Ironman 70.3 Oceanside

MAR

28

2026

IRONMAN 70.3 Oceanside kicks off the North American season and is a World Championship qualifier. Swim the harbor, bike through Camp Pendleton and run along the Pacific to a beachfront finish on The Strand. Free to attend.

Sat 28 Mar 2026

Oceanside, California

Website

Swim - 1.2 Miles Run - 13.1 Miles Bike - 56 Miles

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Event overview

IRONMAN 70.3 Oceanside is scheduled for March 28, 2026 in Oceanside, California, United States. The event is organized by IRONMAN and presented with Athletic Brewing as a named partner. The race is listed as a World Championship qualifier and is positioned as the North American season kickoff. The event location is given with geo coordinates 33.19587, -117.37948. The event listing notes it is accessible for free.

Course and conditions

The course includes a swim in the Oceanside harbor, a bike section that passes through Camp Pendleton military base, and a run along the Pacific Ocean that finishes on The Strand (beachfront). The course is described with these characteristics: swim - bay, bike - hilly, run - rolling. Typical event conditions noted on the page include average water temperature about 57°F / 14°C, a high air temperature around 66°F / 19°C, and a low air temperature around 47°F / 8°C. The run course is described as running along beachfront trails by the Pacific Ocean. Visit the organization's website for the most recent information.