This Day in Boxing Alfonso Zamora KOs Thanomchit Sukhothai This Day August 30, 1975 Retains Crown SteveAugust 29, 2018, 4:05 pmAugust 29, 2018 529 Facebook Twitter Alfonso Zamora KOs Thanomchit Sukhothai This Day August 30, 1975 Retains Crown Alfonso Zamora 117¾ Thanomchit Sukhothai 117½ Convention Center, Anaheim TKO 4 time: 2:11 referee: Dick Young WBA World Bantamweight Title Previous ArticleJames Toney Beats Mike McCallum This Day August 29, 1992 Retains CrownNext ArticleJimmy Slattery Beats Maxie Rosenbloom This Day August 30, 1927 – Light Heavy Title