Russia’s Stanislav after clocking his 49.32 world record in the men’s 100 meter backstroke at the Rijeka 2008 European Short Course swimming championships, see result list here. It has been improved quite a lot since then, first Aschwin Wildeboer (ESP) 49.20 at the Spanish Short Course Championships a week later, then Arkady Vyatchanin (RUS) 49.17 in the Istanbul 2009 Europeans semifinal, then Vyatchanin *and* Donets 48.97 in the Istanbul 2009 final, and then Nick Thoman 48.94 at the Duel in the Pool in Manchester a few days later. And then it stopped, with the fall of the supersuits, see progression here on SwimRankings.
