Former Cowboys quarterback Tony Romo, who won the American Century Championship Sunday, shot a 74-76--150 Monday and failed in his attempt to qualify for the U.S. Amateur. His 4-over score tied for 15th at Mascoutin Golf Club in Berlin, Wis., and he missed qualifying by 10 shots.Romo would have pocketed $125,000 for winning the American Century Championship celebrity event in South Lake Tahoe, Nev., but he elected to retain his amateur status.In Dallas-area qualifying for the U.S.