
The Innsbrook Half Marathon & 10k is a running race on October 24, 2026 in Innsbrook, MO, with entry fees from $60 to $85.
The Innsbrook Half & 10k returns for 2026. Run on one of the most scenic, beautiful and challenging courses in the Midwest during the peak of fall color in Missouri! Hosted by Big River Race Management at the beautiful Innsbrook Resort. Located just one hour from St. Louis, runners and walkers will be treated to 13.1 or 6.2 miles on a mix of pavement and smooth gravel roads. A certified course, custom finisher medal, premium long-sleeved giveaway, a catered to-go lunch, live music and cold beer wait at the finish - you are not going to want to miss this event! The Innsbrook Half Marathon & 10k will be capped at 500 runners ensuring small start waves and ideal course density. The event will sell out in 2026, so don't wait, sign up today!
7:30 AM - Packet pick-up opens
9:00 AM - Half Marathon & 10k start
9:30 AM - Live Music Begins & BBQ is served!
10:00 AM - 10k Awards
11:00 PM - Half Marathon Awards
Thursday, October 22, 2026
Noon - 5:45 PM
Big River Running - West County
13969 Manchester Rd, Manchester, MO 63011
Live forecast from the U.S. National Weather Service.
Race day
Saturday, 10/24
High
76°
Low
51°
Conditions
Mostly sunny
Chance of Rain
0%
Wind
3 mph
Nearest Airport
STL
St. Louis Lambert International Airport · 36 mi
Time Zone
Central Time
From Endurance Grid
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Every finish line starts with a single decision. Claim your spot at The Innsbrook Half Marathon & 10k, put it on the calendar, and turn “someday” into a start date.
3
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The Innsbrook Half Marathon & 10k
Oct 24, 2026