Here is a list of Maguire's best fights. For a list of Maguire's losses, refer to "John Maguire Losses".
On April 14, 2012 John Maguire faced off against DaMarques Johnson in a welterweight bout at age 28. He was coming in with a record of 18-3 (12), and Johnson was 29 years old and with a record of 16-9 (14). Maguire stopped DaMarques Johnson via submission.
On November 5, 2011 John Maguire faced off against Justin Edwards in a welterweight bout at age 28. He was coming in with a record of 17-3 (11), and Edwards was 28 years old and with a record of 7-1 (6). Maguire won the fight via 3-round unanimous decision.
On September 18, 2010 John Maguire fought Henrique Santana in a welterweight title fight for Santana's UCMMA Championship title. Maguire was 27 years old and with a record of 13-3 (9). Maguire stopped Henrique Santana via 2nd-round TKO and is crowned the new welterweight world champion.
