Chris Duran stalked Reno Karimian until the very end, then slipped past and pulled away to win the Formula One race in the season-opening round of Moto West Grand Prix competition March 10 at Willow Springs International Raceway.

Riding a Dunlop-shod, Duran Racing-backed BMW S1000RR, Duran turned a best lap of 1:22.956 en route to a 0.261 second margin at the line after 10 laps on the 2.5-mile circuit.

Karimian, on a Dunlop-shod, A1R-backed Kawasaki ZX-10R, had the consolation of turning the fastest lap of the race, a 1:22.951, on his way to second.

Scott Tillery, aboard a Kawasaki ZX-10R, finished ahead of Jeff Stern, who also was aboard a ZX-10R.

It was Duran, Karimian and Tillery in that order on the podium spots in Open Superbike as well. Duran took the wins in 600cc Superstock and 600cc Superbike as well, while Tillery took the Open Superstock win and Stern won the Formula 40 Heavyweight race.

The weekend’s event was the first for the new racing series, backed by the owners of the Motoyard track day organization. Moto West Grand Prix has announced an eight-race series at Willow Springs for 2013, with races at the big 2.5-mile track and the smaller, tighter 1.8-mile Streets of Willow circuit. Organizers said the weekend drew 103 competitors and 257 race entries.

Moto West GP Willow Springs International Raceway Rosamond, California March 9-10, 2013 Results (as provided by organizers):

SATURDAY, MARCH 9:

NOVICE HEAVYWEIGHT: 1. Samuel Fels (Apr 1000) 2. Shawn White (Suz GSX-R1000) 3. Matthew Runyon (Hon CBR1000RR) 4. Eddie Williams Jr. (Yam YZF-R1) 5. Tyler Valle (Suz GSX-R1000) 6. Marc Ritner (Suz GSX-R1000)

NOVICE MIDDLEWEIGHT: 1. Mike Ripley (Hon CBR600RR) 2. Chris Gerdell (Yam YZF-R6) 3. Rich Hua (Kaw ZX-6R) 4. Seng Moua (Yam YZF-R6) 5. Corey Vlastuin (Yam YZF-R6) 6. Steve Goldsberry (Yam YZF-R6)

LADIES CLASS: 1. Niccole Cox (Suz SV650)

RUN WHAT YA BRUNG: 1. Tori Miller (Yamaha YZF-R6) 2. Daryl Williams (Hon CBR600RR) 3. Scott Fish (Suz GSX-R600) 4. Robert Leon (Kaw ZX-6R)

SUNDAY, MARCH 10:

600cc SUPERSTOCK: 1. Chris Duran (Yam YZF-R6) 2. Javelin Broderick (Yam YZF-R6) 3. Jason Aguilar (Yam YZF-R6) 4. Sahar Zvik (Yam YZF-R6) 5. Travis Goldstein (Yam YZF-R6) 6. Luis Quinones (Yam YZF-R6)

BRACKET B: 1. Max Cappellari (Duc 848) 2. Dan McCormack (Duc 1199) 3. Randall Workman (Suz GSX-R600) 4. Kalvin Kwong (Suz SV650) 5. Matt Greenstone (Yam YZF-R6) 6. Donnie Belansky (Duc 999)

FORMULA 50 HEAVYWEIGHT: 1. Brent Kapin (Yam YZF-R1) 2. Robert Chavez (BMW S1000RR) 3. Jaime Mantel (Hon CBR1000RR) 4. Rocky Caceres (Suz GSX-R1000) 5. Leo Ramirez (Suz GSX-R1000)

FORMULA 50 MIDDLEWEIGHT: 1. Gregory Rand (Yam YZF-R6) 2. Douglas McLarty (Suz GSX-R750) 3. David McLarty (Suz GSX-R750) 4. Lloyd Johnson (Duc 1000)

BRACKET C: 1. Leo Ramirez (Suz GSX-R1000) 2. Brian Herzfeldt (Hon VFR400) 3. Alan Brown (Duc 999)

BRACKET D: 1. Lance Lewman (Suz SV650) 2. Josh Fogle (Kaw 250R) 3. Brian Lensch (Suz SV650) 4. Cody Burton (MZ 660) 5. Stuart Erskine (Suz SV650) 6. Niccole Cox (Suz SV650)

600cc SUPERBIKE: 1. Chris Duran (Yam YZF-R6) 2. Jason Aguilar (Yam YZF-R6) 3. Sahar Zvik (Yam YZF-R6) 4. Robert Chavez (Yam YZF-R6) 5. Travis Goldstein (Yam YZF-R6) 6. Fabrice Vilder (Yam YZF-R6)

BOTT MIDDLEWEIGHT: 1. Ryan Gagliano (Duc 657) 2. Lloyd Johnson (Duc 1000) 3. Douglas Hay (Duc 749) 4. John Morena (Duc 1000) 5. Steve Slaughter (Buell XB9R)

DUCATI CUP HEAVYWEIGHT: 1. Jim Chaconas (Duc 1199) 2. Max Cappellari (Duc 848) 3. Quentin Wilson (Duc 848) 4. Dan McCormack (Duc 1199) 5. Alan Brown (Duc 999) 6. Donnie Belansky (Duc 999)

FORMULA 40 HEAVYWEIGHT: 1. Jeff Stern (Kaw ZX-10R) 2. David Price (Suz GSX-R1000) 3. Brent Kapin (Yam YZF-R1) 4. Robert Matola (Yam YZF-R1) 5. Calvin Hutchinson (Yam YZF-R1)

