In Delhi Half Marathon, Geoffrey Mutai of Kenya emerged victorious in the men's elite category, while 2008 winner Ethiopia's Aselefech Mergia won the title in the women's event.More than 30,000 Delhiites braved a chilly Sunday morning to run at the Marathon. Last year's winner in the men's section, Deriba Merga of Ethiopia pulled out of the event at the last hour due to poor form and injury problem.Mutai, a long distance runner who specialises in road race competitions, faced stiff competition from Ethiopians Lelisa Desisa and first timer Yacob Yarso, who finished second and third respectively.Mutai, ran 59 minutes and 38 Seconds to cover the 21.097 kilometers and pocketed 25,000 US dollars.In the women's event, Mergia led an Ethiopian sweep, winning the race in one hour, eight minutes and 35 seconds.