2026 Prairie Series - Day 5 (IA)
Race Date
May 12, 2026
Location
Sioux City, IA
Quick facts
- Date
- Tuesday, May 12, 2026
- Location
- Sioux City, Iowa
- Distance
- Half marathon (13.1 mi)
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Not listed
- Finishers on record
- 337
The Experience
World's Best Marathon & Half Series! No Time Limits Great Food Award-Winning Medals Loony Community! We RUN this country, TOGETHER!Event details and scheduleThanks for running with Mainly Marathons! Take a look at our website for additional details about this series and our other series of races. Also, join our Facebook group to stay up-to-date with our loony adventures: Main Group and Prairie Series. If you're interested in some Mainly Merch, check out our online store HERE. We'll offer some items (hats, stickers, magnets, mugs, etc.) in-person at the races, the Mainly Merch store best option for a variety of fun designs and quality merchandise to showcase your loonacy! If you have any questions, email MB@MainlyMarathons.com We RUN this country, TOGETHER!
Course Info
Course Type
Loop Course
Terrain
road
Difficulty
Ultra-Flat
Net Drop/km
0 m (Flat)
Separation
0.0%
Quality Score
Solid Pick599 years running
~41 finishers a year
small race — neutral
31% returning runners
6 photos
runners from 18 states
winner 1:45:51
typical high 77°F
Race Day Weather
5-year historical avgStart (Low)
55°
Afternoon (High)
77°
Warm — hydration strategy is key, start conservatively
0.1"
Precipitation
14 mph
Wind
56%
Humidity
Historical Finish Times
How 337 finishers actually crossed the line across 9 years.
Most recent
2026
Total finishers
337
Median time
3:40:27
Latest turnout
38
States
44
Turnout by year
2018–2026
Hover the histogram to inspect specific finish times.
Race Photos
About the Organizer
Frequently asked
When is the 2026 Prairie Series - Day 5 (IA)?
The 2026 Prairie Series - Day 5 (IA) is held on Tuesday, May 12, 2026, starting at 9:00 AM.
Where does the 2026 Prairie Series - Day 5 (IA) take place?
It takes place in Sioux City, Iowa.
What distances does the 2026 Prairie Series - Day 5 (IA) offer?
The half marathon (13.1 miles).
Is the 2026 Prairie Series - Day 5 (IA) course flat and good for a PR?
The 2026 Prairie Series - Day 5 (IA) is a ultra-flat, loop course course.
How many people run the 2026 Prairie Series - Day 5 (IA)?
HalfRuns has finish records for 337 runners who have completed the 2026 Prairie Series - Day 5 (IA).
HalfRuns editorial — independent, no paid placement.
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