Brilliant, who has been nearly flawless since trainer Neil Howard switched him to the turf in late April, roared to a 6 1/2-length victory in Saturday's Grade 3, $492,500 at Delaware Park.
Ridden for the first time by Mark Guidry, Brilliant ($11) made a three-wide move to blow past tiring pacesetters Diabolical and Kip Deville moving through the final turn and drew away to prove much the best in a field of 10 3-year-olds.
New York shipper Carnera finished second, 2 3/4 lengths in front of 46-1 Kentucky invader Sea of Trees.
After Market, unbeaten in his first four career starts, was never a factor and finished last as the even-money favorite.
In 5 starts on grass, Brilliant has 4 wins, including the Grade 2 Jefferson Cup at Churchill Downs. His only loss on turf came when he stumbled at the start of the Grade 2 Hall of Fame at Saratoga.
The winning time for 1 1/8 miles over a yielding course was 1:56.63.
"He handled the yielding turf well," Guidry said. "We just sat in third and into the last turn he started pulling me up to the leaders. He is just a very nice horse."
Endine: Miraculous Miss sharp
Miraculous Miss ($6.60), racing for the first time since she was injured in the gate awaiting the start of the June 10 Acorn at Belmont, flew from last to first under jockey Ramon Dominguez in the Grade 3, $200,000 for fillies and mares.
Making her first start against older horses, Miraculous Miss ran six furlongs in 1:09.82. She finished 1o1/2 lengths in front of the longshot pacesetter Gilded Gold, with Coli Bear, also from the barn of winning trainer Steve Klesaris, taking third.
* Present Danger ($39.40), racing on dirt for the first time in more than two years, overtook Debbie Sue by a length in deep stretch to win the $100,900 George Rosenberger Memorial for fillies and mares.
The race was was taken off the turf course and moved to the main track, resulting in six scratches.
* The millionaire 6-year-old Cherokee's Boy ($3.80), ridden by Dominguez for trainer Gary Capuano, outraced four rivals from start to finish in a 2 1/4-length win in the $103,000 Owners' Day Handicap at 1 1/8 miles.