Accelerate stunned overwhelming favorite Arrogate to win the $300,000 San Diego Handicap by 8 1/2 lengths Saturday at Del Mar, snapping the seven-race winning streak of the world's top-ranked horse. All but $214,466 of the $2,671,938 total win, place and show pool wagering was bet on Arrogate, the 1-20 favorite. Arrogate's winning streak included the $6 million Breeders' Cup Classic last year, the $12 million Pegasus World Cup and the $10 million Dubai World Cup. [...] Baffert said the weight difference had nothing to do with the result. Heading to the rail beforehand, Accelerate's trainer, John Sadler, said he thought the race would be closer than people thought. [...] Arrogate's rally was brief while Accelerate cruised to the finish line in front of a shocked crowd at the seaside oval north of San Diego. Arrogate will have a chance to turn the tables in the $1 million Pacific Classic on Aug.