Rudy Markussen has four losses against four opponents on his boxing record. For a list of Markussen's best fights, refer to "Best fights of Rudy Markussen".
On December 12, 2012 Rudy Markussen faced off against Patrick Nielsen in a super-middleweight bout at age 35. He was coming in with a record of 39-4 (26). Markussen lost the fight via 3rd-round TKO.
On February 18, 2012 Rudy Markussen faced off against Brian Magee in a super-middleweight bout at age 34. He was coming in with a record of 37-3 (24), and Magee was 36 years old and with a record of 35-4-1 (24). Markussen lost the fight via 5th-round TKO.
On October 14, 2006 Rudy Markussen faced off against Sergey Tatevosyan in a super-middleweight bout at age 29. He was coming in with a record of 33-2 (20), and Tatevosyan was 33 years old and with a record of 25-6 (13). Markussen lost the fight via 7th-round KO.
On November 16, 2002 Rudy Markussen faced off against Sven Ottke in a super-middleweight bout at age 25. He was coming in with a record of 27-1 (16), and Ottke was 35 years old and with a record of 28-0 (6). Markussen lost the fight via 12-round unanimous decision.