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How to improve your half Ironman swim time – tips for swimming faster over 1.9km distance

Get tips, advice and example swim workouts to help you improve your half Ironman swim split from a top level swim coach.

By Jenny Lucas-Hill

Content Director

Last updated -

16 Jul 2025

The 1.9km swim at the start of a half Ironman/middle distance triathlon hits that tricky not-so-sweet spot. It’s long enough that you need a solid base of endurance. But short enough that, if you want...

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Written by

Jenny Lucas-Hill

Jenny Lucas-Hill was Content Director at TRI247 until Sept 2025. A five-time Ironman finisher, she's also a qualified personal trainer and sports massage therapist.

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How to improve your half Ironman swim time – tips for swimming faster over 1.9km distance

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