This weekend
Races this weekend in Colorado
28 running races in Colorado this weekend, Oct 3, 2026 and Oct 4, 2026, with start times, distances, and last-minute registration links.
28
upcoming races
Oct 3, 2026
Saturday
Colorado Springs Marathon, Half, 5K, and Kids K
Colorado Springs, Colorado7:00 AM start
from Free
Registerfrom Free
RegisterRim to Rim Royal Gorge Races: 5K Road Run, Trail 8 Mile, Trail Half Marathon
Canon City, Colorado7:30 AM startTrail
from Free
Register
from $50
Registerfrom Free
Registerfrom $80
Register
from $25
Register
from $10
Register
from Free
Register
from $110
Register
from Free
Register
from $30.75
Register
from $50
Register
from $25
Register
from $15
Register
from $25
Register
from $40
RegisterWindsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run
Windsor, Colorado7:00 AM start
from $20
Register
from Free
Register
from $10
Register
from $10
RegisterLiberty Energy 5K - Benefiting the Bettering Human Lives Foundation
Denver, Colorado9:45 AM start
5KKids
from Free
Register
from $39
Register
from $60.38
RegisterKids' Fall Series - Where Kids Run Free!
Colorado Springs, Colorado11:30 AM start
from Free
Register