Teams

• Balmain, formed on January 23, 1908, at Balmain Town Hall
• Eastern Suburbs, formed on January 24, 1908, at Paddington Town Hall
• Newtown, formed on January 14, 1908
• North Sydney, formed on February 7, 1908
• South Sydney, formed on January 17, 1908, at Redfern Town Hall
• St. George, formed on November 8, 1920, at Kogarah School of Arts
• Western Suburbs, formed on February 4, 1908
• University, formed in 1919 at Sydney University

Balmain 24th season Ground: Birchgrove Oval Coach: Reg Latta Captain: Arthur Toby	Eastern Suburbs 24th season Ground: Sydney Sports Ground Coach: Arthur Halloway Captain: Norm Pope	Newtown 24th season Ground: Marrickville Oval Captain: Jack Holmes	North Sydney 24th season Ground: North Sydney Oval Captain-Coach: Tom Wright
St. George 11th season Ground: Earl Park Captain-coach: Harry Kadwell	South Sydney 24th season Ground: Sydney Sports Ground Coach: Charlie Lynch Captain: Pat Maher	University 12th season Captain: Sammy Ogg	Western Suburbs 24th season Ground:Pratten Park Coach: Frank McMillan Captain: Bill Brogan

Ladder

The geographical locations of the teams that contested the 1931 premiership across Sydney.

	Team	Pld	W	D	L	PF	PA	PD	Pts
1	Eastern Suburbs	14	12	0	2	339	121	+218	24
2	South Sydney	14	9	0	5	250	176	+74	18
3	Western Suburbs	14	9	0	5	220	227	-7	18
4	St. George	14	8	0	6	178	183	-5	16
5	North Sydney	14	6	0	8	143	198	-55	12
6	Newtown	14	5	0	9	205	194	+11	10
7	Balmain	14	5	0	9	133	205	-72	10
8	Sydney University	14	2	0	12	135	299	-164	4

Chart

	Semi-finals					Final					Grand final
	1	Easts	8
											MP	Easts	7
	3	Wests	10
						Wests		3				Souths	12
						Souths		17
	2	Souths	16
	4	St George	5

Grand Final

Eastern Suburbs started the match as short-priced favourites, and ran with the breeze from the western end after their captain Pope won the toss. With hooker Dick Brown dominating the scrums, Eastern Suburbs attacked early. The first points came at the twenty-minute mark when Lynch kicked a goal after O’Connor was penalised in front of the posts. He missed another attempt two minutes later but Easts went further ahead when Lynch kicked another goal, from a drop kick. Benny Wearing had his chance for South Sydney but was pulled down from behind by Dave Brown two yards from the line. At halftime Eastern Suburbs led 4–0.

Five-minutes after the break South Sydney seized control of the match. They attacked desperately as Treweeke, Curran and then Root hurled themselves at the Eastern Suburbs line. A scrum followed and with an overlap out wide Wearing crossed unopposed in the corner. The winger then converted his own try to give South Sydney a 5–4 lead. Eastern Suburbs then hit back with a remarkable try. Billy Hong gathered in his own twenty-five yard area, stepped through the defence to halfway, passed to Tottey who beat Morrison in a race for the ball. Dave Brown missed the goal, Eastern Suburbs led 7–5. South Sydney fullback Spillane then landed a goal from two yards on his own side of halfway to level the score at 7–all.

Hong then went off after twisting an ankle, Eastern Suburbs struggled to contend with the extra man in South Sydney's backline. Chances followed for both sides – South Sydney's winger, Why, was thrown out at the corner post, Morrison lost possession close to the line and Brown missed with a penalty.

With only minutes left and scores locked at 7–all, South Sydney five-eighth Harry Eyres seized possession inside Eastern Suburbs quarter, stood still for a split second, then with an electrifying burst of speed exploded through the converging defence. He beat the ineffective tackle of Hong (who had come back onto the field) and with the referee accidentally getting in the way of Brown coming over in cover defence for Eastern Suburbs, Eyres crossed for the match winning try. Hong then collapsed and had to be carried from the field as Williams was converting the try.^[3]

It was widely claimed as one of the most thrilling Grand Finals in the short history of the game in Sydney.

South Sydney 12
Tries: Wearing, Eyres. Goals: Wearing, Williams, Spillane

Eastern Suburbs 7
Tries: Tottey. Goals: Lynch (2)

• 
  Ernie Norman
• 
  Ray Stehr
• 
  Dave Brown