Denver Colfax Marathon Announces 2025 Race Season Sponsors

April 24, 2025

Denver, CO (April 24, 2025) /ENDURANCE SPORTSWIRE/  – The Denver Colfax Marathon, presented by Cigna Healthcare, is proud to announce their 2025 race season sponsor line up ahead of its spring race weekend in the Mile High. Denver’s only marathon weekend will take place May 16 – 18th, 2025. The marathon welcomes back several returning sponsors, and they are also bringing new partnerships to the race, taking the runner experience to the next level.

“Our sponsors make this race weekend a reality,” said Andrea Dowdy, CEO of the Denver Colfax Marathon. “We are grateful to have an incredible team of partners that bring energy and excitement to our event each year.”

Earlier this year, the marathon welcomed Cigna Healthcare as the title sponsor of its race for the fourth year, with a focus on health and community. Cigna Healthcare’s partnership not only supports Denver’s largest running event of the year, but it also empowers thousands of girls in the Girls on the Run of the Rockies program. The company will once again sponsor the girls in the program by offering a complimentary entry for them to run in the marathon race weekend.

Walker & Dunlop also returned to sponsor the marathon’s Charity Partners Program and Common Spirit Health will once again give runners complimentary racecourse and finish line photos throughout the race weekend. Other key returning sponsors include Honey Stinger, Celsius, Aquafina, Gatorade, Michelob Ultra, Chevron, Quantum Fiber and Visit Denver.

New partnerships this race season include ASICS as the official shoe sponsor of the marathon, Phillips 66, Ovintiv, Denver International Airport and Turkish Airlines.

“Each sponsor plays a critical role in ensuring our participants have a memorable race experience,” Dowdy said. “This race belongs to our community and our dedicated sponsors keep taking our yearly tradition to the next level with their continued support.”

The Denver Colfax Marathon features eight races over two days and has always been known for its unique entertainment and spectacular scenery along each racecourse. Each race highlights the city’s incredible mountain views and landmarks, giving runners an experience of running the Denver skyline.

Registration is open and ongoing for the 2025 Denver Colfax Marathon. The marathon is expecting more than 25,000 runners in the Mile High for its race weekend this May. Please visit www.runcolfax.org to register for a race.