On August 11, 2007, a 35-year-old Gerry Peñalosa (51-6-2, 34 KOs) got a shot at the WBO bantamweight title held by 25-year-old Mexican boxer Jhonny González (34-5, 29 KOs).
Peñalosa came in to the fight on a 1-fight losing streak with a 57% KO rate, and was fighting after a gap of 4 months and 25 days. González was on a 1-fight win streak with a 74% KO rate, and fighting after a layoff of 4 months and 12 days.
Gerry Peñalosa stopped the champion via KO in the 7th round of the 12-round world-title fight, and is crowned the new WBO bantamweight champion. Peñalosa improves his record to 52-6-2 (35 KOs), while González adds a loss to his record at 34-6.
On April 6, 2008, Gerry Peñalosa and Chaiya Pothang met again in a rematch.
Peñalosa came in to the fight on a 1-fight win streak with a 58% KO rate, and was fighting after a gap of 7 months and 26 days.
In the rematch, Gerry Peñalosa stopped Chaiya Pothang via TKO in the 8th round of the 12-round world-title fight, and successfully defended his WBO bantamweight title. Peñalosa improves his record to 53-6-2 (36 KOs)
On June 14, 1997, the 24-year-old WBC super-flyweight world champion, Gerry Peñalosa (36-1-1, 24 KOs), faced Seung-Koo Lee, in a title defense fight.
Peñalosa came in to the fight on a 17-fight win streak with a 63% KO rate, and was fighting after a gap of 3 months and 25 days.
Gerry Peñalosa stopped Seung-Koo Lee via KO in the 9th round of the 12-round world-title fight, and successfully defended his WBC super-flyweight title. Peñalosa improves his record to 37-1-1 (25 KOs)
On November 23, 1997, the 25-year-old WBC super-flyweight world champion, Gerry Peñalosa (38-1-1, 25 KOs), faced Young-Joo Choo, in a title defense fight.
Peñalosa came in to the fight on a 19-fight win streak with a 62% KO rate, and was fighting after a gap of 3 months and 18 days.
Gerry Peñalosa stopped Young-Joo Choo via KO in the 10th round of the 12-round world-title fight, and successfully defended his WBC super-flyweight title. Peñalosa improves his record to 39-1-1 (26 KOs)
On November 25, 2000, a 28-year-old Gerry Peñalosa (41-3-2, 28 KOs) and Chaiya Pothang met in the ring in a super-flyweight bout.
Peñalosa came in to the fight on a 1-fight win streak with a 60% KO rate, and was fighting after a gap of 5 months and 29 days.
Gerry Peñalosa stopped Chaiya Pothang via TKO in the 6th round. Peñalosa improves his record to 42-3-2 (29 KOs)
On February 20, 1997, a 24-year-old Gerry Peñalosa (35-1-1, 24 KOs) got a shot at the WBC super-flyweight title held by Hiroshi Kawashima.
Peñalosa came in to the fight on a 16-fight win streak with a 64% KO rate, and was fighting after a gap of 3 months and 11 days.
Gerry Peñalosa defeated Hiroshi Kawashima via split decision and wins the WBC title — in his first world-title fight. Peñalosa improves his record to 36-1-1
On May 5, 2001, a 28-year-old Gerry Peñalosa (42-3-2, 29 KOs) and Keiji Yamaguchi met in the ring in a super-flyweight bout.
Peñalosa came in to the fight on a 2-fight win streak with a 61% KO rate, and was fighting after a gap of 5 months and 10 days.
Gerry Peñalosa stopped Keiji Yamaguchi via TKO in the 1st round. Peñalosa improves his record to 43-3-2 (30 KOs)
On March 5, 1994, a 21-year-old Gerry Peñalosa (24-1-1, 13 KOs) and In-Man Chang met in the ring for the 2nd time,.
Peñalosa came in to the fight on a 5-fight win streak with a 50% KO rate, and was fighting after a gap of 5 months and 15 days.
In the rematch, Gerry Peñalosa stopped In-Man Chang via KO in the 3rd round. Peñalosa improves his record to 25-1-1 (14 KOs)
On May 27, 2000, a 27-year-old Gerry Peñalosa (40-3-2, 27 KOs) and Pone Saengmorakot met in the ring in a super-flyweight bout.
Peñalosa came in to the fight on a 1-fight losing streak with a 60% KO rate, and was fighting after a gap of 4 months and 25 days.
Gerry Peñalosa stopped Pone Saengmorakot via TKO in the 6th round. Peñalosa improves his record to 41-3-2 (28 KOs)
On March 17, 2007, a 34-year-old Gerry Peñalosa (51-5-2, 34 KOs) got a shot at the super-bantamweight WBO title held by 26-year-old Mexican boxer Daniel Ponce de León (30-1, 28 KOs).
Peñalosa came in to the fight on a 5-fight win streak with a 58% KO rate, and was fighting after a gap of 4 months and 24 days. León was on a 6-fight win streak with a 90% KO rate, and fighting after a layoff of 4 months and 24 days.
Daniel Ponce de León defeated Gerry Peñalosa via unanimous decision and successfully defended his WBO super-bantamweight title. León improves his record to 31-1, while Peñalosa adds a loss to his record at 51-6-2.