The finals system used for the
1910 season was similar in the 1911 season. The top two teams at the end of the year were to play each other in a final to decide the premiership, but in the event of the minor premiers losing, they were deemed to have the "right of challenge" to play a
Grand Final. However, because both
Eastern Suburbs and
South Sydney finished on equal premiership points in second place, a playoff was used to decide who would play minor premiers
Glebe in the final. Eastern Suburbs ended up beating local rivals South Sydney 23-10 at the
Sports Ground in front of 14,000 people on September 2, 1911, to win the play-off in order to play minor premiers Glebe. The following week, Eastern Suburbs beat Glebe in front of 16,000 at the Agricultural Ground 22-9. Glebe immediately exercised their right for a rematch the following week for a match to be held at the
Agricultural Ground on September 16, 1911.
Final After Glebe won the toss, Dally Messenger kicked off at 3:31pm on what was a very windy Saturday afternoon.{{cite news The referee was
Tom McMahon (the elder of the two Sydney top-grade referees of that name) who in the first half sent off Glebe’s Sid Pert and Rooster Larry O'Malley, the former Australian Kangaroo captain. Early in the second half, Cubitt scored again for Glebe to take an 8–4 lead. However, in the final ten minutes, Eastern Suburbs were able to score a try after a high kick was misjudged by the Glebe fullback, and Charlie Lees took the loose ball to score a try. Dally Messenger converted to take the lead 9–8 with only minutes to play, and consolidated the win with another penalty kick to win the game 11–8 for the Roosters and allowing them to take their first premiership in front of 20,000 people. {{cquote In an incident-packed opening stanza McMahon reduced each side to twelve men by sending off O'Malley and Sid Pert after a
touch judge's report. Ensuing scrums were played with only four
forwards. Glebe three-quarter Tom Gleeson left the field with an ankle injury and was replaced at half time by Farrelly. With first use of the stiff southerly, Glebe winger C.R. Cubitt scored out wide in the second minute from a
scrum close to the
Easts line. Messenger replied with a goal shortly after for Glebe to lead 5–2 at halftime. When play resumed, Messenger scored a goal again to narrow the gap to one point. Twelve minutes in, Glebe edged to an 8–4 lead when Cubitt crossed for his second try: a brilliant length of the field effort featuring Farrelly, Redmond, Alby Burge and finally Cubitt who beat Messenger's ankle tap. With thirteen minutes left in the grand final,
Lees scored Easts’ only try, from a high kick. The ball bounced off dazed Glebe
fullback “Bunny” Algie (who had been injured in a headclash in the opening minutes with winger White). Messenger converted and Easts snatched a 9–8 lead. Messenger's
field goal six minutes from the bell gave his team the three point buffer at 11–8 and the confidence to hang on and win their first premiership. After exchanging jerseys, the elated surfsiders carried Messenger from the field".
Eastern Suburbs 11 (Tries: Lees. Goals: Messenger 3. Fld Goal: Messenger ) defeated
Glebe 8 (Tries; C Cubitt 2 Goals: 1.) ==Notable events==