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Running

2026 Outdoor X12 Endurance Run & Ruck

Date
October 3, 2026
Distance
2026 Outdoor X12 Hours Endurance Run · 2026 Outdoor X12 Hours Endurance RUCK
Register →

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.

  • 2.7+ mile loop course and flat!
  • Finisher Medals for those that travel upon the course for the full 12 hours.

THE COURSE

  • 4% bike path, 96% grass/trail double track.

ADDITIONAL COURSE INFORMATION

Events

2026 Outdoor X12 Hours Endurance Run7 AMRegister →
2026 Outdoor X12 Hours Endurance RUCK7 AMRegister →

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

72°

Typical Low

49°

Chance of Rain

28%

Based on US Climate Normals data from Dayton Mcd, 2 mi from the venue.

Sunrise 7:35 AMSunset 7:18 PMDaylight 11h 42m

Host City

About Dayton, OH

Population

136,741

as of 2023

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

What Are You
Waiting For?

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.

117

Days to train

Race
2026 Outdoor X12 Endurance Run & Ruck
Date
October 3, 2026

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.

Read the Guide

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 2026 Outdoor X12 Endurance Run & Ruck?
2026 Outdoor X12 Endurance Run & Ruck is a running race held in Dayton, Ohio on October 3, 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 2026 Outdoor X12 Endurance Run & Ruck?
Saturday, October 3, 2026 in Dayton, Ohio at 1385 Harshman Road, Dayton, OH. Check the event page for exact start times and wave schedules.
How do I register for the 2026 Outdoor X12 Endurance Run & Ruck?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

2026 Outdoor X12 Endurance Run & Ruck

Oct 3, 2026

Register →