PKLbc · CZE
Jakub is a swimmer from Czechia, a butterfly specialist and a distance swimmer, whose official competitive record spans 5 seasons and 10 meets.
His recorded career begins in 2022 in Liberec, where he raced the 1500 butterfly in 20:23.44.
His signature event is the 800 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 800 butterfly stands at 9:53.01, set in long course (50 m) at Liberec.
The record runs unbroken from 2022 to 2026: 5 consecutive seasons without a single missing year.
Those meets span 6 different venues (Liberec, Plzeň - Slovany, Praha - Podolí and Praha - Radlice…).
Still active: the directory includes official activity in the 2026 season. Latest competition: Plzeň, on October 17, 2026. He holds 16 current event personal bests across 16 verified official swims.