Pacelane reads every stride from your watch — cadence, ground-contact, HR drift — and tells you exactly what to do today: push, hold, or back off. No 14-tab dashboard. Just the call.
Coach: HR drift is 3.1% — clean aerobic effort. Keep tomorrow easy and you'll PR the 10K Sunday.
Five sensors, one verdict. Pacelane turns raw watch data into a plan you can actually follow — and tells you when the plan is wrong.
We fuse sleep, resting HR, HRV and last night's training load into a single 0–100 readiness score — recalculated the second your watch syncs.
Cadence, ground-contact balance and vertical oscillation, flagged when they drift off your baseline.
Miss a session? Pacelane reshuffles the week so race day still lands. No guilt, no spreadsheet.
Everything runs on-device — GPS, splits, and the coaching verdict are computed locally and sync when you're back in range. Your route never leaves your phone unless you share it.
Km 3–4 was faster than your goal pace. Nice control — you had more in the tank.
Pacelane learns your true lactate threshold from race efforts — not a textbook 220-minus-age formula — and grades every split against the zone you were supposed to be in.
Track for free forever. Upgrade when you want the coach to start making the calls for you.
For tracking your runs and seeing the basics.
For runners chasing a PR with a plan that adapts.
For coaches and run clubs managing a squad.
"I took 6:41 off my half-marathon in one block. The readiness score talked me out of two stupid hard days that would've wrecked me."
"The GCT-balance alert flagged a left-side limp three weeks before it would've become an injury. Caught a hip issue I couldn't feel yet."
"I coach 31 runners on the Club plan. The squad load view replaced a Google Sheet I dreaded every Sunday. Now I see who's cooked at a glance."
Still curious? Reach the team at [email protected] — a real coach answers.
We weight four inputs against your personal 60-day baseline: overnight HRV (40%), resting heart rate (25%), sleep duration & debt (20%), and acute-to-chronic training load (15%). It recomputes the moment your watch syncs each morning.
The watch app uses your existing GPS session — no extra sensors — so there's no measurable hit. On the phone, the coaching model runs on-device only when you open a run, typically under 400ms, and never in the background.
No. Pacelane derives your threshold from race-pace efforts and corrects for wrist-optical lag, so wrist HR is enough for zone training. If you do pair a strap, we'll use it automatically and tighten the zone boundaries.
Yes — a one-time bulk import pulls up to 5 years of activities so your baselines are accurate from day one. We keep the two-way Switchback sync on so your runs still post to your feed.
Tell Pacelane you're hurt and it switches to a return-to-run protocol, rebuilding volume by ~10% per week. Skip a week and it reflows the block toward your race date instead of dumping every missed session into Monday.
Join 142,800 runners who stopped overthinking their training and started trusting one honest number every morning.