On November 12, 2011, a 40-year-old Joel Casamayor (38-5-1, 22 KOs) got a shot at the super-lightweight WBO title held by 28-year-old American boxer Timothy Bradley (27-0, 11 KOs).
Casamayor came in to the fight on a 1-fight win streak with a 50% KO rate, and was fighting after a gap of 8 months and 1 day. Bradley was on a 27-fight win streak with a 40% KO rate, and fighting after a layoff of 9 months and 14 days.
Timothy Bradley stopped Joel Casamayor via TKO in the 8th round of the 12-round world-title fight, and successfully defended his WBO super-lightweight title. Bradley improves his record to 28-0 (12 KOs), while Casamayor adds a loss to his record at 38-6-1.
On July 31, 2010, a 39-year-old Joel Casamayor (37-4-1, 22 KOs) and a 27-year-old American boxer Robert Guerrero (26-1-1, 18 KOs) met in the ring.
Casamayor came in to the fight on a 1-fight win streak with a 52% KO rate, and was fighting after a gap of 8 months and 25 days. Guerrero was on a 10-fight win streak with a 64% KO rate, and fighting after a layoff of 3 months and 1 day.
Robert Guerrero defeated Joel Casamayor via unanimous decision in the 10-round fight. Guerrero improves his record to 27-1-1, while Casamayor adds a loss to his record at 37-5-1.
On September 13, 2008, the 37-year-old The Ring lightweight world champion, Joel Casamayor (36-3-1, 22 KOs), faced a 35-year-old Mexican boxer Juan Manuel Márquez (48-4-1, 35 KOs), in a title defense fight.
Casamayor came in to the fight on a 5-fight win streak with a 55% KO rate, and was fighting after a gap of 5 months and 22 days. Márquez was on a -1-fight win streak with a 66% KO rate, and fighting after a layoff of 5 months and 29 days.
Juan Manuel Márquez stopped the champion via KO in the 11th round of the 12-round world-title fight, and is crowned the new The Ring lightweight champion. Márquez improves his record to 49-4-1 (36 KOs), while Casamayor adds a loss to his record at 36-4-1.
On December 4, 2004, a 33-year-old Joel Casamayor (31-2, 19 KOs) got a shot at the lightweight WBC and The Ring title held by 30-year-old Mexican boxer José Luis Castillo (50-6-1, 45 KOs).
Casamayor came in to the fight on a 1-fight win streak with a 57% KO rate, and was fighting after a gap of 5 months and 1 day. Castillo was on a 4-fight win streak with a 78% KO rate, and fighting after a layoff of 5 months and 29 days.
José Luis Castillo defeated Joel Casamayor via split decision and successfully defended his WBC and The Ring lightweight titles. Castillo improves his record to 51-6-1, while Casamayor adds a loss to his record at 31-3.
On March 6, 2004, Joel Casamayor and Diego Corrales met again in an immediate rematch.
Casamayor came in to the fight on a 4-fight win streak with a 61% KO rate, and was fighting after a gap of 5 months and 2 days. Corrales was on a -1-fight win streak with a 79% KO rate, and fighting after a layoff of 5 months and 2 days.
Diego Corrales defeated Joel Casamayor via split decision in the rematch. Corrales improves his record to 38-2, while Casamayor adds a loss to his record at 30-2.
On January 12, 2002, the 30-year-old WBA super-featherweight champion, Joel Casamayor (26-0, 16 KOs), and the 26-year-old WBO super-featherweight champion Acelino Freitas (30-0, 29 KOs) met in a title-unification fight.
Casamayor came in to the fight on a 26-fight win streak with a 61% KO rate, and was fighting after a gap of 3 months and 14 days. Freitas was on a 30-fight win streak with a 96% KO rate, and fighting after a layoff of 3 months and 14 days.
Acelino Freitas defeated Joel Casamayor via unanimous decision and successfully defended his WBO super-featherweight title. Freitas improves his record to 31-0, while Casamayor adds a loss to his record at 26-1.