LONDON, Aug 4 (Reuters) - Kazakhstan's Adilbek Niyazymbetov beat Ecuador's Carlos Gongora 13-5 in an Olympic men's boxing light heavyweight last 16 match on Sunday.   Results Table    Adilbek Niyazymbetov (Kazakhstan) beat Carlos Gongora (Ecuador) 13-5   Egor Mekhontsev (Russia) beat Damian Hooper (Australia) 19-11          Elshod Rasulov (Uzbekistan) beat Yahia Elmekacheri (Tunisia) 13-6      Yamaguchi Falcao (Brazil) beat Fanlong Meng (China) 17-17              Julio Cesar de la Cruz (Cuba) beat Ihab Al Matbouli (Jordan) 25-8       Keywords: OLY BOXI BXM81K/