2026 IRONMAN 70.3 Oceanside
Events
| Half Ironman Triathlon 70.3 : Swim 1.2 miles, Bike 56 miles, Run 13.1 miles |
- Race Date: Saturday, March 28, 2026
- Location:Oceanside Harbor
- Address: 1540 Harbor Drive North
- City/State/Zip:Oceanside, California 92054
- Country: USA
_ The 2026 Ironman 70.3 Oceanside:
SoCal Vibe
Start your season where the sun shines and beach breezes greet you at every turn. This laid-back community is your perfect race-cation to kick start your season, lined with palm trees and sunsets. Oceanside is a whole vibe - from the stunning beaches to the thriving downtown area. Athletes can walk from the hotel to the venue to the beach, and everything in between. Find adventure for every wavelength.
Oceanside features two incredible opportunities only athletes can experience come race day. From swimming in the Oceanside harbor and biking throughout an activity military base, Camp Pendleton. Athletes will experience one of the top-rated run courses along the Pacific Ocean, stunning views, spectator lined and finishing along the Strand.
Course Information:
Swim
The 2025 IRONMAN 70.3 Oceanside swim starts through the waves along the beach. From a rolling start corral on the beach to start your 1.2 mile swim in the salt water. Once past the break, the course will take you into the harbor, then south towards the harbor boat dock.
Bike
The bike course takes athletes from beautiful Oceanside Harbor through Camp Pendleton, an active military base. This area will give athletes a taste of what Southern California’s true beauty entails. After the first 20 miles, athletes leave the coast to head inland. There athletes face the San Mateo Hill and 2 other climbs that will test you both physically and mentally. The final few miles are flat but are usually greeted with a headwind as you head towards the Oceanside Harbor to start your run course.
No Speeding - No Passing Zone on Basilone Rd (approx 39 ½ miles). Speed limit MUST be 25 miles per hour or less as an average on that section. There are signs and tape across the road at the top and the bottom of the speed zone. There will be a one-speed trailer in the middle of the section but do not assume it is tracking each person individually. It is a guide. Failure to comply will be an automatic disqualification!
All Athletes Must Wear Bib on the Bike Course as Required for Identifying on the Base and State Park
Due to Camp Pendleton’s security, no pre-riding of the course will be allowed race week. No spectators will be allowed on base. Please understand that we are very fortunate to have use of Camp Pendleton.
Run
The two-loop run portion is considered flat and fast but be prepared for the turns and inclines/declines as you go from beach level to street level.
The two-loop, 13.1-mile run course begins at Transition above the Oceanside Pier, down onto the Harbor, on The Strand and through coastal neighborhoods before a spectacular finish.
Directions:
Previous Results:
- -) 2001-2025 Race Results:
2025 Results at: IronMan / AthLinks / USAT
2024 Results at: CoachCox / AthLinks / USAT
2023 Results at: endurance-data / AthLinks / USAT
2022 Results at: endurance-data / AthLinks / USAT / SportStats
2021 Results at: EnduranceData / AthLinks / USAT
2020 Results: Cancelled due to Covid-19
2019 Results at: endurance-data / athlinks.com / USAT
2018 Results at: CoachCox / athlinks.com / USAT
2017 Results at: CoachCox or athlinks.com or USAT
2016 Results at: CoachCox or athlinks.com or USAT
2015 Results at: CoachCox or athlinks.com or USAT
2014 Results at: CoachCox or athlinks.com or USAT
2013 Results at: AthLinks / USAT / analysis
2012 Results at: SportStats or athlinks.com or USAT
2011 Results at: usatriathlon.org or athlinks.com
2010 Results at: usatriathlon.org or athlinks.com
2009 Results at: SportStats or athlinks.com
2008 Results at: athlinks.com
2007 Results at: athlinks.com
2006 Results at: athlinks.com
2005 Results at: athlinks.com
2004 Results at: athlinks.com
2003 Results at: athlinks.com
2002 Results at: athlinks.com
2001 Results at: SportStats or athlinks.com
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