Lake Springfield Triathlon
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Event overview
The Lake Springfield Triathlon takes place on Saturday, July 25, 2026, in Springfield, Illinois. The venue at 100 Long Bay Lane features a usually calm lake swim, a flat, fast bike course, and a flat, shady run. Multiple race formats are offered, including sprint, Olympic and half distances, aquabike options, Athena and Clydesdale divisions, high school and relay events.
Event options and registration
Event fees listed on the registration page include examples such as Sprint Individual Tri for $115, Olympic Individual Tri for $125, Half Individual Tri for $195, and Half Relay Tri for $275. Many events show available spots; some relays have only a few spots remaining. Registration prices increase after February 25, 2026 at 11:59pm CST. Age eligibility is specified per event, for example the Sprint High School Tri is open to ages 14-18 while most other events are open to ages 14 and older.
Venue and race procedures
The course area is described as friendly with notable scenery along the bike and run routes. All athletes must show a photo ID and pick up their own race packet; no exceptions are allowed. The event listing includes directions to the 100 Long Bay Lane location in Springfield, IL 62712. Visit the organization's website for the most recent information.
