At age 41, Bernard Lagat made his fifth - and most unexpected - Olympics by winning the 5,000-meter final at track trials.
The American record holder was considered a long shot to make the team, but finished in 13 minutes, 35.50 seconds.
Joining him in Rio will be Hassan Mead and Paul Chelimo, who nudged out a sprawling Eric Jenkins by .06 for the last spot.
Galen Rupp held the lead late but faded over the last 800 meters and finished ninth. Rupp has already qualified for the marathon and the 10,000.