As I computed in my previous post Size matters, in most pure sprint swimming disciplines the tallest usually win, e.g. freestyle (front crawl) and backstroke.
But today, it has been proven, that in swims, using a lot of muscle power height is not the most essential quality.
WOMEN’S 100m backstroke final at the Goldcoast 2018
1. Kylie Masse (CAN): 58.63 (GR) (1,73m)
2. Emily Seebohm (AUS): 58.66 (1.80m)
3. Taylor Ruck (CAN): 58.97 (1.80m)