Tennessee Triathlon Calendar 2025-2026

Header image

Explore the best triathlons in Tennessee for 2025-2026! Our updated list features 264 exciting races across the region. Find your next race in Tennessee below and join the running community at these great events!

May 2026
May
2
Saturday

Smoky Mountain Bigfoot 5K

5 km
May
9
Saturday

Mudder's Day Madness Mud Run 5K

Obstacle Run 5 km
May
16
Saturday

Little River Rush Half Marathon

Half Marathon
May
17
Sunday

Ironman 70.3 Chattanooga

Triathlon
May
23
Saturday

Breath of Life 5K

5 km
May
30
Saturday

Kettlefoot 50k

Trail Run 13 km 25 km 50 km
June 2026
Jun
6
Saturday

Matters of the Heart Nashville 9K Run/Walk

9 km
Jun
6
Saturday

Butterfly 5K

5 km
Jun
6
Saturday

Discover the Greenway

Trail Run 4 mi
Jun
13
Saturday

Rylee's Run/Walk

5 km
Jun
20
Saturday

MoonPie 10 Mile Race - Bell Buckle

5 km 10 mi
Jun
20
Saturday

Mid-State Mile

Backyard Ultra
Jun
27
Saturday

Summer Splash 5K - Cookeville

5 km
July 2026
Jul
4
Saturday

4th of July Fun Run

5 km
Jul
18
Saturday

The Cherokee - Tellico Plains, TN

Trail Run 24 mi 46 mi 85 mi
August 2026
Aug
1
Saturday

Live Like Jack 5k

5 km
Aug
15-16
Sa - Su

Dog Days of Summer Trail Race

Trail Run 3 mi 1 hr ... 12 hr 24 hr
Aug
28-29
Fr - Sa

Great Smoky Mountains Half Marathon

5 km Half Marathon
September 2026
Sep
27
Sunday

Ironman Chattanooga

Triathlon
October 2026
Oct
3
Saturday

Steele Creek Struggle Half Marathon Trail Race

Trail Run 13 mi
Articles
Top 10 Marathons in the Netherlands — The Ultimate Dutch Marathon Bucket List: 10 Unmissable Races
The Beauty of the Easy Run — Why slowing down might be the smartest thing you do for your running
Mizuno Wave Rider 28: Elevating the Legacy of a Running Icon
Garmin Forerunner Review: Garmin Forerunner Series