▁the ▁W BF ▁Junior ▁fe ather weight ▁World ▁Champion ▁in ▁ 1 9 9 0 s . ▁ ▁Biography ▁and ▁career ▁T ors ak ▁( nick name : ▁Sing ha ; ▁ ส ิ ง ห ์ ) ▁was ▁born ▁at ▁Bang k ok ' s ▁Lat ▁Ph ra o ▁neighborhood , ▁Tamb on ▁Bang ▁K api , ▁Ph aya ▁Th ai ▁District ▁( current ly ▁Bang ▁K api ▁District ). ▁His ▁father , ▁Capt . ▁Ch ana i ▁P ong sup a , ▁own s ▁a ▁box ing ▁and ▁Mu ay ▁Th ai ▁g ym ▁" S as ip rap a " ▁and ▁was ▁manager ▁of ▁Th ailand ' s ▁national ▁amateur ▁box ing ▁team ▁in ▁the ▁ 1 9 8 0 s . ▁He ▁graduated ▁high ▁school ▁from ▁Bang k api ▁School ▁and ▁received ▁a ▁b ach elor ' s ▁degree ▁from ▁Bang k ok ▁University . ▁ ▁He ▁participated ▁in ▁amateur ▁box ing ▁and ▁was ▁quite ▁successful ▁in ▁the ▁youth ▁division . ▁He ▁later ▁qualified ▁for ▁the ▁national ▁team ▁in ▁the ▁ 1 9 8 8 ▁Summer ▁Olympics ▁in ▁Se oul , ▁South ▁Korea . ▁He ▁was ▁defeated ▁by ▁V ich ai ▁Kh ad po ▁( V ich ai ra chan on ▁Kh ad po ) ▁by ▁R SC ▁( because ▁his ▁e y eb rows ▁were ▁broken ▁and ▁couldn ' t ▁continue ▁to ▁fight ). ▁After ▁this ▁he ▁switched ▁to ▁professional ▁box ing . ▁He ▁won ▁seven ▁time , ▁losing ▁only ▁once ▁against ▁fellow - c oun tr yman