BJJ Stopwatch vs Velometrics

BJJ Stopwatch is a specialized timer application designed specifically for Brazilian Jiu-Jitsu practitioners. Whether you're training for competition, drilling techniques, or enjoying an open mat session, this app has you covered. FEATURES: • Clear Audio Signals: Start/end round notifications Warning signals at configurable intervals Rest period indicators to prepare for the next round • User-Friendly Interface: Large, easy-to-read display Simple, intuitive controls Dark mode support for low-light training environments • Quick Actions: Pause/Resume functionality Quick round reset Easy timer adjustments Perfect for BJJ students, coaches, and academies looking to structure their training sessions efficiently.

Velometrics turns your ride history into the three numbers that actually govern training — fitness, fatigue, and form — and then does the part most apps skip: it explains them. Every screen says what the number means, where it comes from, and what to do about it. No black box, no AI guesswork — classical, published sports science, computed openly. TODAY'S FORM Open the app and the answer is already there: your form right now, in a plain sentence. Fresh, neutral, productive, or overreached — with the 7-day trend, your fitness and fatigue alongside, and a one-line read of the phase you're in. Not a dashboard to decode; a verdict to act on. READINESS One call for today — push, maintain, ease, or rest — built from your form and, when you connect a recovery source, your sleep, HRV, and resting heart rate. Tap "why this verdict" and every signal behind it is laid out. Nothing hidden, nothing invented. PERFORMANCE, OVER TIME The performance chart tracks fitness (CTL), fatigue (ATL) and form (TSB) across months — and then projects them forward from your planned sessions, so you can see what next week's training does to race-day form before you ride it. Race days are marked, FTP changes are pinned to the timeline, and the ramp-rate and load-ratio guardrails tell you when you're building productively versus digging a hole. POWER, IN DEPTH Time in power zones for the last week, month, or three months — see whether your training is actually as polarized as you think. Your mean-max power curve from one second to five hours, current window against all-time bests, in watts or watts-per-kilo — so the gaps tell you what to train next. Zones recompute automatically when your FTP changes. DURABILITY How well your power holds up deep into long rides — your fresh numbers versus your numbers after real kilojoules of work, at each duration. Fatigue resistance is what separates strong riders from strong-for-an-hour riders, and now you can see yours. BUILD A PLAN FOR YOUR GOAL Set a target — a race date, or a number you want to hold — and Velometrics builds a full periodized plan to get you there: base, build, peak and taper, with recovery weeks and ramp rates kept inside safe limits. Review it, swap in alternatives, then accept, and every session lands on your calendar with its power targets in watts — ready to ride or export to Zwift, Garmin, or Wahoo. PLAN THE WORK Plan sessions with target duration and training stress, repeat weeks, or build full training blocks up to 16 weeks with a week template. A reminder nudges you if a planned ride hasn't happened; completed sessions show planned versus ridden; Sunday evening brings a weekly summary of load, fitness, and sessions done. RECOVERY CONTEXT Connect WHOOP or Apple Health and your recovery sits next to your load. WHOOP brings sleep, HRV, resting heart rate and strain; Apple Health brings sleep, resting heart rate, weight, body fat and muscle mass — each tile labeled with its source. Weight and resting heart rate flow into your athlete profile automatically. RIDING WITH A COACH? Generate a one-time key in the app and hand it to your coach. They get your plans, completion status, and shared notes — and nothing else. Your health data, power numbers, and ride details stay yours. Unlink at any time; access ends instantly. YOUR DATA IS YOURS No ads. No selling data. No AI or machine-learning training on your data — ever. Ride data imports from Strava with your authorization and is deleted within 24 hours if you disconnect. Download everything as JSON or delete your account completely, in the app or at app.velometrics.co. WHAT YOU NEED Velometrics is built around power: a power meter or smart trainer and a Strava account unlock the full experience. Set your FTP and everything else follows. Available in English, Portuguese, Spanish, French, German, and Italian. Made for riders who read the numbers.