On September 30, 2009, a 31-year-old Boonsai Sangsurat (63-5, 44 KOs) and Mikio Yasuda met in the ring.
Sangsurat came in to the fight on a 10-fight win streak with a 64% KO rate, and was fighting after a gap of 2 months.
Boonsai Sangsurat lost to Mikio Yasuda via TKO in the 2nd round, and adds a loss to his record at 63-6.
On December 1, 2007, a 29-year-old Boonsai Sangsurat (53-4, 39 KOs) and a 28-year-old Mexican boxer Jorge Arce (47-4-1, 36 KOs) met in the ring in a bantamweight bout.
Sangsurat came in to the fight on a 11-fight win streak with a 68% KO rate, and was fighting after a gap of 1 month and 7 days. Arce was on a 1-fight win streak with a 69% KO rate, and fighting after a layoff of 2 months and 15 days.
Jorge Arce stopped Medgoen Singsurat via TKO in the 1st round. Arce improves his record to 48-4-1 (37 KOs), while Sangsurat adds a loss to his record at 53-5.
On January 15, 2006, a 27-year-old Boonsai Sangsurat (42-3, 29 KOs) and Nobuto Ikehara met in the ring.
Sangsurat came in to the fight on a 9-fight win streak with a 64% KO rate, and was fighting after a gap of 5 months and 17 days.
Boonsai Sangsurat lost to Nobuto Ikehara via TKO in the 3rd round, and adds a loss to his record at 42-4.
On January 3, 2004, a 25-year-old Boonsai Sangsurat (33-2, 21 KOs) and Joven Jorda met in the ring.
Sangsurat came in to the fight on a 10-fight win streak with a 60% KO rate, and was fighting after a gap of 2 months and 10 days.
Boonsai Sangsurat lost to Joven Jorda via KO in the 4th round, and adds a loss to his record at 33-3.
On March 2, 2001, a 22-year-old Boonsai Sangsurat (23-1, 14 KOs) and Alfren Bulala met in the ring.
Sangsurat came in to the fight on a 3-fight win streak with a 58% KO rate, and was fighting after a gap of 2 months and 2 days.
Boonsai Sangsurat lost to Alfren Bulala via TKO in the 6th round, and adds a loss to his record at 23-2.
On May 19, 2000, the 21-year-old WBC flyweight world champion, Boonsai Sangsurat (20-0, 12 KOs), faced a 22-year-old Filipino boxer Malcolm Tuñacao (10-0, 6 KOs), in a title defense fight.
Sangsurat came in to the fight on a 20-fight win streak with a 60% KO rate, and was fighting after a gap of 2 months and 24 days. Tuñacao was on a 10-fight win streak with a 60% KO rate, and fighting after a layoff of 3 months and 20 days.
Malcolm Tuñacao stopped the champion via TKO in the 7th round of the 12-round world-title fight, winning the first world title of his career, and is crowned the new WBC flyweight champion. Tuñacao improves his record to 11-0 (7 KOs), while Sangsurat adds a loss to his record at 20-1.