If there was ever any doubt that the obstacle racing season was in full swing this weekend with over 50 races around the world happening at the same time put all doubts to rest. Both Spartan Race and Tough Mudder were in three different locations over the weekend as well as all the other major American series racing around the country. Internationally, XMan Race Series was in Toronto, Toughest in Sweden, Rat Race Dirty Weekend in the United Kingdom and more. Mother's Day Weekend did not stop many of the top athletes around the world from toeing the line. We bring you some of the highlights from the weekend in this week's Last Week in OCR.