The Arlington Triathlon is a youth triathlon for 7-15 yr. olds. In its 4th year, the swim-bike-run race is part of the USA Triathlon Mid-Atlantic Youth Triathlon Series. The event also is an official U.S. Olympic Committee “Olympic Day” event, one of hundreds of events in 160+ countries. The race is produced by Triathlon Family USA, Inc., which also manages the Arlington Triathlon Club, the county’s groundbreaking, school-based triathlon training program. This fun, fast triathlon features a pool swim, bike laps on closed roads, and a quick track run to the finish.