EDMONTON, Canada Olympic champion Robert Korzeniowski walked a tactical race to clinch a second world 50 kilometers road title on Saturday.

Korzeniowski, the only man to win the walk double at an Olympics, took the lead around the halfway mark, winning in three hours 42.08 -- the fastest time in the world this year.

Spaniard Jesus Angel Garcia, world champion in 1993, won the silver medal in 3:43.07, Reuters said.

Edgar Hernandez of Mexico caused a last minute upset by snatching bronze from Latvia's Olympic silver medalist Aigars Fadejevs in the final 100 meters of the race. Hernandez smashed his personal best by almost 10 minutes, clocking 3:46.12.

Korzeniowski, the 1997 world champion, entered the stadium to the cheers of a large Polish contingent, pumped the air with outstretched arms and jogged a lap of victory.

"This is a great day for me even if I have lots of medals," Korzeniowski said after the race.

"I have won everything that one can dream of, but I still keep dreaming. My next dream is Athens 2004."

The pole said the Olympic 50km would be his last professional, high-level race.