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| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| DUATHLON | Duathlon | Jul 11, 20278:00 AM | $85$90 after May 22, 2027 | – |
| Duathlon Relay | DuathlonRelay or team | Jul 11, 20278:00 AM | $35$45 after Jun 25, 2027 | – |
| TRIATHLON | Sprint TriathlonOpen water swim | Jul 11, 20278:00 AM | $85$90 after May 22, 2027 | – |
| Triathlon Relay | Sprint TriathlonRelay or teamOpen water swim | Jul 11, 20278:00 AM | $35$45 after Jun 25, 2027 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Online registration closes Jul 11, 2027, unless the race fills first.
Sunrise on race morning is at about 6:09 AM, and the DUATHLON starts at 8:00 AM. The start sits about 660 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
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.
National lists computed from results, entry fees, course maps and water temperatures; they refresh through the day.
Aggregated from official results (DRS Timing) for TRILLIUM — A WOMEN'S ONLY EVENT. Individual finisher names are not stored here.
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.
| Age | Women | Men |
|---|---|---|
| Under 20 | 1:21:34 | n/a |
| 20-29 | 1:16:03 | n/a |
| 30-39 | 1:17:24 | n/a |
| 40-49 | 1:25:12 | n/a |
| 50-59 | 1:16:31 | n/a |
| 60-69 | 1:21:26 | n/a |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
Where a finish time would have placed in 2026.
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.
Compared with a typical sprint triathlon in Ohio, the median swim here was 3:50 faster, the bike 1:48 slower and the run 1:31 slower (swim lengths differ from race to race).
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Swim | 9:15 | 10:31 | 12:02 | 13:38+ |
| T1 | 1:06 | 1:28 | 1:57 | 2:37+ |
| Bike | 40:26 | 43:50 | 48:13 | 54:40+ |
| T2 | 0:33 | 0:46 | 1:11 | 1:48+ |
| Run | 24:31 | 27:13 | 30:50 | 34:57+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
Compared with a typical duathlon in Ohio, the median bike here was 3:54 slower.
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| T1 | 0:41 | 0:47 | 1:06 | 1:23+ |
| Bike | 42:40 | 47:38 | 50:36 | 55:50+ |
| T2 | 0:34 | 0:50 | 1:30 | 1:47+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
Down 7 percent since 2025.
All events combined, from official results.
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.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2026 | 131 (-8%) | 1:36:41 | under 1:17:39 | 59:10 |
| 2025 | 143 | 1:36:21 | under 1:19:08 | 1:09:35 |
From each year's official results for the Sprint Triathlon; virtual options are left out.
About average for Ohio sprint triathlons
The fastest quarter of the 2026 sprint triathlon field finished under 1:26:00, against 1:25:56 in a typical Ohio sprint triathlon, so times here are about average.
Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.
Around July 11 the day usually runs from 66°F at dawn to 84°F in the afternoon, with measurable rain on about 31% of days. Cold snaps dip to 60°F and hot years reach 91°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
What the organizers of TRILLIUM — A WOMEN'S ONLY EVENT cover on their registration page, in brief.
Schedule and packet pickup
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
View Course Maps Here.
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
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…
Organize this race? Add details or a correction
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