9:00 am - 11:00 am Duck Waddle 5K 2021 May 1, 2021 @ 9:00 am - 11:00 am Duck Waddle 5K 2021 Duck Waddle 5K May 1, 2021 Estes Park, Colorado $25 – $30
8:00 am - 12:00 pm Cinco de Mayo 5K May 2, 2021 @ 8:00 am - 12:00 pm Cinco de Mayo 5K Cinco de Mayo 5K May 2, 2021 Washington Park $25 – $40
2021-05-15 Runner’s Reunion 5K & 10K Runner’s Reunion 5K & 10K May 15, 2021 @ 8:00 am - May 16, 2021 @ 12:00 pm Runner’s Reunion 5K & 10K Runner's Reunion 5K & 10K City Park Denver, CO $30 – $40
7:00 am - 1:30 pm Climb 4 Change 2021 May 22, 2021 @ 7:00 am - 1:30 pm Climb 4 Change 2021 May 22nd, 2021 Miller Complex Castlerock CO $15 – $45
2021-05-29 Taste of Louisville 5K (Virtual) Taste of Louisville 5K (Virtual) May 29, 2021 @ 12:00 am - June 6, 2021 @ 11:30 pm Taste of Louisville 5K (Virtual) Taste of Louisville 5K May 29th-June 6th, 2021 Louisville, Colorado $30
8:00 am - 3:00 pm Memorial Day Run & March May 29, 2021 @ 8:00 am - 3:00 pm Memorial Day Run & March Memorial Day Run & March May 29th, 2021 Colorado Springs, CO $40 – $60
8:00 am - 12:00 pm Petri Dash 5K 2021 June 5, 2021 @ 8:00 am - 12:00 pm Petri Dash 5K 2021 Petri Dash 5K June 5, 2021 Denver, Colorado $40
7:30 am - 11:00 am Flamingo Day 5K June 6, 2021 @ 7:30 am - 11:00 am Flamingo Day 5K June 6th, 2021 Sloans Lake Denver, Colorado $30 – $35