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Ironman 70.3 Oceanside is a ironman 70.3 triathlon event held in Oceanside, CA on Mar 28, 2026. It draws 3,500 competitors. The course features rolling hills.
Trehko tracks registration status, entry fees, and deadlines for Ironman 70.3 Oceanside and thousands of other endurance races. Use the app to set a registration reminder and build a training plan tailored to race day.
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