, interval, and repetition runs. Paces update whenever your VDOT changes, so you never have to calculate them yourself.
Want to check your paces? Try the VDOT Calculator. For detailed training methods, see the VDOT Training Guide.
How to get your analysis
- Record your run with TT Runner (Apple Watch sync supported)
- Tap "Get AI Analysis" on the run detail screen
- Watch a short ad and AI starts analyzing immediately
- Your coaching report is ready in 30 seconds to 1 minute
Once analyzed, you can revisit the report anytime without watching another ad.
Stop asking ChatGPT every time
ChatGPT can work as a running coaching tool. But copy-pasting data, explaining context, and sharing your VDOT every time is inefficient. And when the conversation thread breaks, you have to explain everything from scratch.
TT Runner has all your running data in the app, so the AI already knows your context. The more data you build up, the more accurate the analysis gets.
New to running?
AI analysis is most useful when you have data to analyze. If you haven't started running yet, check out the Beginner Running Guide first — from choosing shoes to completing your first 5K.
FAQ
Is the AI analysis free?
Yes. Watch a short ad to get a free analysis. Once analyzed, you can revisit the report anytime without another ad.
Does it work with Apple Watch data?
Yes. Apple Watch data syncs automatically via HealthKit. Any synced run can be analyzed with AI right from the app.
What data does it analyze?
Distance, time, pace, heart rate, elevation, cadence, HR zone distribution — everything in your running record. VDOT-based training zone classification and cardiac effort are calculated as well.
Just run. Coaching follows.
No copy-pasting. No VDOT calculations.
AI reads every run and builds your coaching report.