Time Travel Half-Marathon/5K/10K - Denver

Time Travel Half-Marathon/5K/10K - Denver is held in Denver, Colorado, on January 30, 2027. Everything starts at 9 a.m.: a 100 meter kids dash, the one mile, the 5K, the 10K and the half marathon (13.1 miles).

Denver sits around a mile above sea level, so runners coming from lower ground should expect a familiar pace to feel harder and race on effort rather than on the watch. For the half, twelve weeks of consistent running with a weekly long run is the usual preparation; the 10K and the 5K ask far less and work well as a season opener. A 9 a.m. start is late enough that you can eat a normal breakfast and warm up properly, which is worth more than it sounds on a winter morning.