TRILLIUM — A WOMEN'S ONLY EVENT

Sun, Jul 12, 2026, 8:00 AM EDT

Location: Sylvania, OH; Centennial Quarry, 5773 Centennial Rd., 43560
Type: DUATHLON

Vibe analysis coming soon

Course feel, difficulty, and community fit are being added to this listing. Check back, and always confirm details on the official registration page.

At a glance

Great for

Women’s Focus

Auto-drafted from the public listing — confirm details on the official event page before signing up.

Distances & registration

4 options

Registration for all distances is through the official signup link above.

14.34 Miles
Sun, Jul 12, 8:00 AM EDT · From $91.60
Opens Jan 26, 2026, 7:00 PM EST · Closes May 22, 2026, 7:59 PM EDT
14.34 Miles
Sun, Jul 12, 8:00 AM EDT · From $38.60
Opens Jan 26, 2026, 7:00 PM EST · Closes Jun 25, 2026, 7:59 PM EDT
15.1 Miles
Sun, Jul 12, 8:00 AM EDT · From $91.60
Opens Jan 26, 2026, 7:00 PM EST · Closes May 22, 2026, 7:59 PM EDT

+ 1 more option

15.1 Miles
Sun, Jul 12, 8:00 AM EDT · From $38.60
Opens Jan 26, 2026, 7:00 PM EST · Closes Jun 24, 2026, 7:59 PM EDT

Vibe Check

Steady Effort

warm-day exposure

Warm season

Based on terrain, weather, and distance data.

The course

From the organizer

Trillium — A Women’s Only Triathlon and Duathlon

Since 2005, this women’s only event has focused on empowering the competitive spirit in all women. Trillium is designed for women of all ages and athletic ability — whether new to multi-sport, a casual swimmer/biker/runner, or an experienced athlete. This weekend is all about you.

RACE OPTIONS

Triathlon → 400 Meter Swim, 11 Mile Bike, 5K (3.1 mile) Run Duathlon → 1 Mile Run, 11 Mile Bike, 3.1 Mile Run Triathlon Relay → 3 Member team where the first person swims, the second person bikes and the third person runs Duathlon Relay → 2 Member team where one person does both runs and the second person bikes Triathlon Time Trial Start → Start two-at-a-time on the steps of the Centennial Quarry

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