Sioux Falls Marathon
Sioux Falls Marathon offers a scenic Midwest course through city parks and bike trails.
Race Date
Sep 20, 2026
Location
Sioux Falls, SD
Quick facts
- Date
- Sunday, September 20, 2026
- Location
- Sioux Falls, South Dakota
- Distance
- Half marathon (13.1 mi) + DUAL RACE: Full Marathon & Miracle 5K, 26.2 Miles, 13.1 Miles, 5K
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Yes
- Finishers on record
- 20,520
Highlights
Good For
Atmosphere
Course
The Experience
South Dakota's premier marathon weekend unfolds in Sioux Falls, offering a scenic Midwest course through the city's green spaces. The half marathon winds through downtown, takes in the iconic Falls Park, and utilizes the city's extensive bike trail system, showcasing the best of Sioux Falls.
This beloved event, first run in 1999 and now in its 26th year, typically draws around 900 finishers for the half marathon, with a growing field size. Runners hail from approximately 38 states, highlighting its appeal as a destination race. A dedicated 20% of participants return year after year, a testament to the race's enduring quality.
The course is known for its flat profile, making it a strong contender for personal bests. The event also supports a good cause, with a portion of net proceeds benefiting the Sanford Children's Miracle Network, having raised over $20,000 in 2024.
Race-provided description
The Sioux Falls Marathon, powered by Sanford Health and the Sioux Falls Sports Authority, features races for all levels of runners. Distances include the full marathon, half marathon, & 5K. The full & half races feature downtown Sioux Falls, iconic Falls Park (for full and half) and many of the city's finest parks as well as the bike trail system. A portion of the net proceeds from the Sioux Falls Marathon is donated to the Sanford Children's Miracle Network. The 2024 races raised more than $20,000 for children in our community.
Logistics
Race Day
Sunday, September 20, 2026
Start Time
7:00 AM
Giveaway
TBD
Start Location
Sioux Falls, Sioux Falls, SD, 57104
Course Info
USATF CertifiedCourse Type
Loop Course
Terrain
road
Scenery
Park, Urban
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
-0.03 m
Separation
0.5%
Also Offers
USATF Certified Course
SD21002GM · Sioux Falls Half Marathon
Relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Course Map
2 other maps for this race
Quality Score
Runner Favorite8626 years running
~1,590 finishers a year
growing or steady
21% returning runners
USATF certified · 6 timing sources
runners from 39 states
winner 1:12:49
typical high 75°F
Race Day Weather
5-year historical avgStart (Low)
57°
Afternoon (High)
75°
Warm — hydration strategy is key, start conservatively
0.1"
Precipitation
14 mph
Wind
67%
Humidity
Historical Finish Times
How 20,520 finishers actually crossed the line across 26 years.
Most recent
2025
Total finishers
20,520
Median time
2:08:41
Latest turnout
900
States
51
Turnout by year
2018–2025
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the Sioux Falls Marathon?
The Sioux Falls Marathon is held on Sunday, September 20, 2026, starting at 7:00 AM.
Where does the Sioux Falls Marathon take place?
It takes place in Sioux Falls, South Dakota.
What distances does the Sioux Falls Marathon offer?
The half marathon (13.1 miles), plus DUAL RACE: Full Marathon & Miracle 5K, 26.2 Miles, 13.1 Miles, 5K.
Is the Sioux Falls Marathon course flat and good for a PR?
The Sioux Falls Marathon is a ultra-flat, loop course course. The course is USATF-certified, so finish times can be used for qualifying.
How many people run the Sioux Falls Marathon?
HalfRuns has finish records for 20,520 runners who have completed the Sioux Falls Marathon.
HalfRuns editorial — independent, no paid placement.
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