Triathlon Calendar near San Clemente 2025-2026

Nov

2

Sunday

Cal Tri Newport Dunes

Newport Beach | 22 mi from San Clemente

Triathlon

Join the 2025 Optimism Cal Tri at Newport Dunes on November 2 for a multi event triathlon that began in 1978 and is the longest running race at one venue. Sprint and Olympic swim bike run options welcome all abilities.

Mar

28

Saturday

Ironman 70.3 Oceanside

Oceanside | 21 mi from San Clemente

Triathlon

Join the iconic IRONMAN 70.3 in Oceanside CA for a scenic coastal course and high energy race day. Onsite PLAYTRI bike services handle rentals, tune ups and build and pack options so you can focus on the swim bike run.

Jul

18-19

Sa - Su

San Clemente Ocean Festival

San Clemente

Multisport

Celebrate sun and surf at the San Clemente Ocean Festival with a 5K beach run, one mile swim and the Dolphin Dash kids run. Family fun, surf contests, live music and vendors plus free parking and shuttle from San Clemente High School.