Oregon State is the surprise of the college-football season so far, upsetting No. 13 Wisconsin and winning at No. 19 UCLA and Arizona en route to a No. 14 ranking. But if anything can derail the Beavers' hopes, it's not their anemic run game or brutal schedule, it's this: their proximity to an In-N-Out Burger.

Oregon State celebrated its two Pacific-12 Conference wins by putting away a total of 275 double-doubles from the Irvine, Calif.-based chain, which has outlets in California,...