The American sprinter Tyson Gay emerged from the giant shadow cast by Usain Bolt to lead the United States' domination of the British Grand Prix meeting at Gateshead.
Gay has trailed Bolt over recent months and the Olympic and world champion's decision not to compete in Gateshead ensured an easy win for the American in the 100 metres.
On a damp track and running into a headwind, he clocked 10.15 seconds.
At this month's world athletics championships in Berlin, Gay ran the third-fastest 100 metres time ever (9.71 seconds) but was good enough only for second place behind Bolt's stunning world record of 9.58.
LaShawn Merritt won the men's 400, Allyson Felix the women's 200, while other American winners included Nick Symmonds (800 metres), David Payne (110 hurdles), Derek Miles (pole vault), Leonel Manzano (1500) and, in the women's events, Christin Wurth-Thomas (800) and Carmelita Jeter (100).