Shalane Flanagan was pretty sure she'd run the 5,000 meters at the U.S. Olympic track and field trials this summer. After all, she holds the American record and is a two-time U.S. champion in the event.

Suddenly, the 10,000 is looking pretty inviting, too.

Flanagan broke the American record by 17 seconds in her first 10,000-meter race Sunday night, a stirring duel with New Zealand's Kim Smith at the Payton Jordan Cardinal Invitational at Stanford, Calif.

Her time of 30 minutes, 34.49 seconds easily bettered the previous mark of 30:52.32 set by Deena Kastor and was the fastest in the world since 2006.

Smith's runner-up clocking of 30:35.54 was a personal best by 45 seconds.

The two, who love to race against each other, traded the lead for several laps before Flanagan finally took off.

"It felt more like workouts, that we were teammates and switching laps to help our big goal of running fast," Flanagan said in a conference call Monday. "Not until the last lap did I remind myself that this is a race and you should maybe make an effort to win."

The American record was the third that the former University of North Carolina standout has set in slightly more than a year. Last year, she broke records for the outdoor 5,000 (14:44.80) and indoor 3,000 (8:33.25).

Now the 5-foot-5, 113-pounder will go to the U.S. Olympic training site in Colorado Springs, Colo., for two more weeks of training at high altitude and said she might not race again until the trials.

"I'm really glad I did a 10K," Flanagan said, "because it presented a new challenge and it's opened my eyes to the possibility of longer distances."

ARCHERS JOHNSON AND LORIG HEADED TO BEIJING: Butch Johnson is headed to the Olympics for the fifth time. Khatuna Lorig will represent her third country.

Johnson and Lorig are two of the five archers who will represent the United States in Beijing this summer. Brady Ellison, Vic Wunderle and Jennifer Nichols also qualified after a lengthy selection process that ended last week.

Johnson, who turns 53 in August, previously competed for the United States at the 1992, 1996, 2000 and 2004 Olympics. He's one of four repeat Olympians on this year's team. Ellison, 19, is the only newcomer and led in total ranking points.

Lorig represented the former Soviet Union in 1992 as part of the Unified Team, then competed for the Georgian national team in 1996 and 2000.