The 1915 season, and 7th of Auckland Rugby League saw the First Grade competition begin on 8 May featuring the same 6 senior clubs who had competed in 1914.
The First World War was in full effect by the time the 1915 season began. War had been declared just as the 1914 rugby league season was concluding in August 1914. As a result, several efforts were made during the 1915 season by the Auckland Rugby League to raise funds for Auckland Hospital Ship and Wounded Soldiers Relief Fund.
On 12 June, a seven-a-side tournament was arranged to be played at Victoria Park to raise money for the Auckland Hospital Ship and Wounded Relief Fund.[1] In total £200 was raised with "almost 1,000 people" in attendance. All senior clubs entered teams and the final was played between North Shore Albions and City Rovers though the match was not completed owing to the fact that some earlier matches went to extra-time and the final saw an injury requiring a stoppage. As it had become dark it was decided to call the game off with North Shore leading by 3pts.[2] A further £35 was raised from the 19 June round of matches at Victoria Park for the same cause.
Grafton Athletic were crowned First Grade champions for the first time after defeating City Rovers 10–5 in the championship final at Victoria Park in front of 4,000 spectators.