Times every lap from your phone's GPS, with your best and last lap in big digits on the dash.
Lapforge: Track Day Lap TimerTimes every lap from your phone's GPS, with your best and last lap in big digits on the dash.
Grundy County Speedway track map
The layout of Grundy County Speedway, drawn from its OpenStreetMap outline with north at the top, and a lap length of 0.34 mi (0.55 km).
Time your laps at Grundy County Speedway
Lapforge knows Grundy County Speedway: when you arrive, it recognizes the track from your phone's GPS and draws this outline on the timing screen with your position on it.
Press GO, tap Set start line as you cross the line on your first lap, and Lapforge saves that line for every visit. Each lap after is timed from GPS, placed between two GPS readings rather than rounded to the next one. Lap timing and your lap history are free, with no account.
Tracks near Grundy County Speedway
- Norway Motorsports Park 14 mi away
- Autobahn Country Club 15 mi away
- Route 66 Raceway 18 mi away
- Chicagoland Speedway 19 mi away
- Illiana Motor Speedway 52 mi away
- Wilmot Raceway 77 mi away
Track data © OpenStreetMap contributors, ODbL. Download the circuit data. Lengths are measured along the mapped racing surface.