Teams with home run leaders less than 10 since 1920.

Starting in 1920 68 teams have had a home run leader with fewer than 10 home runs. Several times multiple teammates tied for the team lead. Two such teams won the pennant:
1920 Brooklyn Dodgers won the World Series hitting 28 regular season home runs
1927 Pittsburgh Pirates hit 54 regular season home runs but were swept by the Yankees.

The 1979 Houston Astros finished second at 89-73 hitting 49 regular season home runs. They are the most recent team with a single digit home run leader in a full season. In 1981 teams played about 101-103 games.

The next post will have the names of the leaders.

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yearID	teamID	HRmax	FranchID	FranchName	Rank	W	L	HRtot	ABtot
1920	BOS	7	BOS	Boston Red Sox	5	72	81	22	5199
1920	BRO	9	LAD	Los Angeles Dodgers	1	93	61	28	5399
1920	BSN	6	ATL	Atlanta Braves	7	62	90	23	5218
1920	CIN	4	CIN	Cincinnati Reds	3	82	71	18	5176
1920	PIT	4	PIT	Pittsburgh Pirates	4	79	75	16	5219
1920	WS1	9	MIN	Minnesota Twins	6	68	84	36	5251
1921	BOS	5	BOS	Boston Red Sox	5	75	79	17	5206
1921	CHN	6	CHC	Chicago Cubs	7	64	89	37	5321
1921	CIN	4	CIN	Cincinnati Reds	6	70	83	20	5112
1921	PIT	7	PIT	Pittsburgh Pirates	2	90	63	37	5379
1921	WS1	9	MIN	Minnesota Twins	4	80	73	42	5294
1922	BSN	6	ATL	Atlanta Braves	8	53	100	32	5161
1923	BSN	7	ATL	Atlanta Braves	7	54	100	32	5329
1923	WS1	9	MIN	Minnesota Twins	4	75	78	26	5244
1924	BSN	6	ATL	Atlanta Braves	8	53	100	25	5283
1924	CIN	4	CIN	Cincinnati Reds	4	83	70	36	5301
1924	CLE	9	CLE	Cleveland Indians	6	67	86	41	5332
1924	PIT	9	PIT	Pittsburgh Pirates	3	90	63	44	5288
1925	BSN	7	ATL	Atlanta Braves	5	70	83	41	5365
1925	CHA	9	CHW	Chicago White Sox	5	79	75	38	5224
1925	CIN	8	CIN	Cincinnati Reds	3	80	73	44	5233
1926	BOS	7	BOS	Boston Red Sox	8	46	107	32	5185
1926	BSN	3	ATL	Atlanta Braves	7	66	86	16	5216
1926	CHA	8	CHW	Chicago White Sox	5	81	72	32	5220
1926	CIN	7	CIN	Cincinnati Reds	2	87	67	35	5320
1926	CLE	7	CLE	Cleveland Indians	2	88	66	27	5293
1926	PIT	8	PIT	Pittsburgh Pirates	3	84	69	44	5312
1927	BOS	6	BOS	Boston Red Sox	8	51	103	28	5207
1927	CHA	9	CHW	Chicago White Sox	5	70	83	36	5157
1927	CIN	6	CIN	Cincinnati Reds	5	75	78	29	5185
1927	CLE	5	CLE	Cleveland Indians	6	66	87	26	5202
1927	PIT	9	PIT	Pittsburgh Pirates	1	94	60	54	5397
1928	CHA	3	CHW	Chicago White Sox	5	72	82	24	5207
1928	CIN	7	CIN	Cincinnati Reds	5	78	74	32	5184
1928	CLE	5	CLE	Cleveland Indians	7	62	92	34	5386
1929	BOS	6	BOS	Boston Red Sox	8	58	96	28	5160
1929	CIN	7	CIN	Cincinnati Reds	7	66	88	34	5269
1929	SLA	9	BAL	Baltimore Orioles	4	79	73	46	5174
1931	CHA	6	CHW	Chicago White Sox	8	56	97	27	5481
1931	CIN	8	CIN	Cincinnati Reds	8	58	96	21	5343
1932	CHA	9	CHW	Chicago White Sox	7	49	102	36	5336
1932	PIT	8	PIT	Pittsburgh Pirates	2	86	68	48	5421
1933	BRO	9	LAD	Los Angeles Dodgers	6	65	88	62	5367
1935	WS1	6	MIN	Minnesota Twins	6	67	86	32	5592
1936	BRO	5	LAD	Los Angeles Dodgers	7	67	87	33	5574
1937	BRO	8	LAD	Los Angeles Dodgers	6	62	91	37	5295
1937	PIT	9	PIT	Pittsburgh Pirates	3	86	68	47	5433
1938	PHI	8	PHI	Philadelphia Phillies	8	45	105	40	5192
1939	PHI	9	PHI	Philadelphia Phillies	8	45	106	49	5133
1942	CHA	7	CHW	Chicago White Sox	6	66	82	25	4949
1942	PHI	9	PHI	Philadelphia Phillies	8	42	109	44	5060
1942	WS1	9	MIN	Minnesota Twins	7	62	89	40	5295
1943	BRO	9	LAD	Los Angeles Dodgers	3	81	72	39	5309
1943	CHA	5	CHW	Chicago White Sox	4	82	72	33	5254
1943	CIN	9	CIN	Cincinnati Reds	2	87	67	43	5329
1945	CHA	4	CHW	Chicago White Sox	6	71	78	22	5077
1945	PHA	8	OAK	Oakland Athletics	8	52	98	33	5296
1945	WS1	8	MIN	Minnesota Twins	2	87	67	27	5326
1946	BSN	8	ATL	Atlanta Braves	4	81	72	44	5225
1946	CHA	7	CHW	Chicago White Sox	5	74	80	37	5312
1946	CHN	8	CHC	Chicago Cubs	3	82	71	56	5298
1948	WS1	7	MIN	Minnesota Twins	7	56	97	31	5111
1949	CHA	7	CHW	Chicago White Sox	6	63	91	43	5204
1954	BAL	8	BAL	Baltimore Orioles	7	54	100	52	5206
1979	HOU	9	HOU	Houston Astros	2	89	73	49	5394
1981	CLE	7	CLE	Cleveland Indians	6	52	51	39	3507
1981	MIN	7	MIN	Minnesota Twins	7	41	68	47	3676
1981	SDN	8	SDP	San Diego Padres	6	41	69	32	3757