IRONMAN 70.3 Oregon

Arrive early enough to settle your nerves and get a short, practical warm-up: a few minutes easy, then a couple of pick-ups so your first 100–200 m feel controlled, not rushed. Get seeded based on your expected swim pace; if you tend to get crowded, start slightly back and pass early rather than forcing position at the gun. In the first few minutes, focus on clean starts, relaxed breathing, and keeping your stroke steady while others accelerate around you.

You’ll swim 2230 m in freshwater where the temperature varies, so go by feel first: start at a sustainable effort and avoid sprinting the first buoy. With moderate NW wind (5 m/s), expect some surface chop and mild current effects that can make sighting slightly harder—stay calm, breathe regularly, and sight efficiently to avoid zig-zagging. As the water time builds, aim to finish the swim composed and ready to mount quickly rather than “survive” the last stretches. Fueling during the swim is generally not the priority; the key is arriving at T1 ready to drink and start your bike fueling on schedule.

Plan a simple, repeatable T1: exit cleanly, run smoothly through the transition, and get helmet on before anything else. Pick up shoes/gear in the order you practiced so you don’t fumble at speed. Once mounted, immediately focus on steady cadence and breathing—don’t chase the first few fast riders; let your legs come up to rhythm and lock in your fueling and hydration.

You’ll cover 90.2 km with 264 m of climbing on a flat/fast profile, so the bike is about sustained power and efficient use of the watts you can hold in hot conditions. With NW wind around 5 m/s, expect a mix of mild head/cross-wind sections and smoother tailwind stretches—stay aerodynamic and avoid over-braking when the wind shifts; let your line do the work. Heat is the limiting factor, so start drinking early and keep the drink schedule consistent rather than waiting until you feel thirsty. Use the provided targets: aim for about 90 g carbs per hour, 1000 mg sodium per hour, and about 800 ml fluid per hour spread across the course with regular, small intakes at aid stations (and on-bike if your plan includes it). Keep the bike effort steady through any small rises—your goal is to arrive at T2 with enough leg freshness to run fast.

Expect your legs to feel “heavy” for the first segment after the 90.2 km bike; your job is to settle into stride without spiking effort. In T2, get your pacing shoes on efficiently, then walk/stand briefly only as needed to prevent sloppy mechanics. On the first couple of kilometers, focus on smooth cadence and easy-to-moderate breathing while the body transitions from bike power to running rhythm.

The run is 21.3 km with 32 m of elevation gain and a flat/fast profile, so you’ll likely feel good if fueling and hydration were on point earlier. In hot conditions, the risk is starting slightly fast because the course feels easy—so keep the first portion controlled and let the pace build gradually. With the earlier NW wind, you may feel pockets of relief or extra air movement, but heat will still accumulate; protect your head/upper body at aid stations and stay intentional with hydration. Follow the fueling targets you’ve practiced: about 90 g carbs per hour, 1000 mg sodium per hour, and roughly 800 ml fluid per hour, broken into smaller intakes so it doesn’t upset your stomach. If you use water over thirst, it can help cool you without relying solely on drinking; use aid stations deliberately and keep moving through them rather than stopping hard.