On April 27, 2013, the 29-year-old WBO middleweight world champion, Peter Quillin (28-0, 20 KOs), faced Fernando Guerrero, in a title defense fight.
Quillin came in to the fight on a 28-fight win streak with a 71% KO rate, and was fighting after a gap of 6 months and 7 days.
Peter Quillin stopped Fernando Guerrero via TKO in the 7th round of the 12-round world-title fight, and successfully defended his WBO middleweight title. Quillin improves his record to 29-0 (21 KOs)
On October 20, 2012, a 29-year-old Peter Quillin (27-0, 20 KOs) got a shot at the WBO middleweight title held by 28-year-old Cameroonian boxer Hassan N'Dam N'Jikam (27-0, 17 KOs).
Quillin came in to the fight on a 27-fight win streak with a 74% KO rate, and was fighting after a gap of 4 months and 18 days. N'Jikam was on a 27-fight win streak with a 63% KO rate, and fighting after a layoff of 5 months and 16 days.
Peter Quillin defeated Hassan N'Dam N'Jikam via unanimous decision and wins the WBO title — in his first world-title fight. Quillin improves his record to 28-0, while N'Jikam adds a loss to his record at 27-1.
On October 26, 2013, the 30-year-old WBO middleweight world champion, Peter Quillin (29-0, 21 KOs), faced a 27-year-old Gabriel Rosado (21-6, 13 KOs), in a title defense fight.
Quillin came in to the fight on a 29-fight win streak with a 72% KO rate, and was fighting after a gap of 5 months and 29 days. Rosado was on a -1-fight win streak with a 48% KO rate, and fighting after a layoff of 5 months and 22 days.
Peter Quillin stopped Gabriel Rosado via TKO in the 10th round of the 12-round world-title fight, and successfully defended his WBO middleweight title. Quillin improves his record to 30-0 (22 KOs), while Rosado adds a loss to his record at 21-7.
On April 19, 2014, the 30-year-old WBO middleweight world champion, Peter Quillin (30-0, 22 KOs), faced Lukáš Konečný, in a title defense fight.
Quillin came in to the fight on a 30-fight win streak with a 73% KO rate, and was fighting after a gap of 5 months and 24 days.
Peter Quillin defeated Lukáš Konečný via unanimous decision and successfully defended his WBO middleweight title. Quillin improves his record to 31-0
On April 29, 2011, a 27-year-old Peter Quillin (23-0, 17 KOs) and Jesse Brinkley met in the ring in a super-middleweight bout.
Quillin came in to the fight on a 23-fight win streak with a 73% KO rate, and was fighting after a gap of 2 months and 18 days.
Peter Quillin stopped Jesse Brinkley via TKO in the 3rd round. Quillin improves his record to 24-0 (18 KOs)
On September 12, 2015, a 32-year-old Peter Quillin (31-0-1, 22 KOs) and a 23-year-old Australian boxer Michael Zerafa (17-1, 9 KOs) met in the ring.
Quillin came in to the fight after a draw in his last fight with a 68% KO rate, and was fighting after a gap of 5 months and 1 day. Zerafa was on a 2-fight win streak with a 50% KO rate, and fighting after a layoff of 5 months and 16 days.
Peter Quillin stopped Michael Zerafa via KO in the 5th round. Quillin improves his record to 32-0-1 (23 KOs), while Zerafa adds a loss to his record at 17-2.
On November 5, 2011, a 28-year-old Peter Quillin (25-0, 19 KOs) and Craig McEwan met in the ring.
Quillin came in to the fight on a 25-fight win streak with a 76% KO rate, and was fighting after a gap of 3 months and 13 days.
Peter Quillin stopped Craig McEwan via TKO in the 6th round. Quillin improves his record to 26-0 (20 KOs)
On April 26, 2007, a 23-year-old Peter Quillin (10-0, 9 KOs) and Alexander Pacheco Quiroz met in the ring.
Quillin came in to the fight on a 10-fight win streak with a 90% KO rate, and was fighting after a gap of 1 month and 16 days.
Peter Quillin stopped Alexander Pacheco Quiroz via TKO in the 1st round. Quillin improves his record to 11-0 (10 KOs)
On February 22, 2007, a 23-year-old Peter Quillin (8-0, 7 KOs) and Steve Walker met in the ring.
Quillin came in to the fight on a 8-fight win streak with a 87% KO rate, and was fighting after a gap of 3 months and 19 days.
Peter Quillin stopped Steve Walker via TKO in the 1st round. Quillin improves his record to 9-0 (8 KOs)
On November 3, 2006, a 23-year-old Peter Quillin (7-0, 6 KOs) and David Estrada met in the ring.
Quillin came in to the fight on a 7-fight win streak with a 85% KO rate, and was fighting after a gap of 1 month and 14 days.
Peter Quillin stopped David Estrada via TKO in the 1st round. Quillin improves his record to 8-0 (7 KOs)