NORTHERN IRELAND  1920-21
	Irish League
		Played	Won	Drew	Lost	For	Against	G/Av	Points
1	Glentoran FC Belfast	8	7	0	1	20	6	3,333	14
2	Glenavon FC Lurgan	8	5	2	1	14	8	1,750	12
3	Linfield FC Belfast	8	3	3	2	8	6	1,333	9
4	Cliftonville FC Belfast	8	1	1	6	5	15	0,333	3
5	Distillery FC Belfast	8	1	0	7	7	19	0,368	2
		40	17	6	17	54	54		40
	Rules for classification: 1) Points  (win 2 points, draw 1 point); 2) Goal average (play-off for relevant positions)
	Admitted	Queen's Island FC Belfast
	Belfast = Béal Feirste				Lurgan = an Lorgain
	English = Irish
	CUP
	Semifinals	Glenavon FC Lurgan - Shelbourne FC Dublin					0-0	+w/o
		Glentoran FC Belfast - Brantwood FC Belfast					4-3
	Final (26.03.1921)	Glentoran FC Belfast - Glenavon FC Lurgan					2-0
	NORTHERN IRELAND 1921-22
	Irish League
		Played	Won	Drew	Lost	For	Against	G/Av	Points
1	Linfield FC Belfast	10	7	3	0	18	6	3,000	17
2	Glentoran FC Belfast	10	5	3	2	14	7	2,000	13
3	Distillery FC Belfast	10	5	1	4	18	17	1,059	11
4	Glenavon FC Lurgan	10	3	2	5	11	14	0,786	8
5	Queen's Island FC Belfast	10	3	2	5	9	16	0,563	8
6	Cliftonville FC Belfast	10	1	1	8	3	13	0,231	3
		60	24	12	24	73	73		60
	Rules for classification: 1) Points  (win 2 points, draw 1 point); 2) Goal average (play-off for relevant positions)
	Belfast = Béal Feirste				Lurgan = an Lorgain
	English = Irish
	CUP
	Semifinals	Glenavon FC Lurgan - Linfield Rangers FC Belfast					2-1
		Queen's Island FC Belfast - Linfield FC Belfast					0-1
	Final (25.03.1922)	Linfield FC Belfast - Glenavon FC Lurgan					2-0
	Queen's Island FC Belfast dissolved in ???				Linfield Rangers FC Belfast dissolved in ???
	NORTHERN IRELAND 1922-23
	Irish League
		Played	Won	Drew	Lost	For	Against	G/Av	Points
1	Linfield FC Belfast	10	7	2	1	20	5	4,000	16
2	Queen's Island FC Belfast	10	5	2	3	17	21	0,810	12
3	Glentoran FC Belfast	10	4	3	3	14	9	1,556	11
4	Distillery FC Belfast	10	4	2	4	12	13	0,923	10
5	Cliftonville FC Belfast	10	2	2	6	11	19	0,579	6
6	Glenavon FC Lurgan	10	2	1	7	12	19	0,632	5
		60	24	12	24	86	86		60
	Rules for classification: 1) Points  (win 2 points, draw 1 point); 2) Goal average (play-off for relevant positions)
	Admitted	Barn FC Carrickfergus, Ards FC Newtownards, Newry Town FC, Larne FC
	Belfast = Béal Feirste				Lurgan = an Lorgain
	English = Irish
	CUP
	Semifinals	Glentoran FC Belfast - Glenavon FC Lurgan					2-1
		Linfield FC Belfast - Distillery FC Belfast					1-0
	Final (21.03.1923)	Linfield FC Belfast - Glentoran FC Belfast					2-0
	Queen's Island FC Belfast dissolved in ???
