The weather set up for fast times at this year’s Boston Marathon , with temperatures in the low 40s and a slight tailwind. And the elite field absolutely crushed it on Marathon Monday. John Korir set a course record . Zouhair Talbi shattered the American record . And Sharon Lokedi defended her title . The big winner of the day, as far as the RW gear team figures, was Asics, with seven runners wearing Metaspeeds to get on this list of the 10 fastest. But does Nike have something special cooking in the kitchen? Four runners wore “Dev 164” prototypes, which we believe to be the next Alphafly. Here are the running shoes that were on the feet of the fastest marathoners. WOMEN 1) Under Armour Velociti Elite 3 “Sharon Lokedi” Sharon Lokedi, 2:18:51 The back-to-back champ (pictured above) did it in style, wearing her own signature colorway that she helped design. 2) Asics Metaspeed Ray Loice Chemnung, 2:19:35 This is a new addition to the Metaspeed lineup .…