TRILLIUM — A WOMEN'S ONLY EVENT
- Date
- July 12, 2026
- Location
- Centennial Quarry, Sylvania, OH
- Distance
- TRIATHLON · DUATHLON · Triathlon Relay & more
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
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
87°
Typical Low
64°
Chance of Rain
31%
Based on US Climate Normals data from Toledo Express Ap, 10 mi from the venue.
Host City
About Sylvania, OH
Population
19,038
as of 2023
Elevation
663 ft
Nearest Airport
TOL
Eugene F. Kranz Toledo Express Airport · 10 mi
Major Hub
DTW
Detroit Metropolitan Wayne County Airport · 39 mi
Time Zone
Eastern Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at TRILLIUM — A WOMEN'S ONLY EVENT, put it on the calendar, and turn “someday” into a start date.
34
Days to train
- Race
- TRILLIUM — A WOMEN'S ONLY EVENT
- Date
- July 12, 2026
- Location
- Centennial Quarry, Sylvania, OH
Coming Up
More Running races near Sylvania, OH
DAVE'S TRAINING SERIES • 2026
Less than a mile away
Springfield Township Firecracker 5K Run/Walk
5K
6 miles away
Women's Distance Festival 5K Run/Walk
5K
Less than a mile away
DAVE'S OH-MI 8K & 5K presented by Whetro Wealth Management
8K · 5K
Less than a mile away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the TRILLIUM — A WOMEN'S ONLY EVENT?
- TRILLIUM — A WOMEN'S ONLY EVENT is a running race held in Sylvania, Ohio on July 12, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the TRILLIUM — A WOMEN'S ONLY EVENT?
- Sunday, July 12, 2026 in Sylvania, Ohio at Centennial Quarry, Sylvania, OH. Check the event page for exact start times and wave schedules.
- How do I register for the TRILLIUM — A WOMEN'S ONLY EVENT?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
TRILLIUM — A WOMEN'S ONLY EVENT
Jul 12, 2026