VALENCIA, Dec 7 (Reuters) - Kenyan runner John Korir silenced his doubters in spectacular fashion on Sunday by claiming his second marathon victory of the season at Valencia while proving the "Korir name" is far from fading.

Korir, who endured the disappointment of dropping out during the Chicago Marathon in October, bounced back with a vengeance to win in 2:02:24, bettering his personal best by 20 seconds, a feat he achieved with a negative split.