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| ARCA Menards Series East | |
|---|---|
| Venue | Flat Rock Speedway |
| Location | Ash Township, Michigan |
| Corporate sponsor | Dutch Boy |
| First race | 1985 |
| Laps | 150 |
| Previous names | Howard Williams Memorial (1985) Flat Rock 125 (1986) Miller High Life ARCA 125 (1987) Grand Auto Parts 150 (1987) Miller High Life 150 (1988, 1989) Jomar Race Engines 150 (1988) Metro 25 Tire Centers 150 (1989, 1991–1995) Miller Genuine Draft 150 (1990, 1991–1996) Metro Tire Centers 150 (1993) AC Delco 150 (1995, 1996) Clarklift of Detroit 150 (1997) Flat Rock ARCA 150 (1998) Jasper Engines & Transmissions 150 (1999, 2000) Dutch Boy 150 (2023–present) |
| Most wins (driver) | Ed Hage (4) |
| Most wins (manufacturer) | Chevrolet (11) |
| Circuit information | |
| Surface | Asphalt |
| Length | 0.25 mi (0.40 km) |
| Turns | 4 |
The Dutch Boy 150 is an ARCA Menards Series East race held at the Flat Rock Speedway in Ash Township, Michigan. The inaugural event was held on July 13, 1985 and was won by Ed Hage. The race has been run each year since 1985 except from 2001–2022.