Your athletes connect Strava or Garmin once and their training arrives on its own. You read it — load, form, laps, the same session against every previous attempt — build next week, and it lands on their watch. All of it anchored to zones from a real lactate test instead of a percentage of a guess.
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Only test people? If you run step tests for clients and hand back a report — no calendars, no athletes to follow — that is its own product.
See LaChart for testers →The loop a coach actually runs, per athlete, without a spreadsheet in the middle of it.
Invite an athlete or create them yourself. They connect Strava, Garmin or Apple Health once and every ride, run and swim lands in your workspace from then on.
From a lactate test rather than a percentage of an estimate — yours, or one a studio ran. Every number downstream is anchored to those two thresholds.
Structured sessions with targets in watts, pace, heart rate or their own zones, dropped straight onto the athlete’s calendar.
The session is written into their Garmin Connect calendar as a structured workout — the steps become laps, with targets, on the device.
Planned against completed, load and form, laps and intervals, and the same session compared with every previous attempt at it.


Every card below is the real component out of the app. Click them — or read them in detail under coaching a roster, planning & workouts and workout analysis.
The whole coaching platform is here. The difference is what the zones are made of — a measured lactate curve rather than a percentage of an estimate.
A calendar they can follow, zones that came from their own physiology, and sessions that explain themselves.
Build the week, push it to their Garmin, and see what came back against it.
Laps, intervals, streams and load — and the same session every time they have done it.
Power, heart-rate and pace zones straight from their lactate test.

Every test exports as a clean PDF carrying your logo, studio name and contact details — the professional handout clients expect, with LT1, LT2, OBLA and their full power / heart-rate / pace zones.
Brand your first reportThe tools that turn testing into a coaching service.
Switch between athletes in a tap. Status dots show at a glance who is training, who has gone quiet and who is due to be retested.
Strava, Garmin and Apple Health sync in the background — power, pace, heart rate, cadence, laps and per-second streams. Nothing to upload, nothing to chase.
TSS per session, CTL, ATL and TSB per athlete, with a plain-English read on whether they are fresh, productive or digging a hole.
Repeat workouts are recognised and grouped, so 5×8min in August sits beside the same session in March — power, heart rate and what moved between them.
Build the session once and it appears in their Garmin Connect calendar with every step and target intact. They press start; you see it come back.
Duration, distance, load and average power side by side with what you asked for — per session and across the week.
LT1 and LT2 by six methods with the measured points on top, and power, pace and heart-rate zones generated from them.
An annual structure with blocks and target load, races with a countdown and taper, and a weekly review you write once and keep.
Comments live on the training, not in a separate thread — the athlete asks about Tuesday under Tuesday.
“I coach 14 triathletes. The athlete switcher and the ‘ready for lactate’ filter saved me two hours a week. Status dots are pure gold.”
No charge today · cancel anytime