PKHK · CZE
Jáchym is a swimmer from Czechia, a butterfly specialist, whose official competitive record spans 4 seasons and 12 meets.
His recorded career begins in 2023 in Hradec Králové, where he raced the 800 butterfly in 11:37.56. He started out alongside Plavecký klub Hradec Králové z.s..
His signature event is the 100 butterfly, the event he has raced the most, followed by the 200 butterfly and 50 butterfly. Butterfly is the backbone of the whole record: 11 meets and 20 recorded swims.
His fastest 100 butterfly stands at 1:00.77, set in long course (50 m) at Brno-Lužánky.
The record runs unbroken from 2023 to 2026: 4 consecutive seasons without a single missing year. 2026 is the busiest season on record, with 14 verified individual swims.
Those meets span 7 different venues (Trutnov, Hradec Králové, Česká Třebová and Jihlava…). He has raced for PKHK.
Still active: the directory includes official activity in the 2026 season. The last race on record is dated September 19, 2026 in Jihlava, with 2 swims: 1:20.24 in the 100 butterfly and 2:31.65 in the 200 individual medley, all in short course (25 m) and 1 PB improvement. He holds 14 current event personal bests and 20 all-time PB improvements across 23 verified official swims.