5k, 10k, Kids Run - SOLD OUT. Event nearing capacity.
Last chance to register - save $15 off your entry with code LETSDOIT15. Expires:
Boulderthon Full Marathon
$169.00
Run the Boulder Marathon in the happiest, fittest city in the US! Includes Finisher Medal, Finisher Shirt, 1 Free Beer, Timing Chip.
Boulderthon Half Marathon
$159.00
Run the Boulder Marathon in the happiest, fittest city in America! Includes Finisher Medal, Finisher Shirt, 1 Free Beer, Timing Chip.
Boulderthon 10K (SOLD OUT)
$64.00
Bookend your season with a fun 10K! Includes Finisher Medal, Finisher Shirt, Timing Chip.
Boulderthon 5K (SOLD OUT)
$59.00
Run a fun, fast 5K! Includes Finisher Medal, Finisher Shirt, and Timing Chip.
Denver Zoo Kids Run (SOLD OUT)
$24.00
Run Boulder's 2nd annual Kids Run, Presented by the Denver Zoo! Includes Kids Finisher Medal and Kids Finisher Shirt.