The 18-year-old American will kick off the meet, held in Eugene, Ore., with Thursday’s 3000m.
Rupp broke his old U.S. mark of 26:48.00 with a solo last 800m in 1:57.
Mary Cain, U.S. 1,500m champion, withdraws with a calf injury.
Mary Cain wins women's 1500m final for second-straight year.
17-year-old Mary Cain wins women's Wanamaker Mile.
Bernard Lagat going after American, world records in rarely run 2,000m event.
The 17-year-old broke her own world junior record in the 1000m.
Also competing will be Alan Webb, who is retiring from professional running to focus on triathlon