IRONMAN 70.3 Musselman

Arrive to the start with a plan for controlled intensity: do a short warm-up entry, get a few minutes of steady strokes to your “race effort,” and avoid sprinting off the line. If you can seed, choose a group based on your sustainable 200–500 m pace; otherwise, be conservative for the first few minutes and let traffic sort itself out. For the first stretch, aim for clean sighting and calm breathing—settle your rhythm before you start passing. Practice your exit flow so you’re ready to run-warm instead of standing still: stand up smooth, grab what you need, and start into the run to T1 without letting your pace spike.

You’ll cover 1924 m in freshwater with water temperature that can vary, so treat the first buoy like a “settle in” moment rather than a time trial. Expect some chop/traffic early; with wind from the W (about 4.1 m/s), take slightly wider sighting margins and keep your line stable so you don’t drift off-course. Pace by effort: look to hold a consistent stroke count and breathing pattern while keeping your kicks and turns efficient. Fueling during the swim is not the focus—your job is to arrive calm, hydrated, and ready to consume immediately once you’re on the bike.

Your T1 should be transition-efficient: get from the swim gear to bike prep quickly, secure everything before you mount, and start pedaling as soon as you’re moving. Off the mount line, spend the first few minutes re-establishing cadence and breathing—rolling terrain makes it easy to accidentally surge. Focus on smooth power delivery rather than reacting to every small rise or headwind gust. Set your fueling and hydration routine right at the start of the bike so you’re not chasing numbers later.

The bike is 90.5 km with 406 m of elevation gain on rolling terrain, so manage power on the uphills and protect your legs on the downhills—don’t let speed downhills turn into uncontrolled “free” effort. With wind from the W around 4.1 m/s, you may feel it more on exposed sections; keep your body position stable, and if gusts appear, hold a steady line and avoid steering panic. Fueling targets for this course should be consistent through the ride: 90 g carbs per hour, 1000 mg sodium per hour, and about 800 ml fluid per hour. In hot conditions, you’ll likely need the full fluid plan—sip early, take in carbs regularly, and don’t wait until you feel thirsty. Because it’s rolling, take small “eat-and-drink” windows during flatter stretches so you can keep your power smooth.

Your T2 is about resetting your stride without forcing it. Off the bike, your legs will feel heavy and “springy” at the start—aim to run tall, get your cadence comfortable, and let the legs gradually unlock over the first few kilometers. Don’t take the first uphill (even if it’s subtle) faster than planned; flat/fast courses reward even pacing. Start fueling right away from your run plan so you’re not playing catch-up once adrenaline fades.

The run is 23.3 km with 68 m of elevation gain and a flat/fast profile, so the risk is running too hard early while everything feels good. In hot conditions, protect your pace: keep your effort steady and use aid stations to maintain fluid intake rather than chasing pace spikes. With the course feeling flatter than the bike, it’s tempting to “race the watch,” but your best execution is controlled—especially if you’re carrying any residual fatigue from the rolling 90.5 km. Keep your drinking regular; in heat, small, frequent sips often work better than occasional big drinks. If you have a planned carb intake on the run, execute it on a schedule—hot weather can reduce appetite and slow your willingness to eat, so plan your timing and stick to it.