Trillium Women's Only Event
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TRILLIUM: A WOMEN'S ONLY EVENT
Trillium is a women only triathlon and duathlon held on July 12, 2026 at Centennial Quarry in Sylvania, Ohio. The event has been staged since 2005 and offers individual and relay formats, including a two at a time time trial start from the quarry steps.
Race distances and formats include:
- Triathlon: 400 meter swim, 11 mile bike, 5K run
- Duathlon: 1 mile run, 11 mile bike, 3.1 mile run
- Triathlon Relay: 3 member team, swim then bike then run
- Duathlon Relay: 2 member team, one person runs both segments and the other bikes
Relay composition is specified by discipline rather than by distance. Registration opens 27 January 2026. Fees listed for the event are $85.00 for individual triathlon and duathlon entries and $35.00 for relay entries. Registration deadlines vary by event and fall between 22 May 2026 and 25 June 2026. Visit the organization's website for the most recent information.
