On March 28, 2015, a 31-year-old William Prado (22-4-1, 15 KOs) and a 32-year-old Filipino boxer Nonito Donaire (33-3, 21 KOs) met in the ring in a super-bantamweight bout.
Prado came in to the fight on a 1-fight win streak with a 55% KO rate, and was fighting after a gap of 11 months and 16 days. Donaire was on a -1-fight win streak with a 58% KO rate, and fighting after a layoff of 5 months and 10 days.
Nonito Donaire stopped William Prado via TKO in the 2nd round. Donaire improves his record to 34-3 (22 KOs), while Prado adds a loss to his record at 22-5-1.
On June 29, 2013, a 29-year-old William Prado (21-3-1, 14 KOs) and Scott Quigg met in the ring.
Prado came in to the fight on a 2-fight win streak with a 56% KO rate, and was fighting after a gap of 1 month and 25 days.
William Prado lost to Scott Quigg via KO in the 3rd round, and adds an loss to his record at 21-4-1.
On October 5, 2012, a 28-year-old William Prado (19-2-1, 13 KOs) and Jeremy Parodi met in the ring in a super-bantamweight bout.
Prado came in to the fight on a 1-fight losing streak with a 59% KO rate, and was fighting after a gap of 2 months and 7 days.
William Prado lost to Jeremy Parodi via unanimous decision in the 12-round super-bantamweight fight, and adds an loss to his record at 19-3-1.
On July 28, 2012, a 28-year-old William Prado (19-1-1, 13 KOs) and Paulus Ambunda met in the ring in a bantamweight bout.
Prado came in to the fight on a 3-fight win streak with a 61% KO rate, and was fighting after a gap of 1 month and 19 days.
William Prado lost to Paulus Ambunda via unanimous decision in the 12-round bantamweight fight, and adds an loss to his record at 19-2-1.
On April 3, 2008, a 24-year-old William Prado (5-0, 4 KOs) and Cleber Correa dos Santos met in the ring in a bantamweight bout.
Prado came in to the fight on a 5-fight win streak with a 80% KO rate, and was fighting after a gap of 5 months and 3 days.
William Prado lost to Cleber Correa dos Santos via unanimous decision in the 10-round bantamweight fight, and adds an loss to his record at 5-1.