Frejus, an import from Argentine, slipped through an opening along the rail to win the $50,000-added Resolution Handicap at Bowie yesterday by a head over the pacesetter, Cortan.
Chati, highweight at 124 pounds, finished third, more than two lengths behind the leaders.
Bowie's opening-day feature was cut down to six starters because of the late defection of Wilmington Flask.
The winner was bred by Haras El Turf in Argentina and had made his American debut a winning one at Bowie in October. Since then the 5-year-old had been outrun in two races, but the addition of blinkers yesterday, plus a sloppy track, helped him.
He paid $15.80 to win and posted a 1:43 4/5 clocking for the 1 1/16 miles.
Jockey Jim Lewis claimed foul, alleging that Frejus brushed with Cortan several times through the stretch. The stewards disallowed the claim as insufficient for a disqualification.
Trainer Richard Dutrow broke in front in the trainers' standings when he saddled three winners on the opening-day card. Two were ridden by comeback jockey John Adams, the third by apprentice Christopher Baker.
The crowd of 13,709 wagered $1,454,927. Doctriness, L'Native, Dearyouloveme, Armada Way and Crisp Turn.
Wondrous Me, winning her fifth race in six starts, returned $6.20, $3.80 and $2.80.
Dearyouloveme led early and still was ahead at the top of stretch. But Dearyouloveme gave way to Wondrous Me, who went on to claim a net purse of $32,220 and break the stakes record of 1:103.5, set by Quintas Vicki in 1976.