SKS · CZE
Marek is a swimmer from Czechia, a butterfly specialist and a sprinter, whose official competitive record spans 5 seasons and 7 meets.
His recorded career begins in 2021 in Praha - Eden, where he raced the 1500 butterfly in 25:35.77.
His signature event is the 100 butterfly, his reference distance in butterfly, ahead of the 50 butterfly and 1500 butterfly. Butterfly is the backbone of the whole record: 6 recorded swims.
His fastest 100 butterfly stands at 1:16.98, set in long course (50 m) at Praha - Podolí.
The record runs unbroken from 2021 to 2025: 5 consecutive seasons without a single missing year.
Those meets span 4 different venues (Praha - Eden, Praha - Radlice, Mladá Boleslav and Praha - Podolí).
Latest competition: Praha - Eden, on June 18, 2025. He closes this record with 8 current event personal bests, across 8 verified official swims.