 She continued to improve, again setting a personal best in the 100 meters in San Diego on June 25, 1988, but still remained shy of then American record holder Evelyn Ashford's three best times.A week before the trials she ran a tune-up race in 10.99 in Santa Monica.In the first race of the quarterfinals of the U.S. Olympic Trials, she stunned her colleagues when she sprinted 100 meters in 10.49 seconds, a new world record.