Ongoing

Science Stride 5K

Boulder Reservoir 5275 Reservoir Rd, Boulder

The Science Stride 5k brings together our community for a common cause: Inspiring the next generation of scientists! This event provides an excellent opportunity for everyone who believes in the …

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Barr Lake Trail Race

Barr Lake State Park (Nature Center) 13401 Picadily Rd, Brighton

This 6th Annual event showcases a course that is our flattest and fastest on the ERS schedule with less than 100' of elevation gain per loop. Runners will start and …