Padua Stables' favored Admiral's Arch overcame traffic problems while lugging in down the lane to register a half-length victory in the $100,000 Northern Spur Breeders' Cup for 3-year-olds on the Arkansas Derby (gr. II) undercard Saturday at Oaklawn Park.Shaun Bridgmohan guided the Florida-bred son of High Yield-Burning Hope (Dehere) to victory in the colt's stakes debut at odds of 5-2 for trainer Steve Asmussen. Admiral's Arch was pinched at the start while breaking 10th in the 11-horse field, found himself boxed along the inside on the backstretch and had to weave his way through traffic to reach contention on the far turn. Once in position to battle the pacesetting Sweetening for command in the stretch, Admiral's Arch lugged in before getting the lead inside the furlong pole. He held on in the drive for the wire.Sweetening, a 37-1 shot ridden by Francisco Torres, was second, 4 1/2 lengths clear of the third-place horse, Mr. Pursuit, with Jamie Theriot. The final time for the one-mile event was 1:38 3/5.Hallowed Flag finished fourth, followed in fifth by the 3-1 second choice, High Adventure.Admiral's Arch, who has been first or second in each of his last six starts, turned the tables on Mr. Pursuit, who beat him by 1 1/4 lengths in a 1 1/16-mile optional allowance/claiming race at Oaklawn on March 25. The dark bay colt won for the second time in seven lifetime outings while earning $60,000 to boost his bankroll to $109,600.The winner paid $7, $3.80 and $3. Sweetening returned $27 and $11, while Mr. Pursuit was $4.20 to show.