Organized by the Ridgefield Bicycle Sports Club and sponsored by the Ridgefield Recreation Center, the fifth annual Ridgefield Kids Duathlon will feature three age group races of a run-bike-run sequence, all taking place at Ridgefield Parks & Recreation, Ridgefield, Connecticut. Age groups are 4-6, 7-8, 9-10, 11-14 co-ed. Packet pickup is Sunday, June 10, at the race location from 8 am to 8:45 am. Registration closes at noon on Saturday. No race-day registration.