MONTE CARLO , Monaco -- Russia 's Yelena Isinbayeva has broken her own world record in the women 's pole vault with a leap of 5.04 meters as she warmed up for her Olympic defense . Isinbayeva broke her own women 's pole vault world record on her third attempt in Monaco . The record came at the Monaco Grand Prix on Tuesday on her third and final attempt at the height . Her previous record of 5.03 meters was set in Rome on July 11 . Isinbayeva is the reigning Olympic and world champion . Asafa Powell claimed his third 100 meters success inside a week when he raced clear in his season-best time of 9.82 seconds . Powell shaved 0.06sec off his previous season-best of 9.88 , set last Tuesday in Stockholm , where he saw off fellow Jamaican and world record holder Usain Bolt . On Tuesday Powell was too hot for Davis Patton of the U.S. ( 9.98 ) and Nesta Carter of Jamaica ( 10.02 ) , the fourth best time of the season all the more impressive given the calm conditions . `` I am very happy , '' said Powell . `` I feel great , very fresh . I 've got a world record in my legs . I am very confident . My goal is to be consistent . '' A tough headwind had compromised Powell 's attempts to have a tilt at Bolt 's mark although he still cruised to a weekend victory at the London Grand Prix at Crystal Palace in 9.94sec . Other Tuesday highlights saw Jamaica 's Melaine Walker set a year mark in the women 's 400m hurdles in clocking 53.48 sec . Walker , who shattered her own personal best of 54.14 in the process , will hope her performance augurs well for the Beijing Games , where Aussie two-time world champion Jana Rawlinson will not be competing owing to a toe injury . Kenyan Daniel Kipchirchir Komen also set a year best mark in the 1500m , crossing the line in 3 min 31.49sec to take 0.08sec off compatriot Augustine Kiprono Choge 's June 1 showing in Berlin . The 23-year-old 's win tempered the disappointment of missing out on an Olympic berth . Britain 's Martyn Rooney also improved his personal best in the 400 meters for the second successive race , following up his win in the London Grand Prix with victory in 44.72 seconds . The Monaco Grand Prix was the last major international track and field meeting before the Beijing Olympics which start on August 8 .
Russia 's Yelena Isinbayeva breaks her own women 's world pole vault record . Comment: Jamaican Asafa Powell wins third 100 meters race in a week in 9.82 seconds .