Starting his career aged 19, Hasselbach's record stands at 6-1-0 so far. The longest win streak that Hasselbach has ever recorded was between November 2006 and July 2009 when it totaled 5 wins. Hasselbach's longest KO streak is 2 fights long.
In a great debut, Hasselbach took on Tom Pudler in a 4 round fight, becoming the 2nd person to stop Pudler in his 2 fight career to date. Continuing on from his successful debut, Hasselbach won his next 4 fights taking his record to 4 wins.
Next was Tahir Celic on December 14th, 2007 where Hasselbach took the win continuing his unbeaten streak. Hasselbach was the first person to go the distance with Celic. Hasselbach fought Tahir Celic in 2007, the result was a solid win to Hasselbach.
Next was Ehsan Adibifar on April 4th, 2009 where Hasselbach took the win continuing his unbeaten streak. Ehsan Adibifar was Hasselbach's next opponent of his career in 2009. The fight was scheduled for 4 and Hasselbach was the 5th person to go the distance with Adibifar. Hasselbach then went on to face Mohammed Laarroussi where he added another win to his tally.
On December 11th, 2009, Hasselbach took on and was defeated by Vaclav Bodack in his first career defeat meaning his career tally went to 5-1-0. Hasselbach's first defeat came over the full distance against Vaclav Bodack on December 11th, 2009. The fight went to the judges in a PTS loss for Hasselbach.
Viktor Hasselbach added another win to his record by beating Petr Gyna on February 1st, 2014, upping his record to 6 wins. Hasselbach out-boxed Gyna over 4 rounds in his most recent performance, taking the win via UD and moving on to bigger and better things.