TSUN · USA
Mark is a swimmer from the United States whose official competitive record spans 9 seasons, 20 years and 11 meets.
His recorded career begins in 2005 in 0721iglachs, where he raced the 200 backstroke in 2:42.23.
His signature event is the 200 freestyle, his reference distance in freestyle, ahead of the 1500 freestyle and 400 freestyle. Freestyle is the backbone of the whole record: 11 recorded swims.
His fastest 200 freestyle stands at 2:24.48, set in long course (50 m) at worlds06.
After a 6-year break between 2018 and 2024, he came back to racing and the record picks up again in 2024.
Latest competition: 2024062024spnty, on June 20, 2024. He closes this record with 21 current event personal bests, across 21 verified official swims in competitions governed by U.S. Masters Swimming.