Last weekend's Ottawa Marathon was the final IAAF gold label marathon of the spring season, marking a lull until July's Gold Coast Airport Marathon and August's London World Championships . Gold label events are required to recruit elite athletes of a variety of nationalities under specific time standards, currently 2:10:00 for men and 2:28:00 for women in the marathon, in order to earn that label. Nike's Breaking2 experiment aside, the Tokyo Marathon men's race was the best of the season, led by Wilson Kipsang 's year-leading 2:03:58 Japanese all-comers record. Mary Keitany 's 2:17:01 women-only world record likewise marked the London Marathon as the top women's race so far this year. But looking beyond just the fastest winning time, what were the best marathons in the first five months of 2017 by depth of quality? The races with the most gold label performances, the standard that the IAAF has decreed as the top level of the sport? Below are the ...
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