Overview
Compete in IRONMAN 70.3 Oceanside with a stunning Pacific Ocean swim, a fast bike along California’s coastline, and a scenic run through beautiful beachfront trails.
SoCal Vibe The Athletic Brewing IRONMAN 70.3 Oceanside course features incredible opportunities only athletes can experience come race day. From swimming in the Oceanside harbor to biking through an activity military base, this unique course offers a once-in-a-lifetime race experience. Athletes will love the top-rated run course along the Pacific Ocean, ending at the famously festive finish line on The Strand!
Race categories
113K
IRONMAN 70.3
- Schedule
Thursday, March 26, 2026
8 AM - 9 AM · Shakeout Run presented by Shokz · Junior Seau Pier Amphitheater 9 AM - 10 AM · Coffee + Breakfast Social presented by IRONMAN TriClub · Swamis Cafe Oceanside 10 AM - 6 PM · Athlete Check-In & Timing Chip Pick-Up · Junior Seau Beach Community Center at the Pier 10 AM - 6 PM · IRONMAN Village • Official IRONMAN Store • Information Tent • PLAYTRI Triathlon Store & Tech Service Center • VIP Spectator Credential Pick-Up • IRONKIDS Oceanside Fun Run Registration · Betty’s Lot (101 The Strand N, Oceanside, CA) 11 AM - 11:30 AM · Meet Miles the Mascot · Official Merchandise Store 12 PM - 12:30 PM · Precision Fuel & Hydration - How to Nail Hydration for a 70.3 · Junior Seau Pier Amphitheater 1 PM - 1:30 PM · Learn More About Shokz · Junior Seau Pier Amphitheater 1:30 PM - 2 PM · First Timer Meet & Greet with the Race Director · Junior Seau Pier Amphitheater 2 PM - 3 PM · Athlete Briefing · Junior Seau Pier Amphitheater 3 PM - 3:30 PM · Open Water Swim Tips with the Race Director · Junior Seau Pier Amphitheater 4 PM - 5 PM · Athlete Briefing · Junior Seau Pier Amphitheater 5 PM - 5:30 PM · 2026 IRONMAN New Competition Rules Chat/Q&A · Junior Seau Pier Amphitheater 5 PM - 9 PM · IRONMAN Night · Sunset Market, Pierview & Tremont AveFriday, March 27, 2026
8 AM - 9 AM · Sunrise Yoga with YogiTriathlete (Mats Will Not Be Provided) · Junior Seau Pier Amphitheater 9 AM - 4:30 PM · IRONKIDS Oceanside Fun Run Registration · IRONMAN Village 9 AM - 5 PM · Athlete Check-In & Timing Chip Pick-Up (AWA Priority Check-In Ends at 12 PM) · Junior Seau Beach Community Center at the Pier 9 AM - 5 PM · IRONMAN Village • Official IRONMAN Store • Information Tent • PLAYTRI Triathlon Store & Tech Service Center • VIP Spectator Credential Pick-Up · Betty’s Lot (101 The Strand N, Oceanside, CA) 9:30 AM - 10 AM · Zoot Q&A with Zoot Pros · Junior Seau Pier Amphitheater 9:30 AM - 5:30 PM · Mandatory Bike Check-In & Optional Gear Check-In · Transition in Harbor 10 AM - 11 AM · Athlete Briefing · Junior Seau Pier Amphitheater 11 AM - 12 PM · Experience Oman IRONMAN Pro Series Panel · Seabird Hotel - Grand Coastal Ballroom 12 PM - 12:30 PM · Precision Fuel & Hydration - How to Nail Hydration for a 70.3 · Junior Seau Pier Amphitheater 12:30 PM - 1 PM · Cuisine Solutions Cooking Demo · Junior Seau Pier Amphitheater 12:30 PM - 1 PM · Wetsuit Fit Session with the Roka Team · Official Merchandise Store 1 PM - 2 PM · Athlete Briefing · Junior Seau Pier Amphitheater 2 PM - 2:30 PM · 2026 IRONMAN New Competition Rules Chat/Q&A · Junior Seau Pier Amphitheater 2:30 PM - 3 PM · First Timer Meet & Greet with the Race Director · Junior Seau Pier Amphitheater 3 PM - 4 PM · Athlete Briefing · Junior Seau Pier Amphitheater 4 PM - 4:30 PM · Open Water Swim Tips with the Race Director · Junior Seau Pier Amphitheater 4 PM - 4:30 PM · Meet Miles the Mascot · Official Merchandise Store 5 PM · IRONKIDS Oceanside Fun Run · Oceanside Strand, South Side of PierSaturday, March 28, 2026 - Race Day!
4:30 AM - 5:30 PM · Athlete & Spectator Shuttle Bus Service · From Pier Areas: 1. Oceanside Transit Center on Seagaze between Cleveland & Tremont 2. Pierview Coffee on east side of train tunnel next to bollards 3. Civic Center Parking Structure on east side of Civic Center before Ditmar To Harbor: 4. Parking Lot #1 at 401 Riverside Dr - will walk under pedestrian tunnel and walk to Transition 4:45 AM - 6:30 AM · Transition Open · Transition in Harbor 6:40 AM · Pro Race Start · Oceanside Harbor 6:46 AM · Para Race Start · Oceanside Harbor 6:50 AM · Age Group Rolling Start · Oceanside Harbor 8 AM - 4 PM · IRONMAN Village • Official IRONMAN Store • Information Tent · Betty’s Lot (101 The Strand N, Oceanside, CA) 11 AM - 4:30 PM · Post-Race Athlete Food · Junior Seau Pier Amphitheater 11 AM - 5 PM · Morning Clothes Bag Pick-Up · IRONMAN Village 12 PM - 5 PM · Mandatory Bike & Gear Check-Out · South End of Transition in Harbor 1 PM - 1:30 PM · Meet Miles the Mascot · Official Merchandise Store 4 PM · Awards Ceremony & 2026 Precision Fuel & Hydration IRONMAN 70.3 World Championship Slot Allocation/Rolldown Ceremony Automatic Qualifiers need to be present during the Awards Ceremony to claim their slot with their award. Slot Allocation/Rolldown for the remaining age group “Performance Pool Slots” will begin immediately following Awards. Be early! Must be present to claim a slot. · Celebration Stage (Junior Seau Pier Amphitheater)- Route
Swim
Bay
Bike
Hilly
Run
Rolling
Typical race-day conditions
Air 7–21 °C · Water 16 °CSwim course
The 2026 Athletic Brewing IRONMAN 70.3 Oceanside swim will take place entirely in the harbor, sheltered from the ocean waves. The swim starts with a rolling start. You will then will swim a single loop counterclockwise around the buoys before exiting to transition.Bike course
The bike course takes you from beautiful Oceanside Harbor through Camp Pendleton, an active military base. This area will give you a taste of what Southern California’s true beauty entails.Run course
The two-loop, 13.1-mile run course begins at transition in the Oceanside Harbor. You will run out to the harbor area, down the scenic Strand, and through coastal neighborhoods before a spectacular finish at the Oceanside Pier. The run portion is considered flat and fast, but be prepared for the turns and climbs/descents as you go from beach level to street level.
Update history
6 Oct 2026
Sold out: false → true
3 Oct 2026
Time changed: 3 April at 0:00 → 3 April at 4:00
IRONMAN 70.3 Oceanside
Sat, 3 Apr 2027