Most serious runners are training off generic plans built for recreational joggers. HARRIER reads real training data — HRV, pace, fitness load — and rebuilds the plan every Monday around your actual race calendar. Built by runners who have competed at the highest level.

Two tools, one platform — a serious training app for competitive runners and a full roster dashboard for the coaches who develop them.
Tell HARRIER your goal race. It reads your actual data — HRV, pace, fitness load — and builds a periodized plan around it. Every Monday it rebuilds based on what actually happened the week before. No templates. No recreational defaults.
HARRIER replaces the spreadsheet and the group chat. See mileage compliance, HRV flags, and fitness trends for every runner on your roster — and push individual workouts without a dozen follow-up messages.
Every athlete generates pace, HRV, and fitness load data every single day. HARRIER reads it and turns it into periodized, race-specific plans — rebuilt every Monday, designed by someone who has competed at the national level.
HARRIER periodizes your season around your actual meet schedule — building load through base and sharpening into a taper that lands exactly when your XC championship or track invitational does.
Set your goal race and PRs. HARRIER's AI builds a periodized block from your real fitness data and re-runs the algorithm every Monday. Your plan is never more than a week out of date.
Your whole roster in one view — mileage compliance, fitness trends, recovery flags. Know who's thriving, who's grinding, and who needs a conversation before they get injured mid-season.
HRV predicts overtraining 10–14 days before your athlete feels it. HARRIER tracks baselines daily and automatically backs off load when a dip signals that recovery, not hard work, is what wins next weekend.
Running power, stride efficiency, and ground contact time synthesized into a single Training Efficiency Score. Trending up? Push. Dropping before a big meet? Pull back now.
DM an individual with a modified session. Broadcast Thursday's track intervals with exact splits attached. Your squad knows what to do — and why — without a group chat turning into chaos.
Not a product roadmap. HARRIER came from competing seriously and finding that nothing was built for how serious runners actually train.
Every parameter — periodization, HRV thresholds, taper logic — built by runners who have stood on start lines that matter.
Compliance, mileage, and fitness for every athlete. Spot who needs attention before it becomes a problem.
Built for serious runners. Priced like we mean it. No per-athlete fees, no paywalled basics.
14-day free trial · No credit card required
Start Training as CoachConnect your device and HARRIER reads 90 days of training history immediately. No wizard, no templates — just a plan built around your actual fitness and race schedule.
FREE 14-DAY TRIAL · NO CREDIT CARD · CANCEL ANYTIME