Utah Youth Indoor Football League.11 man Recreational football for ages 8 to 16. Played on astro turf indoors. Similar to fall outdoor youth football programs, high school football rules. Gremlins, Pee Wee, and Midgets play on a 50 yd field and Bantam and Juniors play on 100 yd field. UYIFL is a non-profit Utah Corp.