Ironman 70.3 Oceanside

MAR
28
2026
IRONMAN 70.3 Oceanside kicks off the North American season with a sheltered harbor swim, a scenic bike through Camp Pendleton and a rolling oceanfront run that finishes on The Strand. Voted 2nd best IRONMAN 70.3 run course in 2023 and a World Championship qualifier.
Sat 28 Mar 2026
Ironman 70.3

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IRONMAN 70.3 Oceanside : event overview

IRONMAN 70.3 Oceanside is a half-distance triathlon held in Oceanside, California, United States. Registration information on the page shows a registration opening date of March 28, 2026. The event is presented with Athletic Brewing branding and is listed as a World Championship qualification event and part of the IRONMAN 70.3 series. The race is described as a North American season kickoff and the event page notes the run course received the Athlete Choice Award for 2nd Best IRONMAN 70.3 Run Course in 2023.

Course, conditions and services

The course includes a sheltered harbor swim, a hilly bike segment that passes through Camp Pendleton’s active military base, and a rolling run course along the Pacific Ocean that finishes on The Strand beachfront. Climate data shown on the page lists a typical high air temperature of 66°F / 19°C, low air temperature of 47°F / 8°C, and an average water temperature of 57°F / 14°C. An on-site service provider, PLAYTRI, lists bike rental and support options with prices and deadlines, and gives a venue address of 101 The Strand N., Oceanside, CA. Visit the organization's website for the most recent information.

70 mi
Ironman 70.3

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