The pumpkin gained about 30 pounds a day on its way to victory Monday at the Safeway World Championship Pumpkin Weigh-off in Half Moon Bay.
Starr's pumpkin finished at a record 1,528 pounds. Starr won last year with a pumpkin that that was four pounds lighter and also set a record.
Starr, of Pleasant Hill, Ore., bought a trailer to transport the pumpkin. It has a circumference of 15 feet.
He says his secret to growing big pumpkins is good soil: "We really pamper them."