Marathons Events in Denver

Check out happening marathons events all around Denver, CO

DENVER COLFAX MARATHON - NATIONAL RACE MEETUP

 Sat, 16 May at 09:00 am Denver Colorado

Denver Colfax Marathon

 Sun, 17 May at 06:00 am Ferril Lake

Colfax Marathon Weekend

Sat, 16 May at 08:00 am City Park, Denver, Colorado

Cookie Chase 5K - 2026

 Sat, 11 Jul at 08:00 am Sloan's Lake

2026 Denver Close Encounters

 Fri, 22 May at 12:00 pm Denver Turnverein

N2N (5HR SET) w/ SOUND GROUND

 Sun, 31 May at 03:00 pm Fort Greene USD 29 to 34

Run for the Home Team 5k @ Waldschänke Ciders | Denver

 Sat, 19 Sep at 10:00 am Waldschänke Ciders + Coffee USD 0 to 65

Be Kind to Your Mind 1M 5K 10K 13.1 26.2

 Sat, 02 May at 01:00 pm Denver USD 4 to 42

Miles for Migraine Colorado

 Sat, 15 Aug at 08:00 am Great Lawn Park Free

Cat Day Virtual Race 1M 5K 10K 13.1 26.2

 Sun, 09 Aug at 01:00 pm Denver USD 4 to 42

Race Through Hawaii Virtual Race | 5K, 10K, Marathon | Run Anywhere

 Sat, 16 May at 01:00 pm Denver USD 5 to 42

Race Through Colorado Virtual Race | 5K, 10K, Half Marathon | Run Anywhere

 Sat, 09 May at 01:00 pm Denver USD 5 to 42

Memorial Day 1M 5K 10K 13.1 26.2

 Mon, 25 May at 01:00 pm Denver USD 4 to 42

Earth Day 5K Virtual Race 2026

 Sun, 19 Apr at 01:00 pm Denver USD 15 to 42

Unhinged and Feral 1M 5K 10K 13.1 26.2 - Now Only $18!

 Sat, 03 Oct at 01:00 pm Denver USD 0 to 42

2026 Race to Read 1M 5K 10K 13.1 26.2

 Fri, 06 Mar at 01:00 pm Denver USD 5 to 42

Mother's Day 1M 5K 10K 13.1 26.2

 Sun, 10 May at 01:00 pm Denver USD 4 to 42