Having started off in the pro game in July 2010 and having built a perfect unbeaten record of 11-0-0, Krstacic (age 38) now looks to move into the later stages of his career and step up against some of the top prospects in the division. Between July 2010 and May 2018, Krstacic had his longest winning streak of 11 fights. In his 11 fights, his longest KO streak is 7 fights long.
Starting as he means to go on, Krstacic got off to an explosive start in his debut, defeating Jozef Kusmirek in 1 rounds and becoming the only person to have stopped Kusmirek to date. Maintaining a successful start proved easy for Krstacic with a further 6 wins, beating boxers such as Frank Pflegel, Robert Andrasik and Marco Heinichen.
Furthering his career, Krstacic fought Matthias Sandow on April 13th, 2014 and advanced his winning streak to 9 wins. The win happened in the 2nd round of a 10 round fight via KO.
Next was Jindrich Velecky on October 2nd, 2014 where Krstacic took the win continuing his unbeaten streak. Krstacic's PTS win against Jindrich Velecky came via judges decision of a 6 round fight. Krstacic became the 28th person to defeat Velecky and secured a great win.
Kristijan Krstacic retained his unbeaten record in his most recent fight by beating Ruben angel Mino on May 5th, 2018, increasing his record to 11 wins. Taking his total win streak to 11 wins, Krstacic defeated Mino in the 12 round fight. The win came via TKO in the 1st round. Krstacic was the 4th to stop Mino.