Here is a list of Jong's best fights. For a list of Jong's losses, refer to "Martijn de Jong Losses".
On November 12, 2000 Martijn de Jong faced off against Yuki Sasaki in a middleweight bout at age 26. He was coming in with a record of 6-4 (4), and Sasaki was 24 years old and with a record of 6-2 (4). Jong stopped Yuki Sasaki via submission.