Britain’s Adelle Tracey beat compatriot Jemma Reekie by one hundredth of a second to win the ladies’s 800m on the USATF Grand Prix.
Tracey clocked two minutes 03.25 seconds in Eugene, Oregon.
Laura Muir gained the ladies’s 1500m in 4 minutes 01.54 seconds, ending greater than two seconds away from second-placed Helen Schlachtenhaufen.
“I’ve never done a race gun to tape by myself. I know I’m in really good shape so I’m pleased,” stated Muir.
“I wanted to try and run really hard right from the start. The wind was quite tough working by myself.”
Two-time British Olympian Eilish McColgan gained the ladies’s 5,000m in 14 minutes 52.44 seconds, whereas American Isaac Updike ran the quickest time in the world this 12 months to win the lads’s 3,000m steeplechase in a personal-best eight minutes 17.74 seconds.
American six-time Olympic champion and 13-time world champion Allyson Felix, 35, completed seventh in the ladies’s 100m in 11.30 seconds, as she goals for Olympic qualification in the 200m.
American Trayvon Bromell gained the lads’s 100m in 10.01 seconds, with compatriot Noah Lyles second in 10.17.
Reigning Olympic champion Shaunae Miller-Uibo of the Bahamas ran a world-leading time of 49.08 seconds to win the ladies’s 400m.