By Matt Hardy Both the men’s and women’s London Marathon races were won by maiden victors today as Kenya’s Amos Kipruto and Ethiopia’s Yalemzerf Yehualaw claimed inaugural titles on the Mall this afternoon. In one of the biggest marathons on the circuit – which has seen 42,000 mass participants – the African duo managed to break away in the latter stages to win the 26.2 mile race. In the women’s elite race, Yehualaw become the youngest ever London Marathon winner with a time of two hours, 17 minutes and 26 seconds – the third quickest London Marathon time in history. Joyciline Jepkosgei came i…