2007 AMA Supermoto Championship round 4 – July 7th/8th 2007
Waterford Hills Road Racing Track, Clarkston, Detroit, Michigan
Detroit Clarkston Supermoto
1. Mark Burkhart (#6 Yamaha YZ450F)
2. Cassidy Anderson (#15 Honda CRF450R)
3. Jeff Ward (#1 Honda CRF450R)
4. Troy Herfoss (#7 KTM 450SX Racing)
5. Micky Dymond (#43 Honda CRF450R)
6. Xavier Belerophon (#121 Husqvarna SMR450)
7. Chris Filmore (#11 Kawasaki KX450F)
8. Benny Carlson (#45 Aprilia SXV450)
9. Robbie Horton (#355 Kawasaki KX450F)
10. Gary Trachy (#357 Honda CRF450R)
11. Steve Drew (#73 Yamaha WR450F)
12. Danny Casey (#40 Yamaha WR450F)
13. Casey Yarrow (#92 Yamaha YZ450F)
14. Larry Pegram (#72 Husqvarna SMR450)
15. Jason McDonald (#986 KTM 450EXC-G Racing)
16. Jessica Patterson (#250 Honda CRF450R)
17. Chase Guthrie (#782 Kawasaki KX450F) 
18. Taylor Knapp (#87 Yamaha YZ450F)
19. Mark Cheza (#301 Honda CRF450R)
20. David Felipe (#700 Honda CRF450R)
21. Jason Conlon (#294 Honda CRF450R)
22. Eddie Ray (#249 Yamaha YZ450F)
AMA Supermoto Championship Standings after round 4
1. Mark Burkhart (93pts/3 wins/3 podiums) Yamaha Graves Motosports
2. Jeff Ward (89pts/1 win/4 podiums) Troy Lee Designs Red Bull Honda
3. Micky Dymond (66pts) All Access Parts Unlimited Race Tech FMF
4. Troy Herfoss (63pts/1 podium) KTM Hard Equipment Dunlop Akropovic
5. Christopher Fillmore (60pts/1 podium) Monster Energy Kawasaki
6. Cassidy Anderson (58pts/2 podiums) Troy Lee Designs Red Bull Honda
7. Steve Drew (54pts) Mach 1 Michelin Xryto VP Dirt Digits FMF
8. Benjamin Carlson (53pts) Factory Aprilia Rip It Energy Racing
9. Jason Conlon (36pts) CHM Exhaust Honda Pro Honda Oils Sunoco
10. Robbie Horton (34pts) Kawasaki Monster Energy Litz Racing Kawasaki
Detroit Clarkston Supermoto Unlimited
1. Benny Carlson (#1 Aprilia RXV550)
2. Darryl Atkins (#54 Aprilia)
3. Kurt Nicoll (#8 KTM 560SMR)
4. Brian Capper (#13 KTM 560SMR)
5. Robert Loire (#502 Husaberg FS650c)
M&R AMA Supermoto Unlimited Standings after round 4
1. Ben Carlson (100pts, 4 wins, 4 podiums) Factory Aprilia Rip It Energy Racing
2. Josh Chisum (70pts, 2 podiums) BP Racing Troy Lee Designs KTM
3. Robert Loire (67pts, 1 podium) Husaberg Michelin Beringer Brakes JMS
4. Brian Capper (66pts) KTM Hard Equipment Dunlop Akrapovic Silkolene
5. Kurt Nicoll (64pts) KTM Hard Equipment Dunlop Akrapovic Silkolene Acerbis
Detroit Clarkston Supermoto Lites
1. David Pingree (#101 Honda CRF250R)
2. Brandon Currie (#2 Yamaha YZ250F)
3. Eric Sorby (#917 Honda CRF250R)
4. Adam Cini (#33 Husqvarna Husqvarna TC250)
5. Drake Eric McElroy (#552 Honda CRF250R)
Hot Wheels AMA Supermoto Lites Standings after round 4
1. Brandon Currie (94pts, 2 wins, 4 podiums) Yamaha Graves Motorsports
1. David Pingree (94pts, 2 win, 4 podiums) Troy Lee Designs Red Bull Honda
3. Adam Cini (69pts, 1 podium) LA Fuel GP Husqvarna Dunlop FMF Beringer Sidi
4. Dalton Dimick (63pts) Monster Energy Litz Racing Kawasaki Michelin AMG
5. Jamie Siever (53pts) Scotty's Speed Shop Bill Eddy Motorsports Mach 1