	NORTHERN IRELAND 1923-24
	Irish League
		Played	Won	Drew	Lost	For	Against	G/Av	Points
1	Queen's Island FC Belfast (-2)	18	12	4	2	48	18	2,667	26
2	Distillery FC Belfast	18	7	6	5	32	30	1,067	20
3	Linfield FC Belfast	18	8	4	6	31	27	1,148	20
4	Glenavon FC Lurgan	18	5	10	3	27	30	0,900	20
5	Glentoran FC Belfast	18	9	1	8	32	23	1,391	19
6	Cliftonville FC Belfast	18	6	6	6	24	24	1,000	18
7	Barn FC Carrickfergus	18	6	4	8	23	29	0,793	16
8	Larne FC	18	6	4	8	33	43	0,767	16
9	Ards FC Newtownards	18	5	4	9	18	30	0,600	14
10	Newry Town FC	18	2	5	11	25	39	0,641	9
		180	66	48	66	293	293		178
	Rules for classification: 1) Points  (win 2 points, draw 1 point); 2) Goal average (play-off for relevant positions)
	Queen's Island FC Belfast 2 points deducted by Federation decision
	Admitted	Belfast Celtic FC, Portadown FC
	2nd place play-off series	Distillery FC Belfast - Linfield FC Belfast					2-2
		Glenavon FC Lurgan - Distillery FC Belfast					1-3
		Linfield FC Belfast - Glenavon FC Lurgan					4-0
		Distillery FC Belfast - Linfield FC Belfast					2-1
	Belfast = Béal Feirste				Larne = Latharna
	Lurgan = an Lorgain				Newtownards = Baile Nua na hArda
	Carrickfurgus = Carraig Fhearghais				Newry = úr Cinn Trá
	English = Irish
	CUP
	Semifinals	Queen's Island FC Belfast - Crusaders FC Belfast					1-1	1-0
		Willowfield FC Belfst - Larne FC					1-0
	Final (29.03.1924)	Queen's Island FC Belfast - Willowfield FC Belfst					1-0
	Queen's Island FC Belfast dissolved in ???				Barn FC Carrickfergus dissolved in 1928
	Willowfield FC Belfst dissolved in 1930
	NORTHERN IRELAND 1924-25
	Irish League
		Played	Won	Drew	Lost	For	Against	G/Av	Points
1	Glentoran FC Belfast	22	17	3	2	53	18	2,944	37
2	Queen's Island FC Belfast	22	13	6	3	48	23	2,087	32
3	Belfast Celtic FC	22	11	5	6	36	31	1,161	27
4	Portadown FC	22	10	5	7	42	35	1,200	25
5	Glenavon FC Lurgan	22	11	2	9	45	36	1,250	24
6	Linfield FC Belfast	22	10	2	10	34	31	1,097	22
7	Ards FC Newtownards	22	7	4	11	39	41	0,951	18
8	Larne FC	22	7	4	11	30	47	0,638	18
9	Distillery FC Belfast	22	6	4	12	31	40	0,775	16
10	Barn FC Carrickfergus	22	6	4	12	29	40	0,725	16
11	Cliftonville FC Belfast	22	6	4	12	21	32	0,656	16
12	Newry Town FC	22	5	3	14	34	68	0,500	13
		264	109	46	109	442	442		264
	Rules for classification: 1) Points  (win 2 points, draw 1 point); 2) Goal average (play-off for relevant positions)
	Belfast = Béal Feirste				Larne = Latharna
	Portadown = Port an Dúnáin				Carrickfurgus = Carraig Fhearghais
	Lurgan = an Lorgain				Newry = úr Cinn Trá
	Newtownards = Baile Nua na hArda
	English = Irish
	CUP
	Semifinals	Distillery FC Belfast - Glenavon FC Lurgan					2-0
		Glentoran FC Belfast - Crusaders FC Belfast					2-0
	Final (21.03.1925)	Distillery FC Belfast - Glentoran FC Belfast					2-1
	Queen's Island FC Belfast dissolved in ???				Belfast Celtic FC dissolved in 1960
	Barn FC Carrickfergus dissolved in 1928
	NORTHERN IRELAND 1925-26
	Irish League
		Played	Won	Drew	Lost	For	Against	G/Av	Points
1	Belfast Celtic FC	22	16	1	5	52	38	1,368	33
2	Glentoran FC Belfast	22	13	4	5	53	31	1,710	30
3	Larne FC	22	11	5	6	45	33	1,364	27
4	Ards FC Newtownards	22	11	4	7	56	42	1,333	26
5	Distillery FC Belfast	22	10	5	7	37	35	1,057	25
6	Queen's Island FC Belfast	22	9	5	8	42	37	1,135	23
7	Glenavon FC Lurgan	22	10	3	9	36	37	0,973	23
8	Portadown FC	22	7	7	8	43	41	1,049	21
9	Linfield FC Belfast	22	8	5	9	47	46	1,022	21
10	Newry Town FC	22	5	5	12	33	53	0,623	15
11	Cliftonville FC Belfast	22	4	6	12	29	39	0,744	14
12	Barn FC Carrickfergus	22	2	2	18	25	66	0,379	6
		264	106	52	106	498	498		264
	Rules for classification: 1) Points  (win 2 points, draw 1 point); 2) Goal average (play-off for relevant positions)
	Belfast = Béal Feirste				Portadown = Port an Dúnáin
	Larne = Latharna				Newry = úr Cinn Trá
	Newtownards = Baile Nua na hArda				Carrickfurgus = Carraig Fhearghais
	Lurgan = an Lorgain
	English = Irish
	CUP
	Semifinals	Belfast Celtic FC - Nerwy Town FC					3-0
		Linfield FC Belfast - Glentoran FC Belfast					2-2	2-2	3-2
	Final (27.03.1926)	Belfast Celtic FC - Linfield FC Belfast					3-2
	Belfast Celtic FC dissolved in 1960				Queen's Island FC Belfast dissolved in ???
