07/26/2007 12:00AM

'Cowgirl' has run with better


GRAND PRAIRIE, Texas - There are more-accomplished fillies than the maiden Ride Em Cowgirl in the $70,000 Silver Spur Breeders' Cup at Lone Star Park on Saturday, but few have faced the quality of runners she lined up against this spring in Kentucky.

As a result, Ride Em Cowgirl will start as a top contender against stakes winner Valid Lilly in the Silver Spur, a six-furlong race for 2-year-old fillies. Others making up the nine-horse field include American Prize and Top Story, who finished second and third in the $50,000 Princess at Louisiana Downs, and the Joe Petalino-trained entry of Dill or No Dill and Victory Trip.

Ride Em Cowgirl has had some close calls against quality fillies in her five starts. She was third to Wonderful Luck, future winner of the $77,000 Cinderella at Hollywood Park, in a maiden race at Keeneland in April. A month later, Ride Em Cowgirl was second by three-quarters of a length to Dreabons Legacy in a maiden race at Churchill. One start later, Dreabons Legacy was second to Rated Fiesty in the Grade 3 Debutante.

Ride Em Cowgirl also has run well against Sky Mom, who went on to become stakes-placed at Woodbine, and Honest to Betsy, a filly she faced last out who in her next start was a four-length maiden special weight winner at Belmont Park.

"She's a horse that is unfortunate to be a maiden," trainer Tom Amoss said of Ride Em Cowgirl. "She's run against some good fillies."

Ride Em Cowgirl comes into the Silver Spur off a third-place finish in a maiden race at Churchill June 24. A quick horse, she did not get the break or the trip in the race, and rallied from fifth in the slop.

"The race didn't unfold correctly for us, and it cost us," Amoss said. "So we're looking forward to getting back on track and running her style of race."

Amoss would like to see her be prominent Saturday. He has given the mount to leading rider Ramsey Zimmerman.

Valid Lilly is out to build upon what has been an outstanding meet. In her last start, she became a stakes winner with a 6 1/2-length romp in the $125,000 Texas Stallion Stakes.

"She ran a nice race in the Stallion Stakes," said Steve Asmussen, who trains Valid Lilly. "She's run really well. She's 3 for 4 now."

Luis Quinonez has the mount in the Silver Spur.

* Lone Star is giving away canvas sports bags with paid admission while supplies last on Saturday.