Oceanside 70.3
Oceanside, CA · USA · March / April · 70.3
A cold-water season opener: the swim and chilly bike start define your day.
🏊 Swim
1.9 kmCold harbour swim — wetsuit almost certain.
🚴 Bike
90 km · 700 m ↑Rolling Camp Pendleton roads with a couple of stinging climbs.
🏃 Run
21.1 kmFlat, fast, two laps by the water.
Course & conditions
Cutoffs
| Gate | Cutoff (from your start) |
|---|---|
| Swim — out of the water | 1:10:00 |
| Off the bike | 5:30:00 |
| Overall finish | 8:30:00 |
Standard 70.3 cutoff structure shown as a planning template — most 70.3s allow ~8:30 overall from your rolling start, with a swim cutoff near 1:10 and a bike cutoff near 5:30. Mid-bike and mid-run cutoffs vary. Always confirm the exact gates and clock basis in this event’s Athlete Guide for your race year.
Targets by level
Beat every cutoff with margin. Swim relaxed, ride well within yourself, walk-run the climbs, and never stop fuelling.
Hold steady race power on the bike, protect the run, and execute transitions cleanly. The run is won by what you did NOT do on the bike.
Sharp swim, disciplined high-end bike to your durability, and a negative-split run. Every transition second counts.
First-timer risks
- ⚠Cold-water shock at the start — practise cold swims beforehand.
- ⚠Starting the bike too hard while still cold and tightening up.
Packing & prep
- ✓Wetsuit plus neoprene cap/booties if you run cold.
- ✓Arm warmers for the early bike.
Race-morning timeline
A generic template — adjust to the event’s actual transition close and start times in the Athlete Guide.
Now make it personal
Turn this course into your own finish-time bands, cutoff check and fueling plan in 60 seconds.
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