	Barn FC Carrickfergus
	NORTHERN IRELAND 1926-27
	Irish League
		Played	Won	Drew	Lost	For	Against	G/Av	Points
1	Belfast Celtic FC	22	15	7	0	66	26	2,538	37
2	Queen's Island FC Belfast	22	12	6	4	46	34	1,353	30
3	Distillery FC Belfast	22	12	5	5	56	36	1,556	29
4	Glentoran FC Belfast	22	11	5	6	56	48	1,167	27
5	Ards FC Newtownards	22	9	7	6	42	42	1,000	25
6	Larne FC	22	10	4	8	55	50	1,100	24
7	Linfield FC Belfast	22	8	6	8	41	35	1,171	22
8	Portadown FC	22	7	4	11	50	48	1,042	18
9	Newry Town FC	22	6	5	11	39	48	0,813	17
10	Cliftonville FC Belfast	22	7	3	12	32	40	0,800	17
11	Glenavon FC Lurgan	22	4	3	15	33	57	0,579	11
12	Barn FC Carrickfergus	22	2	3	17	35	87	0,402	7
		264	103	58	103	551	551		264
	Rules for classification: 1) Points  (win 2 points, draw 1 point); 2) Goal average (play-off for relevant positions)
	Admitted	Coleraine FC, Bangor FC
	Belfast = Béal Feirste				Newry = úr Cinn Trá
	Newtownards = Baile Nua na hArda				Lurgan = an Lorgain
	Larne = Latharna				Carrickfurgus = Carraig Fhearghais
	Portadown = Port an Dúnáin
	English = Irish
	CUP
	Semifinals	Belfast Celtic FC - Ards FC Newtownards					1-3
		Crusaders FC Belfast - Cliftonville FC Belfast					2-4
	Final (26.03.1927)	Ards FC Newtownards - Cliftonville FC Belfast					3-2
	Belfast Celtic FC dissolved in 1960				Queen's Island FC Belfast dissolved in ???
	Barn FC Carrickfergus
	NORTHERN IRELAND 1927-28
	Irish League
		Played	Won	Drew	Lost	For	Against	G/Av	Points
1	Belfast Celtic FC	26	20	5	1	101	35	2,886	45
2	Linfield FC Belfast	26	18	5	3	88	34	2,588	41
3	Newry Town FC	26	13	7	6	55	30	1,833	33
4	Larne FC	26	13	4	9	63	55	1,145	30
5	Glentoran FC Belfast	26	12	5	9	63	65	0,969	29
6	Distillery FC Belfast	26	11	5	10	57	60	0,950	27
7	Glenavon FC Lurgan	26	9	7	10	45	44	1,023	25
8	Portadown FC	26	10	3	13	61	58	1,052	23
9	Coleraine FC	26	9	5	12	63	69	0,913	23
10	Bangor FC	26	9	5	12	57	69	0,826	23
11	Ards FC Newtownards	26	8	5	13	54	69	0,783	21
12	Queen's Island FC Belfast	26	5	7	14	46	69	0,667	17
13	Barn FC Carrickfergus	26	5	4	17	38	91	0,418	14
14	Cliftonville FC Belfast	26	5	3	18	29	72	0,403	13
		364	147	70	147	820	820		364
	Rules for classification: 1) Points  (win 2 points, draw 1 point); 2) Goal average (play-off for relevant positions)
	Barn FC Carrickfergus not re-elected
	Admitted	Ballymena FC
	Belfast = Béal Feirste				Bangor = Beannchar
	Newry = úr Cinn Trá				Portadown = Port an Dúnáin
	Larne = Latharna				Newtownards = Baile Nua na hArda
	Lurgan = an Lorgain				Carrickfurgus = Carraig Fhearghais
	Coleraine = Cúil Raithin
	English = Irish
	CUP
	Semifinals	Larne FC - Portadown FC					2-1
		Willowfield FC Belfast - Belfast Celtic FC					1-1	2-1
	Final (25.04.1928)	Willowfield FC Belfast - Larne FC					1-0
	Belfast Celtic FC dissolved in 1960				Queen's Island FC Belfast dissolved in ???
