Although Mariusz Wach has been beaten in his career, with a fight count of 34 fights and a 12 year long career he approaches the end of his career with a record of 31-3-0. He made his debut in April 2005 at the age of 25. He started his best winning streak on April 2005 however, this came to an end on March 2012. In this period he won a total of 27 fights.
In a memorable debut Wach gained a TKO win against Deniss Melniks in a 4 round contest, becoming the 2nd person to stop Melniks. Wach continued on his journey to success by fighting 6 times in 2005, 7 times in 2006 and 4 times through 2007 and 2008 beating fighters such as Eduardo Franca, Eric Boose and Arthur Cook in his next 17 fights.
On October 27th, 2005 Wach fought and beat Sedrak Agagulyan (1-9-0) to continue his unbeaten streak. Wach was the 3rd person to go the distance with Agagulyan. Wach fought Sedrak Agagulyan in 2005, the result was via UD. Wach's win streak of 4 rose to 10 following 6 great wins, becoming the 5th person to go the distance with Tomas Mrazek, 5th person to stop Oleg Belikov and 5th person to defeat Adele Olakanye.
Wach then went on to fight and beat Arthur Cook on June 23rd, 2006 maintaining his unbeaten record. Becoming the first person to stop Arthur Cook, Wach beat Cook via RTD in the 9th round of a 10 round fight. Wach's win streak of 11 rose to 27 following 16 great wins, becoming the 3rd person to stop Jason Gavern (Round 6 TKO), 4th person to go the distance with Yavor Marinchev and 5th person to stop Tye Fields.
The first defeat of Wach's career came against Wladimir Klitschko on November 10th, 2012. This took his career record to 27-1-0. Taking the first setback of his career, the November 10th, 2012 Klitschko defeat went the full distance and ended via UD. Fights against Travis Walker, Gbenga Oluokun, Konstantin Airich and 1 other followed where he won all 4 fights taking his winning streak to 31 wins.
On November 4th, 2015, Wach took on and was defeated by Alexander Povetkin meaning his career tally went to 31-2-0. Wach was beaten by Alexander Povetkin in the 12th round. The win came via TKO in the 12th round. This was Wach's first stoppage defeat.
Wach went into his next fight against Jarrell Miller on November 11th, 2017 with a career record of 31 wins. Left wondering where Wach's career will go next, Miller became only the 2nd man to stop Wach in the 9th round of a 12 round fight.