IRONMAN 70.3 Weymouth

Get to the start early for a quick check of how calm vs choppy the water feels at your wave/seed. If there’s any wind pushing across, plan to sight often (more frequently than you think you need) and start controlled—your first 5–10 minutes should feel “smooth,” not like an all-out sprint. Choose position by adjusting to the current: you want feet that are reasonably consistent, not constantly weaving or accelerating.

You’ll cover 1906 m in freshwater where the temperature varies, so start slightly conservative to avoid overheating or going too hard too early. Because the course sits in an exposed environment with SW wind (typical on race days), expect occasional chop and keep your stroke efficient: steady tempo, relaxed shoulders, and purposeful sighting. Aim to eat/drink later—during the swim you’ll mostly be setting up for a fast, clean transition rather than taking in fuel. If you feel your breathing tighten from the conditions, settle into a rhythm and prioritize finishing strong into the final stretch so the bike start feels controlled.

Transition from swim to bike is about minimizing time-on-feet: set up your gear so your shoes and helmet are ready to go, and practice your sequence once in training. When you mount, pedal smoothly for the first few minutes—don’t try to “catch up” immediately. With rolling terrain and crosswind risk from the SW, focus on staying composed in position: smooth steering, light inputs, and calm power application.

You’ll ride 90.9 km with ~743 m of rolling elevation, so your power should look like controlled effort rather than big spikes on every rise. With wind typical at ~6.3 m/s from the SW, expect the most impact on exposed sections—hold steady on the crosswind/into-wind portions and avoid sprinting off the back of surges. Fuel and hydration should be consistent using the target: 90 g carbs per hour, 600 mg sodium per hour, and about 500 ml fluid per hour. Aim to start this intake early (within the first hour window) and keep it regular through the rolling parts, because forcing it later after the legs accumulate fatigue is harder.

Transition off the bike (T2) is about staying balanced while your legs re-adapt. Focus on a smooth first 1–2 km: quick cadence, gentle acceleration, and avoid the temptation to over-stride when adrenaline feels high. If you feel heavy calves/quads, shorten stride slightly and concentrate on rhythm—your pacing early determines whether you can maintain form later.

You’ll run 21.1 km with elevation profile listed as unknown, so treat it as a pacing race until you learn how the course feels mile to mile. With moderate heat and SW wind typical, manage how hard you chase splits—if the wind hits your face, breathing can change quickly, so stay disciplined and “run your plan” rather than reacting to conditions. Keep fueling steady after the bike using your race-hour targets as a guide (carbs, sodium, and fluids). The most reliable approach is to keep intake small and frequent rather than large gaps, so your stomach and energy don’t dip during the middle miles.