IRONMAN 70.3 Louisville

IRONMAN 70.3 Louisville course: how fast are the swim, bike and run?

IRONMAN 70.3 Louisville: 0.4% slower than the median course (bike 1.1% faster, run 4.4% slower, swim 2.3% faster). The same athletes' times compared across every course, and a time predictor.

Louisville, Kentucky, USA; 60 World Championship slots; a course 0.4% slower than the median one; 916 finishers in 2025.

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• Slots and qualifying times
• How 2025 played
• 2025 results
• Who races
• Course speed
• Over the years
• Every race