Bob Baffert was the first trainer to win the Pegasus World Cup Invitational twice. National Treasure, the Preakness winner last year, dug deep in the stretch to win the 1 1/8-mile Pegasus World Cup at Gulfstream Park on Saturday. The Grade 1, $3 million race is the richest of the year at Gulfstream, and National Treasure — the 5-2 favorite — had to hold off hard-charging Senor Buscador in the stretch run to get the victory.