Marcus Aurélio has 10 losses against 10 opponents on his MMA record. For a list of Aurélio's best fights, refer to "Best fights of Marcus Aurélio".
On June 16, 2012 Marcus Aurélio faced off against Lyle Beerbohm in a lightweight bout at age 38. He was coming in with a record of 21-10 (17), and Beerbohm was 33 years old and with a record of 18-2 (15). Aurélio lost the fight via 3-round unanimous decision.
On September 25, 2010 Marcus Aurélio faced off against Shinya Aoki in a lightweight bout at age 37. He was coming in with a record of 20-9 (16), and Aoki was 27 years old and with a record of 24-5 (15). Aurélio lost the fight via 2-round unanimous decision.
On August 29, 2009 Marcus Aurélio faced off against Evan Dunham in a lightweight bout at age 36. He was coming in with a record of 18-8 (14), and Dunham was 27 years old and with a record of 8-0 (7). Aurélio lost the fight via 3-round split decision.
On October 25, 2008 Marcus Aurélio faced off against Hermes França in a lightweight bout at age 35. He was coming in with a record of 16-7 (12), and França was 34 years old and with a record of 18-7 (17). Aurélio lost the fight via 3-round unanimous decision.
On July 5, 2008 Marcus Aurélio faced off against Tyson Griffin in a lightweight bout at age 34. He was coming in with a record of 16-6 (12), and Griffin was 24 years old and with a record of 11-1 (8). Aurélio lost the fight via 3-round unanimous decision.
On August 25, 2007 Marcus Aurélio faced off against Clay Guida in a lightweight bout at age 34. He was coming in with a record of 14-5 (10), and Guida was 25 years old and with a record of 21-8 (15). Aurélio lost the fight via 3-round split decision.
On November 5, 2006 Marcus Aurélio fought Takanori Gomi in a lightweight title fight for Gomi's Pride Championship title. Aurélio was 33 years old and with a record of 14-4 (10), and Gomi was 28 years old and with a record of 25-3 (13). Aurélio lost the fight via 2-round split decision.
On June 4, 2006 Marcus Aurélio faced off against Mitsuhiro Ishida in a lightweight bout at age 32. He was coming in with a record of 14-3 (10), and Ishida was 27 years old and with a record of 11-2-1 (4). Aurélio lost the fight via 2-round unanimous decision.
On July 19, 2004 Marcus Aurélio faced off against Dokonjonosuke Mishima in a lightweight bout at age 30. He was coming in with a record of 11-2 (10), and Mishima was 32 years old and with a record of 15-3-2 (9). Aurélio lost the fight via 2-round split decision.
On August 10, 2003 Marcus Aurélio faced off against Antonio McKee in a lightweight bout at age 29. He was coming in with a record of 5-1 (5). Aurélio lost the fight via 2-round split decision.
