Particularly known for his impressive pressing ability and prowess in various stone and moving events, Kieliszkowski is the current world record holder of the Cyr dumbbell press for maximum weight,[4] the 400 kg (882 lb) timber carry farmer's walk (raw grip) for time,[5] the 450 kg (992 lb) car walk for time,[6] the Odd Haugen tombstone to shoulder for reps,[7] and replica Steinstossen strongman events.
Strongman career
Kieliszkowski had an interest in strength sports in high school. He then became interested in strongman, specifically, at the age of 17 after taking part in a strongman competition organised by a friend. Mateusz achieved his first big success by winning the 2014 Arnold Amateur Strongman World Championships which allowed him to compete in the professional 2015 Arnold Strongman Classic,[8] where he would place 3rd.[9]
In 2017, he would win his first international competition, the Arnold Africa. He would place 4th at the Arnold Strongman Classic and 6th at the World's Strongest Man that year.
In 2018, Mateusz would podium for the first time at World's Strongest Man, finishing 2nd behind Hafþór Júlíus Björnsson. He also came in 4th at the Arnold Strongman Classic that year. He would also win two Giants Live Competitions that year.
In 2019, Mateusz would again finish 2nd at the World's Strongest Man, this time coming behind the champion Martins Licis. He would also finish in 3rd at the Arnold Strongman Classic and 2nd at Europe's Strongest Man.
In March 2020, despite winning four events, Mateusz would finish 2nd at the Arnold Strongman Classic to defending champion Hafþór Júlíus Björnsson.[13] He would miss World's Strongest Man for the next three years due to a triceps injury and complications with the surgery.
In March 2023, Mateusz returned to the Arnold Strongman Classic competition after a 3-year absence and finished 2nd to Mitchell Hooper.[16] In April 2023, Mateusz returned to World's Strongest Man for the first time since 2019.[17] However, he struggled with injuries and went out in the group stage for the first time in his career. Mateusz competed at the Rogue Invitational and finished 3rd despite zeroing the first event.[18]
In 2024, Kieliskowski started his strongman season coming 2nd at the Arnold Strongman Classic. However, he did not participate in either the 2024 Europe's Strongest Man, the 2024 World's Strongest Man or the 2024 Strongest Man on Earth competitions due to an Achilles tendon injury.[19] Mateusz returned in November and won the Magnús Ver Magnússon Strongman Classic in Iceland.
Personal records
Deadlift with straps and suit – 420 kg (926 lb) (2019 World's Ultimate Strongman)[20]
Elephant bar Deadlift raw with straps – 402 kg (886 lb) (2020 Arnold Strongman Classic)
