PKHK · CZE
Jonáš is a swimmer from Czechia, a butterfly specialist, whose official competitive record spans 4 seasons, 5 years and 17 meets.
His recorded career begins in 2022, and one of his earliest marks still on file is the 1500 butterfly in 19:37.41, raced in Trutnov. He started out alongside Plavecký klub Hradec Králové z.s..
His signature event is the 200 butterfly, the event he has raced the most, followed by the 100 butterfly and 50 butterfly. Butterfly is the backbone of the whole record: 17 meets and 19 recorded swims.
His fastest 200 butterfly stands at 2:26.27, set in long course (50 m) at Plzeň - Slovany.
After a 2-year break between 2022 and 2024, he came back to racing and the record picks up again in 2024. 2026 is the busiest season on record, with 11 verified individual swims.
Those meets span 11 different venues (Trutnov, Pardubice, Česká Třebová and Aquacentrum Pardubice…). He has raced for PKHK.
Still active: the directory includes official activity in the 2026 season. The last race on record is dated June 27, 2026 in Praha - Podolí, with 1 swim: 1:11.07 in the 100 butterfly, all in long course (50 m). He holds 14 current event personal bests and 18 all-time PB improvements across 24 verified official swims.