On March 2, 2012, a 29-year-old Sonny Boy Jaro (33-10-5, 23 KOs) got a shot at the WBC and The Ring flyweight titles held by 34-year-old Thai boxer Pongsaklek Wonjongkam (83-3-2, 43 KOs).
Jaro came in to the fight on a 4-fight win streak with a 47% KO rate, and was fighting after a gap of 1 month and 3 days. Wonjongkam was on a 0-fight win streak with a 48% KO rate, and fighting after a layoff of 2 months and 8 days.
Sonny Boy Jaro stopped the champion via TKO in the 6th round of the 12-round world-title fight, winning the first world titles of his career, and is crowned the new WBC and The Ring flyweight champion. Jaro improves his record to 34-10-5 (24 KOs), while Wonjongkam adds a loss to his record at 83-4-2.
On December 13, 2011, a 29-year-old Sonny Boy Jaro (31-10-5, 21 KOs) and Allan Ranada met in the ring.
Jaro came in to the fight on a 2-fight win streak with a 45% KO rate, and was fighting after a gap of 5 months and 25 days.
Sonny Boy Jaro stopped Allan Ranada via KO in the 3rd round. Jaro improves his record to 32-10-5 (22 KOs)
On September 27, 2008, a 26-year-old Sonny Boy Jaro (26-6-5, 16 KOs) got a shot at the light-flyweight WBC title held by 29-year-old Mexican boxer Édgar Sosa (32-5, 17 KOs).
Jaro came in to the fight on a 3-fight win streak with a 43% KO rate, and was fighting after a gap of 3 months and 7 days. Sosa was on a 20-fight win streak with a 45% KO rate, and fighting after a layoff of 3 months and 13 days.
Édgar Sosa defeated Sonny Boy Jaro via unanimous decision and successfully defended his WBC light-flyweight title. Sosa improves his record to 33-5, while Jaro adds a loss to his record at 26-7-5.
On October 28, 2007, a 25-year-old Sonny Boy Jaro (23-6-5, 14 KOs) and Alfred Nagal met in the ring for the 2nd time, in a light-flyweight bout.
Jaro came in to the fight on a 1-fight losing streak with a 41% KO rate, and was fighting after a gap of 4 months and 27 days.
In the rematch, Sonny Boy Jaro stopped Alfred Nagal via TKO in the 1st round. Jaro improves his record to 24-6-5 (15 KOs)
On December 10, 2005, a 23-year-old Sonny Boy Jaro (19-4-3, 11 KOs) and Kengkart Sakpracha met in the ring in a light-flyweight bout.
Jaro came in to the fight on a 1-fight win streak with a 42% KO rate, and was fighting after a gap of 1 month and 12 days.
Sonny Boy Jaro stopped Kengkart Sakpracha via KO in the 1st round. Jaro improves his record to 20-4-3 (12 KOs)
On February 6, 2005, a 22-year-old Sonny Boy Jaro (15-2-3, 8 KOs) and Jojo Brandon met in the ring in a light-flyweight bout.
Jaro came in to the fight on a 2-fight win streak with a 40% KO rate, and was fighting after a gap of 2 months and 1 day.
Sonny Boy Jaro stopped Jojo Brandon via KO in the 2nd round. Jaro improves his record to 16-2-3 (9 KOs)
On March 21, 2014, a 31-year-old Sonny Boy Jaro (35-13-5, 25 KOs) and Jovel Romasasa met in the ring in a super-bantamweight bout.
Jaro came in to the fight on a 1-fight win streak with a 47% KO rate, and was fighting after a gap of 2 months and 10 days.
Sonny Boy Jaro stopped Jovel Romasasa via TKO in the 1st round. Jaro improves his record to 36-13-5 (26 KOs)
On June 18, 2011, a 29-year-old Sonny Boy Jaro (30-10-5, 20 KOs) and Rey Megrino met in the ring in a light-flyweight bout.
Jaro came in to the fight on a 1-fight win streak with a 44% KO rate, and was fighting after a gap of 1 month and 4 days.
Sonny Boy Jaro stopped Rey Megrino via TKO in the 4th round. Jaro improves his record to 31-10-5 (21 KOs)
On February 29, 2008, a 25-year-old Sonny Boy Jaro (24-6-5, 15 KOs) and Julius Alcos met in the ring in a light-flyweight bout.
Jaro came in to the fight on a 1-fight win streak with a 42% KO rate, and was fighting after a gap of 4 months and 1 day.
Sonny Boy Jaro stopped Julius Alcos via TKO in the 4th round. Jaro improves his record to 25-6-5 (16 KOs)
On May 31, 2010, a 28-year-old Sonny Boy Jaro (28-8-5, 18 KOs) and Armando dela Cruz met in the ring in a light-flyweight bout.
Jaro came in to the fight on a 1-fight losing streak with a 43% KO rate, and was fighting after a gap of 6 months and 10 days.
Sonny Boy Jaro stopped Armando dela Cruz via KO in the 6th round. Jaro improves his record to 29-8-5 (19 KOs)