Sunday's Zydeco Marathon may affect traffic in Lafayette Zydeco Marathon / Lafayette Police Dept and last updated 2021-03-11 10:16:33-05 The Zydeco Marathon will take place this Sunday, March 14, in Lafayette. Ahead of the race, Lafayette Police advised residents that the event may affect traffic in several areas. The marathon, which will feature a half marathon of 13.1 miles and a full marathon of 26.2 miles, begins at 7:00 am at Jefferson Street in Downtown Lafayette. The race will go through the Saint Streets, Cajundome, Downtown Lafayette, Freetown neighborhoods, ULL's campus, the Oil Center, and Bendel Gardens neighborhood. See the full schedule and affected streets: