Dolphin was a fullback from Yarrawonga, who captained South Melbourne in 1907 in 1908.[2] He captained his club in the 1907 VFL Grand Final, which they lost narrowly to Carlton. An injury cost him a place in South Melbourne's 1909 premiership team, after playing in their preliminary final win the previous week.[1] In 1911 he became just the fifth South Melbourne player to reach 100 VFL games.[3]