Controversial American Justin Gatlin blitzed a high-class 200m field, his winning time of 19.68 seconds the best of 2014 and putting him in the top 10 of all time at Friday's Diamond League meeting in Monaco.
Jamaican Nickel Ashmeade finished second ahead of France's Christophe Lemaitre, with American Tyson Gay in fourth.
Asbel Kiprop failed in his bid to break the 1500 metres world record.
The Kenyan had made no secret of the fact he was targeting Hicham El Guerrouj's 16-year-old mark of three minutes and 26 seconds having run 3mins 27.72secs at the Stade Louis II last year.
Kiprop certainly went for it but paid for his searing early pace in the home straight and was passed by compatriot Silas Kiplagat.
To rub salt in Kiprop's wound, Kiplagat's time of 3:27.64 bettered his fellow Kenyan's mark from 12 months ago.
It was a Kenyan one-two-three, and Roland Kwemoi's time of 3:28.81 in third was a world junior record.
Olympic silver medallist Nijel Amos won a superb 800m race in which five men ran under one minute and 43 seconds.
The Botswana athlete's winning time of 1:42.45 was the 10th fastest of all time and Pierre-Ambroise Bosse ran a French national record in second.
Olympic champion David Rudisha, who is still working his way back to top form after injury, had to settle for fifth place.
In the 110m hurdles, France's Pascal Martinot-Lagarde finally dipped under 13 seconds, winning a high-class race in a time of 12.95, while world champion LaShawn Merritt gave a dominant performance in the 400m.
The two stand-out performances in the women's races on the track came from a pair of Americans, Tori Bowie and Ajee Wilson.
Bowie posted an impressive time of 10.80secs to win the 100m while Wilson handed Kenya's Eunice Sum her first defeat of the season in the 800m.
Ethiopia's Genzebe Dibaba also ran a world-leading time of 14:28.88 to win the 5,000m.
World 400m hurdles champion Zuzana Hejnova ran her first major race of the season after injury but could only finish seventh in a contest won by Commonwealth Games favourite Kaliese Spencer of Jamaica.
In the field, Colombia's Caterine Ibarguen leaped to 15.31m in the triple jump, the fifth longest jump in history and furthest since 2008.
Another high-class men's high jump competition was won by Ukraine's Bohdan Bondarenko with a jump of 2.40m, three centimetres ahead of Mutaz Essa Barshim of Qatar.