Scotland's Eilidh Child set a personal best in the 400m at the Anniversary Games in London despite finishing eighth.
Child finished in 51:83 seconds in a race won by Christine Ohuruogu in 50:00.
Scottish runner Jake Wightman finishes 17th in the Emsley Carr Mile in a time of 4:00.62
"Gutted with run today. Feel in much better shape than that, but legs were having none of it," he said on Twitter.
On Friday, Eilish McColgan also ran a personal best of 8:53.66 in the 3000m.