South Dakota Half Marathons

9 upcoming half marathons across South Dakota, updated nightly. Want radius search and maps? Open these in the Race Finder.

When to race: half marathons in South Dakota

South Dakota has 9 upcoming half marathons over the next 12 months. October is the busiest month for them, with 3. Most are around Sioux Falls, Brookings, Mitchell. The next one is Sioux Falls Marathon on September 20 in Sioux Falls.

September 2026

October 2026

November 2026

April 2027

May 2027

June 2027

August 2027

Planning a race

Get South Dakota races in your inbox

A short monthly email: what's coming up in South Dakota, registration deadlines worth knowing about, and lotteries about to open. No spam, unsubscribe anytime.

More South Dakota: Marathons · 5K Races · 10K Races · Ultras · All South Dakota races · Browse by state