Register by 11:59pm on January 29 to beat the price increase for the Colfax Marathon races. Get early bird pricing plus save 20% on merchandise when you register.
Denver's largest running event returned to it's normal spring weekend after two years of cancelations and postponements. While not nearly as large as the record numbers from 2019, this year did draw close to 10,000 people across all the…
Register now to beat the price increase for the Colfax Marathon! Early bird pricing ends January 26. The Denver Colfax Marathon will be held on May 14, and May 15, 2022.
The Colfax Marathon has a new title sponsor and a new look. Cigna, a global health service company, has partnered with marathon for the 2022 race season. This partnership has already taken one of Colorado’s largest race weekends to the next…
Denver's largest running event was cancelled in 2020 and the postponed from it's normal May date to the fall of 2021. With it's return, thousands of runners came out to City Park for the event that includes a marathon, marathon relay, half…
Denver's Colfax Marathon is hosting a Runner's Reunion 5K and 10K in May. The events will take place on the race's typical race weekend. Although the official Colfax Marathon weekend of races has been pushed back until October, citing COVID…
Joseph Gray, Lee Troop, Deborah Conley, Lyndon Ellefson, Alan Lind, and Peter de la Cerda will be inducted into the Colorado Running Half of Fame. The Colorado Running Hall of Fame recognizes Coloradans for remarkable achievement and…
The Colfax Marathon weekend of races will not be held in May, 2021. Due to the impact of COVID, the Colfax Marathon is now scheduled for the weekend of October 16-17, 2021. More details on the weekend schedule and start times will be…
The Colfax Marathon races may have been cancelled in May of 2020 but the race hosted a successful Welcome Back 5K last Saturday to a sold out field. More than 600 runners and walkers finished the 5K at Denver's City Park. Waves kicked off…
Yesterday, the Colfax Marathon officially cancelled the 2020 event. They had been hoping to reschedule the May event into the fall, but were unable to finalize a plan for that to happen.