SACRAMENTO, Calif. -- Elizabeth Jackson became the first American woman to break the 10-minute barrier in the 3,000-meter steeplechase on Monday, winning the event at the U.S. Olympic Track and Field Trials in a time of 9 minutes, 57.20 seconds. Jackson's time beat her previous personal best by roughly 10 seconds. "I only run steeplechase after the (college) season is over," Jackson said. "I qualified (for the Olympic Trials) in the 5k and a little part of me wanted to double. But I would have had to drop so much time to be competitive (in the 5k)." Jackson, who will be a fifth-year senior at Brigham Young University, was followed by Lisa Nye of Nike in 10:00.63 and Kara Ormond of BYU in 10:03.09. The women's steeplechase is an exhibition event at the Olympic Trials and is not contested at the Olympics. # # #