No one..ok Ill go a little out on a limb here and say Kobayashi outpoints him...Ive only seen 3 fights of Kobayashi..one of them where he lost to Duran..As fun as Sor Nanthachai was to watch, it was his flaws that made this so, a bit to easy to hit and counter, which suits a guy like Kobabyashi I imagine.
Kobayashi had a sweet left hook, and though Nanthanchai possesses a pretty solid chin, it isn't completely undentable, as the Mosquera fight proved. Close fight for six, but the Japanese fighter scores a couple of kd's late and secures a hard-fought, but clear UD.