Here is a list of Proksa's best fights. For a list of Proksa's losses, refer to "Grzegorz Proksa Losses".
On October 1, 2011 Grzegorz Proksa faced off against Sebastian Sylvester in a middleweight bout at age 26. He was coming in with a record of 26-0 (19), and Sylvester was 31 years old and with a record of 34-4-1 (16). Proksa stopped Sebastian Sylvester via retirement.