Half marathons in Centennial

14 upcoming races. See all races in Centennial or half marathons worldwide.

• Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA - 13.1 Half-Marathon Registration
  Oct 31, 2026 · 21.1 km
• Run for Mental Health 5K/10K/13.1 DENVER/AURORA - 13.1 Half-Marathon Registration
  Nov 14, 2026 · 21.1 km
• Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA - 13.1 Half-Marathon Registration
  Nov 28, 2026 · 21.1 km
• Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA - 13.1 Half-Marathon Registration
  Dec 12, 2026 · 21.1 km
• A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA - 13.1 Half-Marathon Registration
  Dec 26, 2026 · 21.1 km
• MLK Jr. Freedom Run 5K/10K/13.1 DENVER/AURORA - 13.1 Half-Marathon Registration
  Jan 16, 2027 · 21.1 km
• Coffee Lover Run DENVER/AURORA - 13.1 Half-Marathon Registration
  Jan 30, 2027 · 21.1 km
• Valentine's Day Run 5K/10K/13.1 DENVER/AURORA - 13.1 Half-Marathon Registration
  Feb 13, 2027 · 21.1 km
• Run Together Against Breast Cancer DENVER/AURORA - 13.1 Half-Marathon Registration
  Feb 27, 2027 · 21.1 km
• St. Paddy's Day Lucky Run 5K/10K/13.1 DENVER/AURORA - 13.1 Half-Marathon Registration
  Mar 20, 2027 · 21.1 km
• Always Hope Easter Run DENVER/AURORA - 13.1 Half-Marathon Registration
  Mar 27, 2027 · 21.1 km
• Sloth Run 5K/10K/13.1 DENVER/AURORA - 13.1 Half-Marathon Registration
  Apr 10, 2027 · 21.1 km
• Coffee Lover Run DENVER/AURORA - 13.1 Half-Marathon Registration
  Apr 24, 2027 · 21.1 km
• Run Juneteenth Day 5K/10K/13.1 DENVER/AURORA - 13.1 Half-Marathon Registration
  Jun 19, 2027 · 21.1 km