05/17/2026
Watch IRONMAN 70.3 Chattanooga 2026 LIVE
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The 2026 IRONMAN 70.3 Chattanooga triathlon takes place on Sunday, May 17, 2026 in Chattanooga, Tennessee. General registration for this highly anticipated race is currently sold out.
📍 Event details
Event: IRONMAN 70.3 Chattanooga 2026
Date: 17 May 2026
Location: Chattanooga
Main venue: Ross's Landing
Distance format: IRONMAN 70.3
🏊 1.9 km (1.2 mi) swim
🚴 90 km (56 mi) bike
🏃 21.1 km (13.1 mi) run
🌊 Swim course
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The race begins with one of the event’s signature features:
a downriver swim in the Tennessee River
This current-assisted swim is often considered:
faster than average 70.3 swims
beginner-friendly
ideal for personal best attempts
Athletes start upstream and swim toward downtown Chattanooga.
🚴 Bike course
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The bike route features:
rolling terrain
fast rural roads
sections through historic Chickamauga
moderate climbing rather than major mountain ascents
The course is known for:
smooth pacing opportunities
scenic countryside
fast descents mixed with continuous rollers
Total bike elevation gain is approximately 760–930 m depending on course updates and GPS measurement sources.
🏃 Run course
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The half-marathon run passes through:
downtown Chattanooga
Tennessee Riverwalk
Riverfront Parkway
the iconic Walnut Street Bridge
The finish-line atmosphere in downtown Chattanooga is considered one of the best in the U.S. 70.3 series.
May 17, 2026
IRONMAN 70.3 Chattanooga
Chattanooga, TN, United States
