Bolt went undefeated over 100 m and 200 m in the 2011 season. He began with wins in Rome and Ostrava in May. He ran his first 200 m in over a year in Oslo that June and his time of 19.86 seconds was a world-leading one. Two further 200 m wins came in Paris and Stockholm the following month, as did a 100 m in Monaco, though he was a tenth of a second slower than compatriot Asafa Powell before the world championships.