2026 Semper Fi 5k/Half

Lace up for an inspiring journey at the 2026 Semper Fi 5k/Half on October 24, 2026, in the historic heart of Washington, District of Columbia. This event offers both a Half Marathon (13.1M) and a 5K distance, inviting runners and walkers of all levels to participate. The courses are renowned for being scenic and flat, primarily utilizing the picturesque Chesapeake & Ohio Canal path, offering a refreshing escape with beautiful views near the Nation's Capital. Typical race day conditions in late October are ideal for running, with comfortable highs around 66°F and lows around 50°F, accompanied by a low chance of precipitation.

The Semper Fi 5k/Half is more than just a race; it's an opportunity to give back. A portion of the proceeds from this event benefits the Semper Fi Fund, providing vital financial assistance and lifetime support to post-9/11 wounded, critically ill, and injured members of all branches of the U.S. Armed Forces and their families. This inclusive event welcomes walkers, strollers, and even leashed pets, fostering a community atmosphere where everyone can contribute to a meaningful cause while enjoying a well-organized race experience.

Runners can anticipate a rewarding experience, complete with a finisher's medal and a technical event shirt. Half Marathon participants often also receive a finisher's blanket. Packet pickup is conveniently available at the event one hour before the race begins. The start and finish lines are located in Georgetown, generally near the Potomac Boat Club, with parking readily available along Water Street and in nearby garages. Join fellow participants for a memorable run through Georgetown, celebrating fitness and supporting those who have served our nation.