Best Seasons In Oakland Athletics History

What is the best season in Oakland Athletics history?

The best regular season in Oakland Athletics franchise history is 107-45, set by the 1931 Philadelphia Athletics. The 1931 Athletics have both the most wins and the best winning percentage in Oakland Athletics franchise history. The Athletics lost to the St. Louis Cardinals in the World Series.

	Year	Regular Season	Postseason	RD	Result
1	1931	107-45	3-4	+232	Lost WS
2	1929	104-46	4-1	+286	Won WS
3	1910	102-48	4-1	+232	Won WS
4	1911	101-50	4-2	+259	Won WS
5	1930	102-52	4-2	+200	Won WS
6	1914	99-53	0-4	+220	Lost WS
7	1988	104-58	5-4	+180	Lost WS
8	1928	98-55	–	+214	Missed Playoffs
9	1990	103-59	4-4	+163	Lost WS
	2002	103-59	2-3	+146	Lost ALDS
11	2001	102-60	2-3	+239	Lost ALDS
12	1913	96-57	4-1	+202	Won WS
13	1971	101-60	0-3	+127	Lost ALCS
14	1905	92-56	1-4	+135	Lost WS
15	1909	95-58	–	+194	Missed Playoffs
16	1989	99-63	8-1	+136	Won WS
17	1932	94-60	–	+229	Missed Playoffs
18	1902	83-53	–	+139	No Postseason
19	1907	88-57	–	+73	Missed Playoffs
20	1975	98-64	0-3	+152	Lost ALCS
21	1972	93-62	7-5	+147	Won WS
22	2020	36-24	3-4	+42	Lost ALDS
23	2019	97-65	0-1	+165	Lost ALWC
	2018	97-65	0-1	+139	Lost ALWC
25	2013	96-66	2-3	+142	Lost ALDS
	2003	96-66	2-3	+125	Lost ALDS
	1992	96-66	2-4	+73	Lost ALCS
28	1912	90-62	–	+121	Missed Playoffs
29	1927	91-63	–	+115	Missed Playoffs
30	1981	64-45	3-3	+55	Lost ALCS
31	1973	94-68	7-5	+143	Won WS
	2012	94-68	2-3	+99	Lost ALDS
33	1925	88-64	–	+118	Missed Playoffs
34	2006	93-69	3-4	+44	Lost ALCS
35	2000	91-70	2-3	+134	Lost ALDS
36	2004	91-71	–	+51	Missed Playoffs
37	1974	90-72	7-2	+138	Won WS
38	1903	75-60	–	+78	Missed Playoffs
39	1926	83-67	–	+107	Missed Playoffs
40	1970	89-73	–	+85	Missed Playoffs
41	1948	84-70	–	-6	Missed Playoffs
42	1901	74-62	–	+45	No Postseason
43	2014	88-74	0-1	+157	Lost ALWC
	2005	88-74	–	+114	Missed Playoffs
	1969	88-74	–	+62	Missed Playoffs

	Year	Regular Season	Postseason	RD	Result
1	1931	107-45	3-4	+232	Lost WS
2	1929	104-46	4-1	+286	Won WS
	1988	104-58	5-4	+180	Lost WS
4	1990	103-59	4-4	+163	Lost WS
	2002	103-59	2-3	+146	Lost ALDS
6	1910	102-48	4-1	+232	Won WS
	1930	102-52	4-2	+200	Won WS
	2001	102-60	2-3	+239	Lost ALDS
9	1911	101-50	4-2	+259	Won WS
	1971	101-60	0-3	+127	Lost ALCS
11	1914	99-53	0-4	+220	Lost WS
	1989	99-63	8-1	+136	Won WS
13	1928	98-55	–	+214	Missed Playoffs
	1975	98-64	0-3	+152	Lost ALCS
15	2019	97-65	0-1	+165	Lost ALWC
	2018	97-65	0-1	+139	Lost ALWC
17	1913	96-57	4-1	+202	Won WS
	2013	96-66	2-3	+142	Lost ALDS
	2003	96-66	2-3	+125	Lost ALDS
	1992	96-66	2-4	+73	Lost ALCS
21	1909	95-58	–	+194	Missed Playoffs
22	1932	94-60	–	+229	Missed Playoffs
	1973	94-68	7-5	+143	Won WS
	2012	94-68	2-3	+99	Lost ALDS
25	1972	93-62	7-5	+147	Won WS
	2006	93-69	3-4	+44	Lost ALCS
27	1905	92-56	1-4	+135	Lost WS
28	1927	91-63	–	+115	Missed Playoffs
	2000	91-70	2-3	+134	Lost ALDS
	2004	91-71	–	+51	Missed Playoffs
31	1912	90-62	–	+121	Missed Playoffs
	1974	90-72	7-2	+138	Won WS
33	1970	89-73	–	+85	Missed Playoffs
34	1907	88-57	–	+73	Missed Playoffs
	1925	88-64	–	+118	Missed Playoffs
	2014	88-74	0-1	+157	Lost ALWC
	2005	88-74	–	+114	Missed Playoffs
	1969	88-74	–	+62	Missed Playoffs
39	1976	87-74	–	+88	Missed Playoffs
	1999	87-75	–	+47	Missed Playoffs
41	2021	86-76	–	+56	Missed Playoffs
42	1948	84-70	–	-6	Missed Playoffs
	1991	84-78	–	-16	Missed Playoffs
44	1902	83-53	–	+139	No Postseason
	1926	83-67	–	+107	Missed Playoffs
	1980	83-79	–	+44	Missed Playoffs
47	1968	82-80	–	+25	Missed Playoffs
48	1904	81-70	–	+54	No Postseason
	1949	81-73	–	+1	Missed Playoffs
	2010	81-81	–	+37	Missed Playoffs
	1987	81-81	–	+17	Missed Playoffs

What was the best start to a Athletics season?

The best start to a Athletics season was the 1981 Oakland Athletics, who started the season 11-0. The second best starts to a Athletics season was the 1992 Oakland Athletics and the 1905 Philadelphia Athletics, who both started the season at 5-0.

Who was the best Oakland Athletics team that missed the postseason?

Based on win percentage, the best team in Oakland Athletics franchise history that missed the postseason was the 1928 Philadelphia Athletics, who finished the season 98-55 but still didn't qualify for the postseason.