It's an event that brought thousands of people to Corpus Christi this weekend. The 39th annual Beach to Bay Relay Marathon was yet another success this year. It's considered the largest relay marathon in the U.S. and that 26.2 mile stretch began early Saturday morning on Padre Island. Beach to Bay attracts runners from all over the U.S. as well as Kenya, England and Mexico. Over two thousand teams participated..which is more than 15-thousand runners.