BiJa · CZE
John is a swimmer from Czechia, an individual medley specialist, whose official competitive record spans 4 seasons and 9 meets.
His recorded career begins in 2023 in Plavecký Areál Klíše - Ústí Nad Labem, where he raced the 200 individual medley in 3:10.68.
His signature event is the 1500 butterfly, his reference distance in butterfly, ahead of the 200 butterfly and 50 butterfly. Butterfly is the backbone of the whole record: 10 recorded swims.
His fastest 1500 butterfly stands at 21:16.59, set in long course (50 m) at Plzeň.
The record runs unbroken from 2023 to 2026: 4 consecutive seasons without a single missing year.
Those meets span 8 different venues (Plavecký Areál Klíše - Ústí Nad Labem, Plzeň, Ústí Nad Labem - Plavecká Hala Klíše and Česká Lípa…). He has raced for BiJa.
Still active: the directory includes official activity in the 2026 season. Latest competition: Plzeň - Slovany, on April 25, 2026. He holds 14 current event personal bests across 14 verified official swims.