LapsHub
2
bart
1:25:545.4
Porsche 911 Carrera 2$ #482
+0.844s
Jul 28, 2024
Racetracks · Leaderboard
Grattan Raceway lap times
Track Record
1:25:101.1
marek
3Drivers
1.4142086Miles
Track map
Reference line preview
1
marek
1:25:101.1
Porsche GT4 RS (2025) #7
Jul 28, 2024
3
jonathan
1:28:542.0
Porsche GT4 #43
+3.841s
Jul 28, 2024
All-time fastest laps
3 drivers
PosDriverCarLap TimeGap
1
marek
Porsche GT4 RS (2025) #7
1:25:101.1
—
2
bart
Porsche 911 Carrera 2$ #482
1:25:545.4
+0.844s
3
jonathan
Porsche GT4 #43
1:28:542.0
+3.841s
About Grattan Raceway
1.414-mile technical west Michigan club circuit
- 1.4142086 mi
- 13 turns
- Opened 1962
- Belding, Michigan
Grattan Raceway is a 1.414-mile, 13-turn circuit near Belding, Michigan. Opened in 1962, it is known for blind crests, camber, and sustained amateur road-racing use.
The 1.4142086-mile, 13 turns layout rewards smooth inputs and track knowledge — a lap that improves once you learn the braking markers and apexes.
Grattan Raceway is on the North American track-day calendar. Record laps in the LapsHub app with phone GPS or RaceBox telemetry — publish a verified lap when you are ready to chase a public leaderboard.
Notable features
- Blind crests: Several corners over blind rises — a technical Michigan lap.
- Off-camber corners: Camber changes punish imprecise lines.
- Club racing focus: A SCCA and Midwestern Council staple since 1962.
Submit your lap
Beat the record at Grattan Raceway
Current record: 1:25:101.1 by marek
Download LapsHub, record with a RaceBox at 25 Hz, and publish your lap to qualify for the public leaderboard. Phone GPS laps time in the app and live feed but do not rank here.