IRONMAN 70.3 Kraichgau
Sunday, 23 May 2027
IRONMAN 70.3 Kraichgau is a 1.895 km freshwater swim, an 88.4 km hilly bike with 862 m gain, and a rolling 21.2 km run—paced by steady fueling targets and a typical west wind.
- 👍 Conditions are kind — the 650 ml/h fluid, 750 mg/h sodium and 90 g/h carbs baseline should hold. Fine-tune to your own thirst and sweat rate.
Typical 10-year conditions, not a forecast. Water temperature and the wetsuit ruling are set on race morning — check the IRONMAN race guide →
Worlds qualification — slots TBAsee who qualified →Arrive early enough to check your entry/exit points and confirm where you’ll be in the water based on your swim seed. Get a short warm-up on the beach (a few minutes of easy movement plus 4–6 x 20–30 seconds faster/controlled efforts) so your first strokes feel smooth, not rushed. When you start, find clean water immediately: settle your breathing rhythm in the first few minutes and avoid standing fights—your job is to get into position and lock a steady cadence before you start working your pace.
The swim is 1.895 km in freshwater where temperature varies, so expect the first few minutes to feel sharper or slower depending on conditions. With typical west winds over the venue, plan for occasional surface chop and small current effects around turns/edges—keep your body position high and don’t overcorrect with every wave. Aim to swim efficiently and consistently rather than sprinting the early meters; sighting should be frequent enough to avoid drifting but not so often you break rhythm. Fueling during the swim is minimal—focus on executing the swim and going into T1 with the mindset to start strong but controlled on the bike.
Finish the swim calm and organized—secure your cadence to the last stretch, then transition focus immediately to getting your legs ready for the bike.
Your transition flow should be: steady exit → quick towel/transition setup → shoes/kit sorted before you fully relax. Don’t try to “save” time by skipping essentials—make sure your bike mount is clean and your first minute on the bike is controlled. Off the swim, your heart rate may feel elevated, so start with a smooth 8–12 minute build (even if you feel good) and settle into your climbing rhythm early for the hilly 88.4 km course.
The bike is 88.4 km with 862 m of elevation on a hilly/climbing profile, so expect repeated demand from changes in grade. With wind typical at 4.3 m/s from the W, use it to your advantage: on windy sections, keep your effort steady and maintain aerodynamic positioning; on calmer/lee moments, you can press the pedals briefly without spiking power. Fuel to the provided targets: aim for 90 g carbs per hour, 750 mg sodium per hour, and about 650 ml fluid per hour, distributed across the ride so you’re never chasing down hydration at the end of hard climbs. Prioritize taking in carbs and fluid consistently rather than waiting for “when it’s flat,” because the climbs will dry you out quickly and make late catch-up harder.
Two-bike takeaway: ride the hills by effort (not adrenaline), and keep fueling and drinking continuous so the last third isn’t a scramble.
In T2, think “smooth legs, smart start.” Get your heart rate down just enough to move well—then mount the run with a controlled first 1–3 km, because your legs will feel heavy after the climbing bike. Focus on quick but relaxed steps and an upright posture early; if you sprint the first stretch, the rolling 21.2 km can bite later.
The run is 21.2 km with 92 m elevation on a rolling profile, so you’ll feel repeated small rises and dips rather than one long grind. With moderate heat typical for this race window and a west wind around 4.3 m/s, expect cooling when the breeze hits you and warmer conditions when it drops—plan your pace to stay steady through the variations. Fuel early and often—use the same principle as on the bike: don’t wait until you feel depleted. Drink in response to how you’re tolerating the effort and heat, and keep carbs flowing consistently so you can keep form on the later rolling sections.
Run takeaway: control the first section, stay smooth over the rollers, and rely on consistent fueling so the final miles aren’t a decision-by-emotion.
Plan your effort and fueling for consistency: the hilly bike and rolling run make pacing-by-feeling unreliable—anchor to steady targets and practice your drink/carb timing.
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Weather is a 10-year climatology (typical, not a forecast). Course tracks are approximate, derived for planning — verify against the official course. Maps © OpenStreetMap. Not affiliated with or endorsed by the IRONMAN Group.