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Triathlons in Missouri

Missouri has 28 upcoming triathlons scheduled for 2026. Two months carry most of the calendar: June (14) and July (9) together account for 82% of races (23 of 28). No single city dominates the calendar. Saint Louis leads with 4 races, followed by Jefferson City (3), Rogersville (3), and Springfield (2). The remaining 57% of the calendar is spread across smaller cities.

Triathlons by month in Missouri

Jun (14) · Jul (9) · Aug (4) · Sep (1)

Showing 24 of 28

Triathlon

Great Escape Kid's & Youth Triathlon - Saturday Evening

Jefferson City, MO

Triathlon

Great Escape Kid's & Youth Triathlon - Saturday Evening

June 14, 2026
Jefferson City, MO
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Triathlon

The Great Escape Triathlon

Jefferson City, MO

Triathlon

The Great Escape Triathlon

June 14, 2026
Jefferson City, MO
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ConcreteMan & ConcreteKids Triathlon
Triathlon

ConcreteMan & ConcreteKids Triathlon

June 19, 2026
Rogersville, MO
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Triathlon

Great Escape Jefferson City Triathlon - Sunday

Jefferson City, MO

Triathlon

Great Escape Jefferson City Triathlon - Sunday

June 19, 2026
Jefferson City, MO
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Triathlon

ConcreteKids Triathlon - Friday

Rogersville, MO

Triathlon

ConcreteKids Triathlon - Friday

June 19, 2026
Rogersville, MO
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Chesterfield Youth Triathlon
Triathlon

Chesterfield Youth Triathlon

June 20, 2026
Chesterfield, MO
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Triathlon

2026 ConcreteMan Triathlon - Saturday Events

Rogersville, MO

Triathlon

2026 ConcreteMan Triathlon - Saturday Events

June 20, 2026
Rogersville, MO
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Triathlon

ConcreteMan Triathlon

Springfield, MO

Triathlon

ConcreteMan Triathlon

June 20, 2026
Springfield, MO
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Triathlon

Sunset Hills Triathlon

Sunset Hills, MO

Triathlon

Sunset Hills Triathlon

June 27, 2026
Sunset Hills, MO
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Triathlon

Lou Fusz Subaru St. Louis Triathlon

St Louis, MO

Triathlon

Lou Fusz Subaru St. Louis Triathlon

June 28, 2026
St Louis, MO
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Triathlon

Crestwood Kids Triathlon

Saint Louis, MO

Triathlon

Crestwood Kids Triathlon

June 28, 2026
Saint Louis, MO
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Triathlon

2026 St. Louis Triathlon

St. Louis, MO

Triathlon

2026 St. Louis Triathlon

June 28, 2026
St. Louis, MO
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Triathlon

Lou Fusz Subaru St. Louis Triathlon

Maryland Heights, MO

Triathlon

Lou Fusz Subaru St. Louis Triathlon

June 28, 2026
Maryland Heights, MO
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St. Louis Triathlon
Triathlon

St. Louis Triathlon

June 28, 2026
Saint Louis, MO
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St. Luke's New Town Triathlon
Triathlon

St. Luke's New Town Triathlon

July 11, 2026
Saint Charles, MO
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Triathlon

Big Shark New Town Triathlon

St. Charles, MO

Triathlon

Big Shark New Town Triathlon

July 11, 2026
St. Charles, MO
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Triathlon

St. Luke's New Town Triathlon

Saint Charles, MO

Triathlon

St. Luke's New Town Triathlon

July 17, 2026
Saint Charles, MO
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Ballwin Triathlon
Triathlon

Ballwin Triathlon

July 19, 2026
Ballwin, MO
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Triathlon

Show-Me State Games Triathlon & Duathlon

Columbia, MO

Triathlon

Show-Me State Games Triathlon & Duathlon

July 19, 2026
Columbia, MO
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Triathlon

The Youth Triathlon presented by TriKC @ the YMCA

North Kansas City, MO

Triathlon

The Youth Triathlon presented by TriKC @ the YMCA

July 19, 2026
North Kansas City, MO
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Triathlon

2026 Matt Mason Cowboy Up Triathlon & Duathlon

Smithville, MO

Triathlon

2026 Matt Mason Cowboy Up Triathlon & Duathlon

July 26, 2026
Smithville, MO
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Tour de Kirkwood Triathlon
Triathlon

Tour de Kirkwood Triathlon

July 26, 2026
Saint Louis, MO
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2026 Matt Mason "Cowboy UP" Triathlon/Duathlon
Triathlon

2026 Matt Mason "Cowboy UP" Triathlon/Duathlon

July 26, 2026
Smithville, MO
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Thousand Oaks Kids Triathlon
Triathlon

Thousand Oaks Kids Triathlon

August 1, 2026
Parkville, MO
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Triathlons in Nearby States

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Frequently asked questions

What are the standard triathlon distances?▾
The main distances are Sprint (750m swim, 20K bike, 5K run), Olympic (1.5K swim, 40K bike, 10K run), Half-Ironman/70.3 (1.2mi swim, 56mi bike, 13.1mi run), and full Ironman (2.4mi swim, 112mi bike, 26.2mi run). Browse all distances on RACE.
What do I need for my first triathlon?▾
At minimum you need a swimsuit, goggles, a road or tri bike, helmet, running shoes, and a race belt for your number. Many beginners start with a sprint triathlon, which can be completed in 1-2 hours.
What is the difference between sprint and Olympic triathlon?▾
A sprint triathlon is roughly half the distance of an Olympic triathlon. Sprints typically take 1-1.5 hours while Olympic distance races take 2-3.5 hours. Sprints are ideal for beginners.
How do I qualify for the IRONMAN World Championship?▾
Athletes qualify by earning a slot at an IRONMAN-branded qualifying race. Each full IRONMAN event allocates slots to age group winners. The World Championship is held annually in Kailua-Kona, Hawaii.
What are the biggest triathlons in the US?▾
The SuperTri Chicago Triathlon is the largest single triathlon event with 8,000+ athletes. IRONMAN events in Texas, Florida, Lake Placid, and Arizona draw thousands. Escape From Alcatraz is a bucket-list race. Find them all on RACE.
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