IRONMAN 70.3 Coeur d'Alene

Get a calm, controlled start: arrive early, check your line/seed position, and do a short wake-up warm-up in the swim area so you’re not sprinting the first meters. Use the first few minutes to settle into rhythm and breathe consistently (don’t force pace right away). If you’re prone to drifting, pick a visual landmark and sight early and often so you stay on your intended line through the opening chop and traffic.

You’ll cover 1931 m of freshwater where the temperature varies, so start conservatively and let your body come up to speed. With air temps that can range up to mid-20s Celsius and a light-to-moderate breeze (wind 3.7 m/s from the S), expect relatively manageable surface conditions, but still plan for steering and small speed changes when swimmers surge around you. Fueling during the swim isn’t the priority—focus on technique and steady breathing, then be ready to transition cleanly so you can start your bike fueling immediately after T1. Use the swim to establish your target effort: smooth acceleration beats early over-speeding, especially before the rolling 90.2 km bike begins.

Transition flow (swim→bike): get out of the water and to T1 efficiently, manage your timing with your spotter/volunteer instructions, and move through gear-up without rushing. Put on kit with a smooth sequence (helmet on, glasses/safety sorted, shoes secured, then clip in) so you’re not fiddling while you’re already traveling. The first 5–10 minutes on the bike should be a controlled build—settle your cadence, check power/heart-rate if you use them, and start taking in your planned carbs/fluids early rather than waiting.

Ride 90.2 km over a rolling course with 774 m of elevation gain, so expect frequent changes in grade that naturally tempt you to surge on climbs and coast too much on the flats. Wind is 3.7 m/s from the S, so you’ll likely feel it as cross/headwind and tailwind segments—stay aerodynamic and steady when it’s into you, and don’t “spend” extra power when it switches to help. In moderate heat (air temp roughly 13.6–25.8 C), start fueling early and keep it consistent: carbs 90 g per hour plus sodium 1000 mg per hour and about 800 ml fluid per hour as your target. Take your fluid and carbs regularly rather than in big chunks—this course and conditions reward smooth intake, especially as elevation and rolling effort add strain near the later miles.

Transition flow (bike→run): after you rack the bike, focus on controlled breathing and bring your cadence up in the first 1–2 minutes rather than forcing long strides. Your legs should feel heavy off the bike—expect some numbness or tightness in calves/hamstrings on the first stretch of the flat course. Use the transition walk/jog to reset posture: shoulders relaxed, eyes forward, and start your first quarter with a pace you can hold for the full 21.4 km.

The run is 21.4 km with 69 m of elevation gain and a flat/fast profile, so once you’re loose, you can settle into rhythm and move efficiently. Because the bike has rolling effort (and 774 m of gain), your job is to prevent a too-fast early start: the flat course can make you feel better than you actually are. With moderate heat (13.6–25.8 C range) and a light breeze (3.7 m/s from the S), hydrate and take in carbs in a steady cadence so you don’t fade late. Aim to keep your fueling organized even as the pace settles—this is where consistent energy availability matters most on a fast, flat run.