Sioux Falls Marathon
- Date
- September 20, 2026
- Location
- Sioux Falls, Sioux Falls, SD
- Distance
- DUAL RACE: Full Marathon & Miracle 5K · DUAL RACE: Half Marathon & Miracle 5K · Single Race: Full Marathon & more
From the Organizer
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.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
74°
Typical Low
50°
Based on US Climate Normals data from Sioux Falls Wfo Ap.
Host City
About Sioux Falls, SD
Population
197,642
as of 2023
Elevation
1,422 ft
Nearest Airport
FSD
Sioux Falls Regional Airport · 0 mi
Time Zone
Central Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Sioux Falls Marathon, put it on the calendar, and turn “someday” into a start date.
Coming Up
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From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.
Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.
The half marathon rewards people who show up for the boring training miles.
How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Sioux Falls Marathon?
- Sioux Falls Marathon is a running race held in Sioux Falls, South Dakota on September 20, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Sioux Falls Marathon?
- Sunday, September 20, 2026 in Sioux Falls, South Dakota at Sioux Falls, Sioux Falls, SD. Check the event page for exact start times and wave schedules.
- How do I register for the Sioux Falls Marathon?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Sioux Falls Marathon
Sep 20, 2026