	Barn FC Carrickfergus				Willowfield FC Belfst dissolved in 1930
	NORTHERN IRELAND 1928-29
	Irish League
		Played	Won	Drew	Lost	For	Against	G/Av	Points
1	Belfast Celtic FC	26	22	4	0	116	23	5,043	48
2	Linfield FC Belfast	26	19	1	6	88	44	2,000	39
3	Glentoran FC Belfast	26	15	3	8	82	62	1,323	33
4	Distillery FC Belfast	26	15	2	9	71	58	1,224	32
5	Coleraine FC	26	13	4	9	63	53	1,189	30
6	Ballymena FC	26	10	8	8	64	54	1,185	28
7	Bangor FC	26	10	6	10	49	54	0,907	26
8	Glenavon FC Lurgan	26	8	8	10	61	63	0,968	24
9	Ards FC Newtownards	26	9	5	12	55	64	0,859	23
10	Newry Town FC	26	9	4	13	47	58	0,810	22
11	Portadown FC	26	10	2	14	52	76	0,684	22
12	Larne FC	26	8	4	14	51	72	0,708	20
13	Cliftonville FC Belfast	26	3	4	19	32	73	0,438	10
14	Queen's Island FC Belfast	26	2	3	21	53	130	0,408	7
		364	153	58	153	884	884		364
	Rules for classification: 1) Points  (win 2 points, draw 1 point); 2) Goal average (play-off for relevant positions)
	Queen's Island FC Belfast not re-elected
	Admitted	Derry City FC Londonderry
	Belfast = Béal Feirste				Newtownards = Baile Nua na hArda
	Coleraine = Cúil Raithin				Newry = úr Cinn Trá
	Ballymena = Baile Lifin				Portadown = Port an Dúnáin
	Bangor = Beannchar				Larne = Latharna
	Lurgan = an Lorgain
	English = Irish
	CUP
	Semifinals	Belfast Celtic FC - Linfield FC Belfast					3-0
		Ballymena FC - Coleraine FC					3-0
	Final (30.05.1929)	Ballymena FC - Belfast Celtic FC					2-1
	Belfast Celtic FC dissolved in 1960				Queen's Island FC Belfast dissolved in ???
	NORTHERN IRELAND 1929-30
	Irish League
		Played	Won	Drew	Lost	For	Against	G/Av	Points
1	Linfield FC Belfast	26	19	4	3	94	46	2,043	42
2	Glentoran FC Belfast	26	16	4	6	79	53	1,491	36
3	Coleraine FC	26	14	4	8	66	47	1,404	32
4	Belfast Celtic FC	26	13	4	9	68	57	1,193	30
5	Ballymena FC	26	13	3	10	65	46	1,413	29
6	Bangor FC	26	12	5	9	61	58	1,052	29
7	Derry City FC Londonderry	26	12	5	9	52	55	0,945	29
8	Glenavon FC Lurgan	26	12	3	11	70	63	1,111	27
9	Distillery FC Belfast	26	12	3	11	65	61	1,066	27
10	Portadown FC	26	7	7	12	68	90	0,756	21
11	Newry Town FC	26	9	1	16	51	66	0,773	19
12	Ards FC Newtownards	26	6	6	14	47	77	0,610	18
13	Larne FC	26	5	3	18	47	77	0,610	13
14	Cliftonville FC Belfast	26	5	2	19	40	77	0,519	12
		364	155	54	155	873	873		364
	Rules for classification: 1) Points  (win 2 points, draw 1 point); 2) Goal average (play-off for relevant positions)
	Belfast = Béal Feirste				Lurgan = an Lorgain
	Coleraine = Cúil Raithin				Portadown = Port an Dúnáin
	Bangor = Beannchar				Newry = úr Cinn Trá
	Ballymena = Baile Lifin				Newtownards = Baile Nua na hArda
	Londonderry = Doire				Larne = Latharna
	English = Irish
	CUP
	Semifinals	Ballymena FC - Newry Town FC					3-2
		Linfield FC Belfast - Glentoran FC Belfast					2-1
	Final (29.03.1930)	Linfield FC Belfast - Ballymena FC					4-3
	Belfast Celtic FC dissolved in 1960