During the 1910 post season, seeking revenge for their loss the year before, Port Adelaide travelled to Western Australia and beat East Fremantle by 12 points. To conclude the trip Port Adelaide played a combination of some of the WAFL's best players and achieved a remarkable victory scoring 6.17 (53) to 6.12 (48), with Sampson Hosking named best on ground. Along with beating the premiers from South Australia, Victoria and Western Australia in 1910, Port Adelaide also invited North Broken Hill, the premier team of New South Wales, to a game at Adelaide Oval. Port Would win this game 14.20 (104) to 5.5 (35). The following two seasons for Port Adelaide would be frustrating dropping only one game during the 1911 minor round and going undefeated the following year in 1912 only to be knocked out of contention by West Adelaide both times, the second of these encounters in front of a pre war South Australian record crowd of 28,500. During the 1912 preseason, Port Adelaide travelled to Tasmania and took on a combination of players from various Tasmanian Football League (TFL) sides. The game would prove to be very competitive with Port Adelaide defeating the TFL combination 7.13 (55) to 6.6 (42). During the 1913 preseason, Port Adelaide travelled back to Western Australia to play East Fremantle again with the local side winning for a second time 6.6 (42) to 4.12 (36). Despite this inauspicious preseason the club would break through in 1913, dropping only two games during the minor round and eventually defeating North Adelaide 7.12 (54) to 5.10 (40) for the SAFL premiership and Fitzroy 13.16 (94) to 4.7 (31) for the 1913 Championship of Australia. The 1914 Port Adelaide Football Club season is widely regarded as one of the best in Australian rules football history. It won all its pre season matches, won all fourteen SAFL games by an average margin of 49 points and the 1914 SAFL Grand Final where it held North Adelaide to a single goal for the match 13.15 (93) to 1.8 (14). The club would then meet VFL premiers Carlton on Adelaide Oval, defeating the Victorian club by 34 points to claim a record fourth Championship of Australia. At the end of the 1914 season, a combined team from the six other SAFL clubs played Port Adelaide and lost to the subsequently dubbed "Invincibles" by 58 points. Key players from this era were Harold Oliver, Angelo Congear and Sampson Hosking who all share the unique distinction of playing in three Championships of Australia together as well all taking part in South Australia's first victorious Australian National Football Carnival in 1911.