The fastest 100 metre hurdles wearing swim fins (female) is 19.278 seconds and was acheived by Veronica Torr (New Zealand) on the set of NZ Smashes Guinness World Records at the Mt Smart Stadium in Auckland, New Zealand, on 24 August 2009
Visibility: 309755
Duration: 1m 58s
Rating: 819
Ah, nevermind. Even if I gamed the system to classify my runners' shoes as swim fins, I wouldn't make a 100m hurdle in less than 20 seconds anyway.