FORMULA 40 MIDDLEWEIGHT: 1. Fabrice Vilder (Yam YZF-R6) 2. Richard Sadler (Hon CBR600RR) 3. Robert Chavez (Yam YZF-R6) 4. Gregory Rand (Yam YZF-R6) 5. Jim Chaconas (Duc 848) 6. Alex White (Yam TZ250)

FORMULA 500cc GP: 1. Andy Edwards (Apr RSV250) 2. Brian Herzfeldt (Hon VFR400) 3. Richard Downer (Kaw 250R)

FORMULA DINOSAUR HEAVYWEIGHT: 1. Lloyd Johnson (Duc 1000)

FORMULA DINOSAUR LIGHTWEIGHT: 1. Charles Burnett (Hon NT650 Hawk) 2. Michael Gougis (Yam TZ660)

750cc SUPERBIKE: 1. Luis Quinones (Yam YZF-R6) 2. David McLarty (Suz GSX-R750) 3. Douglas McLarty (Suz GSX-R750) 4. Ryan Harper (Hon CBR600RR) 5. Randall Workman (Suz GSX-R600)

OPEN SUPERBIKE: 1. Chris Duran (BMW S1000RR) 2. Reno Karimian (Kaw ZX-10R) 3. Scott Tillery (Kaw ZX-10R) 4. Corey Sarros (Suz GSX-R1000) 5. Joshua Uebersetzig (Suz GSX-R1000) 6. Jesse Coombe (Kaw ZX-10R)

FORMULA TWINS HEAVYWEIGHT: 1. Jim Chaconas (Duc 1199) 2. Jake Dolan (Buell 1125R) 3. Quentin Wilson (Duc 848) 4. Dan McCormack (Duc 1199) 5. Dave Thorne (Duc 1098)

FORMULA TWINS LIGHTWEIGHT: 1. Ryan Gagliano (Duc 657) 2. Michael Gilbert (Suz SV650) 3. Peter Esquivel (Suz SV650) 4. Kalvin Kwong (Suz SV650) 5. Brian Herzfeldt (Kaw 650R) 6. Chuck Burnett (Hon NT650 Hawk)

FORMULA TWO: 1. Sahar Zvic (Yam YZF-R6) 2. Fabrice Vilder (Yam YZF-R6) 3. Travis Goldstein (Yam YZF-R6) 4. Luke Luciano (Yam YZF-R6) 5. Robert Chavez (Yam YZF-R6)

125cc GP: 1. Willard Ivins (Hon RS125)

250cc GP: 1. Alex White (Yam TZ250) 2. Andy Edwards (Apr RSV250) 3. Josh Fogle (Kaw 250R) 4. Tania Davidson (Kaw 250R)

FORMULA ONE: 1. Chris Duran (BMW S1000RR) 2. Reno Karimian (Kaw ZX-10R) 3. Scott Tillery (Kaw ZX-10R) 4. Jeff Stern (Kaw ZX-10R)

250cc CUP: 1. Josh Fogle (Kaw 250R) 2. Tania Davidson (Kaw 250R) 3. Tony Serra (Kaw 250R) 4. Jamie Lenore (Kaw 250R)

FORMULA SINGLES: 1. Willard Ivins (Hon RS125) 2. Michael Gougis (Yam TZ660) 3. Cody Burton (MZ 660)

BOTT LIGHTWEIGHT: 1. Ryan Gagliano (Duc 657) 2. Michael Gilbert (Suz SV650) 3. Peter Esquivel (Suz SV650) 4. Kalvin Kwong (Suz SV650) 5. Lance Lewman (Suz SV650) 6. Tania Davidson (Suz SV650)

DUCATI CUP MIDDLEWEIGHT: 1. Quentin Wilson (Duc 848) 2. Max Cappellari (Duc 848) 3. Harry Leitner (Duc 848) 4. Douglas Hay (Duc 749)

NOVICE HEAVYWEIGHT: 1. Samuel Fels (Apr 1000) 2. Shawn White (Suz GSX-R1000) 3. Ron Cole (Yam YZF-R1) 4. Rich Hua (Kaw ZX-10R) 5. Casey Salkauskas (Hon RC51) 6. Desmond Ramos (Suz GSX-R1000)

750cc SUPERSTOCK: 1. Javelin Broderick (Yam YZF-R6) 2. Jason Aguilar (Yam YZF-R6) 3. Sahar Zvic (Yam YZF-R6) 4. Travis Goldstein (Yam YZF-R6) 5. Luis Quinones (Yam YZF-R6) 6. Douglas McLarty (Suz GSX-R750)

OPEN SUPERSTOCK: 1. Scott Tillery (Kaw ZX-10R) 2. Jake Dolan (Buell 1125R) 3. Justin Knapik (Kaw ZX-10R) 4. Robert Chavez (BMW S1000RR) 5. Joshua Uebersetzig (Suz GSX-R1000) 6. Jesse Coombe (Kaw ZX-10R)

NOVICE MIDDLEWEIGHT: 1. Chris Gerdell (Yam YZF-R6) 2. Tori Miller (Yam YZF-R6) 3. Rich Hua (Hon CBR600RR) 4. Corey Vlastuin (Yam YZF-R6) 5. Francis Marsh (Kaw ZX-6R) 6. Mike Ripley (Hon CBR600RR)