Frank Gore has said he wants to beat the odds.Though running backs traditionally start heading downhill once they hit their 30th birthday, the 49ers' standout running back -- coming off two straight seasons of rushing for more than 1,200 yards -- has said he's going to be different.And, if his performance Friday night is any indication, perhaps Gore has another good season -- or two or three -- ahead of him.In a 15-13 exhibition-game victory over the Chiefs in Kansas City, Gore was in the game for just a few plays, carrying just two times. But on one of those carries Gore broke away for a 52-yard gain.Though Gore is entering his eighth NFL season, he has no plans to slow down, saying during this training camp that he "is hungrier than ever."Gore has trained hard this off season -- as he always has -- and hopes to continue to stay among the league's elite backs on a team loaded with offensive talent.His personal trainer recently told the Bay Area News Group that Gore is relentless in his training, approaching every drill as if it were "the last play of the Super Bowl."Friday, Gore certainly didn't seem as if he's lost a step.On the very first 49ers play from scrimmage, Gore took a...