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Triathlon Calendar near Houston 2025-2026

Explore the top triathlons near Houston for 2025-2026! We've gathered 56 exciting races in the area. Check out our detailed list below to find your next local race.

April 2025
Apr
19
Saturday

Green 10K

5 km 10 km
Apr
19
Saturday

Xklusive 6K Race/Walk

6 km
Apr
26
Saturday

DoNot Stop Half Marathon - Houston

5 km 10 km 13 mi
Apr
26
Saturday

Smilin' Rylen Run

5 km
Apr
26
Saturday

Ironman Texas

Triathlon
Apr
27
Sunday

Siesta Half Marathon

13 mi
Apr
27
Sunday

Vintage Half Marathon

5 km 13 mi
May 2025
May
3
Saturday

Klein ISD Education Foundation 5K

5 km
May
3
Saturday

Pear Run

5 km 10 km
May
4
Sunday

El Cinco Cinco

5 km 10 km
May
10
Saturday

Empower Mother's Day 5k

5 km
May
10
Saturday

Girls on the Run 5K - Southside Place

5 km
May
17
Saturday

WHAM Spring Dash

5 km
May
18-21
Su - We

Run Houston! Clear Lake 10K

5 km 10 km
May
18
Sunday

Rotary Club of Gryffe Valley 10K

10 km
May
26
Monday

Memorial Day 10K

5 km 10 km
June 2025
Jun
7
Saturday

Lemonade Dash 10K

10 km
Jun
7
Saturday

Hometown Half Marathon - Houston

5 km 10 km 13 mi
Jun
8
Sunday

Sylvan Beach Tri/Du

Triathlon
Jun
21
Saturday

Miles for Miracles

5 km
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