Denver, CO

COLFAX MARATHON PARTNERSHIP INC

EIN 87-0737183

Education & Youth Development Youth Sports & Recreation Children & youth

Mission

TO CONDUCT THE ANNUAL COLFAX MARATHON TO PROVIDE A PLATFORM FOR SHOWCASING THE REVITALIZATION OF COLFAX AVENUE AND SUPPORT LOCAL CHARITABLE ORGANIZATIONS

IRS-recognized 501(c)(3) public charity Contributions are tax-deductible

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About COLFAX MARATHON PARTNERSHIP INC

Colfax Marathon Partnership Inc is the nonprofit organizer of the Denver Colfax Marathon race weekend and related events. The organization operates a multi-race weekend (marathon, half marathon, 10-miler, relay and 5K) and runs a Charity Partners program that gives local nonprofits a platform to fundraise and raise awareness. In recent years the organization has reported multi-million dollar program-service revenues and positive net assets while maintaining an active calendar of events, charity partnerships, youth programming (Colfax Fly Feet) and sponsorship relationships that support race operations and community giving.

Notable achievements

Longstanding, multi-event race weekend

Operates Denver Colfax Marathon weekend (marathon, half marathon, Urban 10 Miler, Marathon Relay and Colfax 5K), maintaining an annual, city-wide running festival that draws thousands of participants and spectators.

Extensive Charity Partners program

Runs a Charity Partners program that has included more than 100 local and regional nonprofit partners, providing a fundraising platform, free outreach opportunities and promotional support for participating charities.

Strong recent financial scale

Reported program-service driven revenue in the multi‑million dollar range with net assets in excess of one million dollars (most recent fiscal-year reporting shows revenue of approximately $2.8M and net assets of about $1.34M), reflecting ongoing event operations and charitable-platform activity.

At a glance

Total assets: $1.6M
Annual revenue: $2.8M
Tax status: 501(c)(3)Public charity
EIN: 87-0737183
Location: Denver, CO
Website: runcolfax.org
On Mahalo since: September 2026

Financial figures from the IRS Business Master File, the IRS’s registry of tax-exempt organizations.

Recognition

Rated by Charity Navigator (three‑star / mid-level review) as an established 501(c)(3) organizer of the Colfax Marathon.

Featured in endurance-sports and local media coverage for its Charity Partners program and race-season sponsorships.

Maintains public IRS Form 990 filings and is listed in nonprofit data services as an active tax‑exempt organization (tax-exempt since 2006).

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