The Big River Festival of Miles presented by Under Armour is a charity track meet that takes place each spring in Saint Louis, Mo. Events includes a kid's mile, jr. high miles, a masters mens mile, a corporate relay, high school 100s, high school miles and two professional events; a women's 800 and a men's mile. Ticket sales always go to an athlete in need. The men's mile is the premiere event with Leo Manzano setting the meet record of 3:55.29 in 2009.