TRILLIUM — A WOMEN'S ONLY EVENT logo

TRILLIUM — A WOMEN'S ONLY EVENT

Date
Last held Jul 12, 2026, next date to be announced
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Official race website

Start location and course

Centennial Quarry, Sylvania, OH 43560

The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.

TRIATHLON

131
finishers
1:36:41
median (6:45 /mi)
59:10
winning time
100% / 0%
women / men
median 1:36:411:05:162:31:57
Finish times, fastest to slowest. Each bar is a slice of the field; the dashed line is the median.

DUATHLON

33
finishers
1:42:01
median (6:45 /mi)
1:06:07
winning time
100% / 0%
women / men

Duathlon Relay

7
finishers
1:34:41
median (6:16 /mi)
1:14:22
winning time
–
women / men

Aggregated from official results (DRS Timing) for TRILLIUM — A WOMEN'S ONLY EVENT. Individual finisher names are not stored here.

How fast do you need to be at TRILLIUM — A WOMEN'S ONLY EVENT?

At the 2026 TRIATHLON, the fastest tenth finished in 1:17:39 or better, the top quarter in 1:26:00, and half the field in 1:36:41; the last tenth came in after 1:57:27.

At the 2026 DUATHLON, the fastest tenth finished in 1:22:10 or better, the top quarter in 1:26:57, and half the field in 1:42:01; the last tenth came in after 2:10:39.

At the 2026 Duathlon Relay, the fastest tenth finished in 1:21:37 or better, the top quarter in 1:28:39, and half the field in 1:34:41; the last tenth came in after 1:47:19.

Third place by age group, 2026 TRIATHLON
AgeWomenMen
Under 201:21:34n/a
20-291:16:03n/a
30-391:17:24n/a
40-491:25:12n/a
50-591:16:31n/a
60-691:21:26n/a

Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.

What would my time get me?

Where a finish time would have placed in 2026.

Swim, bike and run splits at TRILLIUM — A WOMEN'S ONLY EVENT

At the 2026 TRIATHLON, the bike decided the most: the middle of the field lost about 8:21 to the top quarter there, 49% of the gap across the three legs.

2026 TRIATHLON, 131 finishers
LegTop 10%Top 25%MedianSlowest 25%
Swim9:1510:3112:0213:38+
T11:061:281:572:37+
Bike40:2643:5048:1354:40+
T20:330:461:111:48+
Run24:3127:1330:5034:57+

Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.

2026 DUATHLON, 33 finishers
LegTop 10%Top 25%MedianSlowest 25%
T10:410:471:061:23+
Bike42:4047:3850:3655:50+
T20:340:501:301:47+

Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.

Finishers by year

Down 7 percent since 2025.

All events combined, from official results.

TRILLIUM — A WOMEN'S ONLY EVENT Sprint Triathlon year by year

From 2025 to 2026, the field went from 143 to 131 finishers, and the median time rose from 1:36:21 to 1:36:41.

YearFinishersMedianFastest tenthWinner
2026131 (-8%)1:36:41under 1:17:3959:10
20251431:36:21under 1:19:081:09:35

From each year's official results for the Sprint Triathlon; virtual options are left out.

From the race's page

What the organizers of TRILLIUM — A WOMEN'S ONLY EVENT cover on their registration page, in brief.

Schedule and packet pickup

Athlete Guide

The hard part is over. You signed up. You prepared. Now it is race time. This guide is here to assist you on some of the details of this event. What do I need to bring to pick up my race packet? Great question. Glad you asked. For USAT…

Course

Course Maps

View Course Maps Here.

Awards

Awards

Duathlon Awards. Overall Winner. Overall Masters. Age Groups 3 Deep: 19 and Under, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80+. Triathlon Awards. Overall Winner. Overall Masters. Age Groups 3 Deep: 19 and Under, 20-24, 25-29, 30-34…

Rules and FAQ

REGISTRATION POLICY

We know unexpected things happen that may change your ability to attend a race, so we make it easy for registered participants to manage their entry with multiple options. Your chosen option must be initiated and approved at least 14 days…

Full details on the race's RunSignup page

Race details

Where
Centennial Quarry, Sylvania, OH 43560Map
Course
Road
Distances
Sprint Triathlon, Duathlon
Editions
2026 (Jul 12, 2026), 2025 (Jul 13, 2025), 2024 (Jul 14, 2024), 2023 (Jul 15, 2023), 2022 (Jul 9, 2022), 2021 (Jul 10, 2021)
Status
The next edition has not been announced yet. Past events: Dri-Tri, Triathlon, Duathlon, Triathlon, Duathlon.

Organize this race? Add details or a correction

Quick answers

When is TRILLIUM — A WOMEN'S ONLY EVENT?
The next date has not been announced.
How much does it cost?
See the registration page for current pricing.
What distances are offered?
Sprint Triathlon, Duathlon.
How big is it, and how fast?
In 2026, 131 athletes finished the TRIATHLON; the median finish was 1:36:41 and the winner finished in 59:10.
Where does it start?
Centennial Quarry, Sylvania, OH 43560.

From the organizers

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

Read the full description on RunSignup