Jan_Šefl
Jan Šefl
Czech swimmer
Jan Šefl (born 10 May 1990) is a Czech swimmer. He competed in the men's 50 metre butterfly event at the 2017 World Aquatics Championships.[1][2] He represented the Czech Republic in men's 100 metre butterfly event at the 2020 Summer Olympic Games in Tokyo.[3][4] He holds the men's Czech national record in the event.[5]