Erin Go Bragh 7.77k

Erin Go Bragh 7.77k is held in Westminster, Colorado, on March 13, 2027, with a single format: a 7.77-kilometer road race (about 4.8 miles) starting at 9:30 AM. The odd distance and the name are both nods to St. Patrick's Day, and no elevation figure is published for the route.

An off-standard distance is oddly freeing, since there is no personal best to defend and no equivalent time to chase — you simply run it by feel. In practice, 4.8 miles sits between a 5K and a 10K, so pace it closer to your 10K effort than your 5K one and keep something for the final mile. Anyone comfortable running 30 to 45 minutes can finish it. Bear in mind too that Westminster sits along Colorado's Front Range at altitude, so visitors from sea level should expect to run a little slower than usual.