Most of the nation's top 3-year-old trotters compete at Rosecroft Raceway tonight in the Colonial Trot for colts and Colonial Lady for fillies. Fifteen colts were entered in the Colonial, forcing a split into two divisions worth $122,032 each. The Colonial Lady, which drew 22 entries, will be contested in three $46,685 divisions.

Leading the pack is Super Arnie, the expected favorite in the second division for colts.

Trained by Bjorn Berglund out of Jan Johnson's Continental Stable, Super Arnie has had ups and downs this season.

In August, Super Arnie missed the Hambletonian. "He had bad feet," said Berglund. "We had to lay him off for a while. But, knock on wood, he's okay now."

A $100,000 yearling purchase of the KBG Stables of Malmo, Sweden, Super Arnie returned from his layoff to win the Aug. 17 Review Stakes at Springfield, Ill., in a lifetime best 1:54 4/5. On Sept. 1 Super Arnie took his fifth win of the year in a heat of the World Trotting Derby at Du Quoin, Ill., before showing bad form in the Kentucky Futurity at Lexington two weeks ago.

"He raced so-so in Kentucky, but he should be better this week," said Berglund. "He needed a tightener."

Super Arnie will be driven by Berndt Lindstedt, considered by some the best driver of trotters in racing.

Top choice in the first division is Jeanne's Somolli, trained by Carl Allen who also handled last year's 2-year-old trotting champion, Royal Troubador.

Berglund and Lindstedt also team up on Me Maggie and Model Home, the morning line picks in the first and second divisions of the Colonial Lady. The Ken Seeber-trained Working Gal gets the nod in the final division.