British high-jumper Robbie Grabarz claimed the Diamond League title in Zurich on Thursday night.
The Olympic bronze medallist arrived in Switzerland leading the standings ahead of Jesse Williams of the United States.
However, Williams failed to go over in two attempts at 2.28 metres and also missed his only try at 2.31m, while Grabarz cleared 2.28m on his second go to win the 40,000 US dollars prize money.
Grabarz did not win the competition, however, failing to clear a height of 2.31m to finish behind Russian Ivan Ukhov.
"I really don't believe it quite yet," Grabarz told BBC2 afterwards.
"Three amazing things have happened this year; European champion, an Olympic medal and winning the Diamond League. I'm just so happy.
"There's room for improvement in every competition so I just want to build on this."
Meanwhile, Britain's men's 4x100m relay team, led home by Adam Gemili, also put on a good performance to come home third behind the United States and Jamaica.
There was disappointment for Christine Ohuruogu in the women's 400m, with the Briton finishing last in a race won by American Sanya Richards-Ross.
Hannah England finished a creditable sixth in the 1,500m though, while British compatriot Laura Weightman crossed the finishing line in 13th.