
2026 Outdoor X12 Endurance Run & Ruck is a running and rucking race on October 3, 2026 in Dayton, OH, with an entry fee of $60.
From the Organizer
THE RACE
The Outdoor Experience 12 Hour Race (affectionately known as the OX12) is produced in collaboration with Five Rivers Metroparks and the Subaru Outdoor Experience.
THE COURSE
ADDITIONAL COURSE INFORMATION
Events
Weather
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
72°
Typical Low
49°
Chance of Rain
28%
Based on US Climate Normals data from Dayton Mcd, 4 mi from the venue.
Host City
Population
136,741
as of 2023
City Elevation
744 ft
Nearest Airport
DAY
James M. Cox Dayton International Airport · 11 mi
Major Hub
CVG
Cincinnati Northern Kentucky International Airport · 54 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
Every finish line starts with a single decision. Claim your spot at 2026 Outdoor X12 Endurance Run & Ruck, put it on the calendar, and turn “someday” into a start date.
72
Days to train
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From Endurance Grid
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Covering a distance on foot under a weighted rucksack — from timed solo challenges to longer team events.
Coming Up
5k for Kelli
5 miles away
ORRRC Lou Cox at DeWeese Park 5k
4 miles away
26th Annual African American Wellness Walk: Moving Hearts & Soles
4 miles away
HOPE...It's a Beach Thing 5K Walk/Run
4 miles away
Plan your trip
Coming from out of town? There's more to Dayton than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to DaytonFrequently Asked Questions (FAQs)
2026 Outdoor X12 Endurance Run & Ruck
Oct 3, 2026