
From the Organizer
Semiquincentennial Endurance Series
A Virtual Endurance Challenge Honoring America's 250th Anniversary
Whether you're chasing a personal best, earning an extra helping of barbecue, or simply looking for a legitimate reason to escape the crowded vacation rental for a little while, there's a challenge for you.
Choose Your Challenge:
• 25K Virtual Challenge
• 250 Minute Challenge
• 250K Team Challenge
Run, walk, hike, ruck wherever you choose or complete all challenges. Complete your challenge anytime during event week. All races are virtual and can be completed anywhere on any surface you choose.
Registration Special: Save $10 on the official Semiquincentennial Endurance Series t-shirt when you add it during registration. Special discount is only available when the shirt is added as part of your race registration.
July 4–10, 2026
Honor History. Challenge Yourself. Keep Your Peace.
Then, go back for seconds.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Semiquincentennial Endurance Series, put it on the calendar, and turn “someday” into a start date.
Coming Up
Kids Run Columbus Training Program
A Race to Remember 5K
4.01k Family Color Run by The Investment Centre at CBC Bank
Medal Madness 5K, 10K, & 13.1M at Augusta, GA (26)
From Endurance Grid
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.
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)
Semiquincentennial Endurance Series
Jul 4, 2026