Most athletes plateau because they're leaving efficiency on the table, levers that don't show up in watts, pace logs, or weekly volume. Grepiac surfaces them. Turns them into race-day strategy.
Watts, pace, and Load only get you so far. Most athletes plateau not because they can't push more, but because they're leaving free seconds and watts on the table in technique, position, fueling, and race-day execution.
Those gains are invisible at first glance. They live in calculators, in technique observations, in equipment audits, in race-execution analysis. That's what we surface, and what we turn into action.
Grepiac is built around four areas where coaches can move the needle, and where most other platforms either don't go, or stop short.
The analytical depth coaches actually want, surfaced in plain English. Calculators, metric history with regression detection, technique assessments, lab tests, sport-specific deep dives.
Pre-race planning to post-race learning, end-to-end. The race plan is built once, simulated, validated for feasibility, and then reflected on afterward to feed the next cycle.
The qualitative half of performance, made structured. Technique observations for swim and run; equipment changelogs for bike, shoes, wetsuit, kit.
The infrastructure for coaches running their roster inside Grepiac rather than spreadsheets, multi-team, assistant-coach hierarchy, subscription lifecycle, macrocycle templates.
Grepiac works alongside your existing training calendar, not instead of it.
Use each tool for what it does best.
Most calendar-first platforms are built to push structured workouts directly to athletes' devices, and that integration is where they shine. If that matters to your athletes, keep using whatever you already have. Grepiac does have its own calendar and workout planner, but seamless device-side push is still on the roadmap. Today, uploading workouts here is more manual than your existing calendar's automatic sync.
Where Grepiac is the better tool: efficiency monitoring across swim, bike, and run; physiology testing protocols; race planning with course and weather modeling; and the deep performance calculators (CdA, Crr, CSS, CP, fueling, sweat rate, and a few dozen more) coaches actually want at hand.
Athletes upload their workouts (FIT or TCX), Grepiac enriches them with calculator-driven insights, technique flags, and race-context analysis. Bring the schedule from wherever you already run it.
Not a general-purpose endurance app. Built specifically for coaches doing performance work, and for athletes paying for that level of analysis.
Running 5–50 athletes, doing serious performance analysis. The full platform. Multi-team, assistant coaches, macrocycle templates.
Want lab-grade analysis without a coach? Pay for premium access and use the same calculators, race plans, and analytics a coach would.
Read your dashboards, submit wellness check-ins, comment on workouts, file race recaps. Free as part of your coach's subscription.
Coaches and admins sign in here. Athletes use the dedicated portal.