Yamamoto, who lost the OPBF title to Mark John Yap in late 2016, had stopped his last 2 foes in a combined 3 rounds but today he got a proper test from the upset minded Autida.
Yamamoto used his jab to take control early on but Autida was certainly live and looked to land his right hand, having some success.
The success of Autida was most notable in round 5 when a body shot hurt Yamamoto and the Japanese fighter backed off.
Despite being hurt Yamamoto bounced back well, got back behind his jab and rebuilt to secure the victory with scores of 79-73, 79-74 and 79-76.
Whilst the win here certainly helps to re-establish Yamamoto on the regional scene it doesn't do much to help Autida who is now 2-5 in his last 7 and 4-6 in his last 10, including losses to Ryo Matsumoto, Jason Canoy and Ernesto Saulong.
(Image courtesy of boxmob.jp)