Jamaican sprinters Usain Bolt and Yohan Blake both ran meet records in Zurich this evening.
In windy and rainy conditions, Olympic champion Bolt ran 19.66s in the 200m - the fastest time ever seen in Zurich.
In the 100m, American Tyson Gay was disqualified for a false start before Blake ran 9.76s.
In the women's 100m, Olympic champion Shelly-Ann Fraser beat Carmelita Jeter after losing to the American in two races since London.
Meanwhile, there was a surprise defeat for one Olympic champion though. 800m world-record holder David Rudisha came second after going out too quickly on the first lap.
He said afterwards: "My legs felt tired and I cannot run good if the weather is not good.
"I hoped for a fast race here and I'm a little disappointed."
The Diamond League meeting was the last event of the season for many athletes.
