Here is a list of Grundy's best fights. For a list of Grundy's losses, refer to "Mike Grundy Losses".
On March 16, 2019 Mike Grundy faced off against Nad Narimani in a featherweight bout at age 32. He was coming in with a record of 12-1 (9), and Narimani was 31 years old and with a record of 12-2 (7). Grundy stopped Nad Narimani via TKO.
On December 6, 2014 Mike Grundy faced off against Mike Cutting in a featherweight bout at age 27. He was coming in with a record of 2-0 (2). Grundy stopped Mike Cutting via submission.
On February 21, 2015 Mike Grundy faced off against Mamadou Gueye in a featherweight bout at age 27. He was coming in with a record of 3-0 (3). Grundy stopped Mamadou Gueye via submission.
On May 14, 2016 Mike Grundy faced off against Marley Swindells in a featherweight bout at age 29. He was coming in with a record of 5-1 (4). Grundy won the fight via 3-round unanimous decision.