DeNá · CZE
Jiří is a swimmer from Czechia, a butterfly specialist and a sprinter, whose official competitive record spans 2 seasons and 8 meets.
His recorded career begins in 2025 in Mladá Boleslav, where he raced the 50 butterfly in 29.81.
His signature event is the 50 butterfly, his reference distance in butterfly, ahead of the 400 butterfly and 200 butterfly. Butterfly is the backbone of the whole record: 11 recorded swims.
His fastest 50 butterfly stands at 29.72, set in long course (50 m) at Ústí nad Labem - Plavecká hala Klíše.
Those meets span 8 different venues (Mladá Boleslav, Ústí Nad Labem - Plavecká Hala Klíše, Česká Třebová and Ústí Nad Labem , Pa Klíše…). He has raced for DeNá.
Still active: the directory includes official activity in the 2026 season. Latest competition: Aquacentrum Pardubice, on October 24, 2026. He holds 15 current event personal bests across 15 verified official swims.