Born July 17th 1985, orthodox fighter Oleydong Sithsamerchai started his career in September 2002 at the age of 17 and has now been pro for 11 years, fighting a total of 57 times. The longest KO streak that Sithsamerchai has ever had is 4 throughout his 57 fights and his longest winning streak is 34 wins. This started on September 2002 and came to an end on March 2010.
A calm Sithsamerchai made the statement he was hoping for in a 6 round fight against Salatan Lookbanyai. Claiming the only stoppage defeat of Lookbanyai's career in round 1 of the fight via KO. Following his debut, Sithsamerchai had an impressive start to his career as he went on to win his next 29 fights including 3 times in 2002, 5 times in 2003 and 21 times between 2004 and 2008 against the likes of Tommy Terado, Pornsawan Porpramook and Eagle den Junlaphan.
Sithsamerchai then went on to fight and beat Rey Orais on March 14th, 2003 maintaining his unbeaten record. Orais was stopped in the 6th round via TKO crowning Sithsamerchai as the first person to stop this opponent. Fights against Edmund Velayo, Carlo Besares, Isidro Lorona and 9 others followed where he won all 12 fights taking his winning streak to 17 wins.
Lito Sisnorio was up next for Sithsamerchai on October 28th, 2005. Sithsamerchai continued with his winning streak by beating Sisnorio. Sithsamerchai's fight against Lito Sisnorio came in the 6th round of a 10 round fight via KO. Sithsamerchai became the first person to stop Sisnorio. Fights against Omar Soto, Tommy Terado, Eagle den Junlaphan and 5 others followed where he won all 8 fights taking his winning streak to 26 wins.
Next was Junichi Ebisuoka on June 18th, 2008 where Sithsamerchai took the win continuing his unbeaten streak. The 12 round fight ended in the 9th round via KO crowning Sithsamerchai as only the 2nd to stop Ebisuoka. Fights against boxers including Muhammad Rachman, Juan Palacios and Pornsawan Porpramook followed where he won 9 fights taking his winning streak to 35 wins.
Sithsamerchai went into his next fight against Kazuto Ioka on February 11th, 2011 with a career record of 35-1-1. Sithsamerchai's fight against Kazuto Ioka was Sithsamerchai's first stoppage defeat of his career. This came via TKO in the 5th round of a 12 round fight. Sithsamerchai then went on to win a further 18 fights taking his record to 53 wins, 1 losses and 1 draws.
Noli Morales was Sithsamerchai's next fight on May 30th, 2014 and also the next win in his career via KO. This took his record to 54-1-1 showing a mainly successful career to date. Becoming the 2nd fighter to stop Morales in his career, Sithsamerchai beat Morales via KO in the 4th round of a 12 round fight.
Oleydong Sithsamerchai went into his fight with Falazona Fidal on August 29th, 2014 with 54 wins and he added another win to his record taking it to 55 wins by beating Fidal. Taking his total win streak to 55 wins, Sithsamerchai defeated Fidal in the 6 round fight. The win came via KO in the 4th round. Sithsamerchai was the 13th to stop Fidal.