The Great GO! Halloween Race

Course

All races start and finish at Kircher Park in Eureka, Missouri, on a scenic course through the town. The half marathon and 10K share a route, with a 5K, a one-mile fun run and a one-mile dog walk also offered.

Key dates

• !
  Registration
  Open now
• ★
  Race day
  Sat 24 Oct 2026

About

The Great GO! St. Louis Halloween Race offers a half marathon, 10K, 5K, and 1-mile fun run with a Halloween twist. It's a must-attend fall event for serious runners and families alike, whether you're aiming for a personal best or just enjoying the festive atmosphere!

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  Cliff Hanger Run

  Sat 24 Oct · Kansas City, MO · 8k · 5k · 1 Mile · 0.2 km

  Kansas City's Cliff Drive, a Missouri scenic byway

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• 

  Show Me Your Free State Marathon and Ultra-Marathon

  Sat 24 Oct · St. Joseph, MO · 100 miles · 50 miles · 50 km · Marathon · Half Marathon

  Where Missouri meets Kansas along the Missouri River

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• 

  The Skippo Trail Race

  Sat 31 Oct · Ballwin, MO · 30K · Half Marathon · 10K
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• 

  Ozark Trail 100 Mile Endurance Run

  Sat 31 Oct · Steelville, MO · 100 miles

  101 miles of singletrack through Mark Twain National Forest

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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.