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370 Lakeside Park 5K
August 17, 2025 @ 4:30 am - 4:00 pm
Join us for the 5th annual USAT sanctioned 370 Lakeside Triathlon! This race begins with a beautiful beach start at 370 Lakeside Park. Enjoy the lake swim, scenic fast bike course on the country roads of St. Charles County and finish your race with a run on the flat park trails. We offer a variety of race options from a 5k run, super sprint or sprint for newbies, up to half distance!
