HotLap: Motorsport Track Day Lap Timer & Telemetry
· v1.1.2
About
*** HotLap is Free to Try — 3 Laps Per Session: run as many sessions as you like, with each session capped at 3 recorded laps.
To record unlimited laps, unlock the full app with a one-time purchase of $6.99 — no subscription!
To unlock, open the menu, scroll to the bottom (just above the Version line), and follow the on-screen instructions. In Position and Distance lap modes, tap the screen to open the menu. In Manual lap mode a tap marks a lap, so open the menu with the physical MENU button (hold the UP button) or by pressing and holding on the screen. Your watch will need internet access — via Wi-Fi or through the Garmin Connect app open and paired on your phone — to complete the purchase. Thanks for your support! ***
Turn your Garmin into a motorsports lap timer and data logger: GPS lap timing with live delta-to-best, sector splits, G-force, and a full activity you save and review in Garmin Connect. Built for track days, HPDE, autocross, karting, motorcycling and club racing — plus touring on snowmobile, ATV, boat, jet ski or trail.
Set a start/finish line (or auto-lap by distance, or tap for manual laps), hit start, and go. Save it as a standard Garmin activity that syncs with the GPS track, speed, heart rate, temperature, elevation and lap splits, plus custom fields (G traces, per-lap and session G maxima, sector times, ascent/descent, SpO2, respiration) for analysis in third-party tools. Export the FIT from https://connect.garmin.com to analyze it in third-party motorsport analysis tools. [Open the activity → Gear/settings icon → Export File (contains the .fit raw data)].
LAP TIMING
- Position (start/finish line), Distance (presets 0.25-10 mi), or Manual (tap)
- Live delta-to-best, predicted lap, best lap, theoretical best
- 3-sector timing with live sector deltas and per-lap splits
SCREENS (page up/down to switch)
- Dashboard: at-a-glance grid — lap, sectors, speed, avg speed, distance, G, laps, temp, battery
- Simple Lap: big current-lap time colored vs. best, with delta and best lap
- Timing: current lap, predicted, best, theoretical best, live S1/S2/S3 deltas
- Stats: best lap, total laps, avg/max speed, distance, max G, max HR, max temp, ascent/descent, SpO2, respiration, GPS rate
- Lap List: scrollable history with sector splits
- Track Map: GPS trace, auto-fit, heading-up follow/zoom
- Trip (Distance/Manual lap method only): moving time, distance, distance/time back to start (or remaining to a Trip Target), ascent/descent, bearing/clock/battery
- Results: best lap + G for racing, or moving time + climb for touring
SETTINGS
- Lap Method + trigger (line radius or lap distance)
- Session Screen: choose the screen you land on when a session starts
- Trip Target: distance goal for the Trip screen's remaining/time-left (Distance/Manual lap method only)
- Units (mph / km/h / knots), Auto Pause, Alert Timer, Lap Beep
- Sounds (Quiet mutes tones, keeps vibration)
- Activity title, Strava (Generic) export, Force Pulse Ox
CONTROLS
- Tap to wake & then tap again, press-and-hold, or the MENU button (press and hold UP) to open the menu
- Manual mode: a tap marks a lap; press-and-hold opens the menu (or press and hold the UP)
- No-GPS / set-line warning ring and recording dot on every screen; "LAP N" flash, new-best alert, and a save confirmation
*** Safety: HotLap is a timing and data tool for use on closed courses, private property, and other appropriate venues. Don't interact with your watch while operating a vehicle or other motorized device — keep your eyes up and hands on the controls. Always obey traffic and venue rules and operate within your abilities. Use at your own risk. ***
Tags:
lap timer, motorsport, track day, HPDE, autocross, racing, sectors, delta, G-force, telemetry, karting, road course, driving, auto racing, road racing, club racing, autox, apex, laps, time trials, time attack, motorcycling, snowmobiling, ATV, motocross, enduro off road, 4x4 off road, boating, sailing, jet skiing, hot lap
What's new
-(User request) Added a "Static Rec View" to only show a simple static "Recording" screen with no other data presented except the best lap in small font at the bottom. This is off by default but can be turned on from settings. This is for the passive session recorder who does not want to view the live data and only wants it after the session. This has the added benefit of battery savings since no other data is needed to be painted on-screen.
-Fixed a visual bug with the "No GPS" & "Set Line" and their respective colored ring blink rate getting out of sync. Added a prompt for distance/manual lap modes when there is No GPS fixed to ensure you wish to proceed.
-Other minor bug fixes.