Cheyenne Spur breezed to the fastest trotting victory of the card in winning a division of the Colonial Trot for colts last night at Rosecroft Raceway in 1:56 2/5.

In a division of the Colonial Lady, Happy Diamonds set a Rosecroft record for 3-year-old trotting fillies by covering the mile in 1:57.

Each Colonial Trot division was worth $122,032; the Colonial Lady divisions went for $46,685 apiece.

Driver Dick Stillings and Cheyenne Spur opened up several lengths on the field at the start before pulling away to win by 10 1/2 lengths. The colt's winning time on the good track is a lifetime best and the victory increased his earnings to $337,913.

Morning-line favorite Super Arnie was scratched because of an illness.

In the first colts division, Jeanne's Somolli, driven by Rod Allen, hooked up with Armbro Iliad and Mike Lachance in the stretch for a battle to the wire. Jeanne's Somolli won by a neck in 1:56 4/5.

In the second fillies division, Happy Diamonds, with Ron Waples, trotted to a length win over favorite Model Home, driven by Berndt Lindstedt.

"I wasn't too pleased early," said Waples. "But down the backstretch I grabbed on to her a little bit and she wanted to trot on. Going into the final turn I had Lindstedt where I wanted him."

Happy Diamonds's winning time was one-fifth of a second off the world record for trotting fillies on a five-eighths-mile oval.

Happy Diamonds took the track record from Me Maggie, who won the first division of the Colonial Lady in 1:57 2/5 with Lindstedt driving. The old mark was 1:57 3/5, set by Wish For Speed in last year's Colonial Lady.

Working Gal won the final Colonial Lady in 1:57 1/5 for Lachance.