Closest MLB Rivalries of All Time

Long series where neither side has pulled away: the closest to a 50-50 record. Each team appears once. Closest of all: Chicago Cubs and Chicago White Sox, 82-82 after 164 meetings.

Team

#	Series	Record	Win %	Games
1	Chicago Cubs vs Chicago White Sox164 games	82-82	50.0%	164
2	Atlanta Braves vs Baltimore Orioles60 games	30-30	50.0%	60
3	Cincinnati Reds vs Detroit Tigers54 games	27-27	50.0%	54
4	St. Louis Cardinals vs Minnesota Twins52 games	26-26	50.0%	52
5	San Francisco Giants vs Seattle Mariners52 games	26-26	50.0%	52
6	New York Yankees vs Miami Marlins52 games	26-26	50.0%	52
7	San Diego Padres vs New York Mets536 games	270-266	50.4%	536
8	Los Angeles Angels vs Kansas City Royals629 games	317-312	50.4%	629
9	Houston Astros vs Boston Red Sox109 games	55-54	50.5%	109
10	Milwaukee Brewers vs Colorado Rockies196 games	99-97	50.5%	196
11	Athletics vs Texas Rangers1030 games	522-508	50.7%	1030
12	Cleveland Guardians vs Toronto Blue Jays470 games	238-230-2	50.9%	470
13	Cleveland Blues vs Detroit Wolverines55 games	27-26-2	50.9%	55
14	Philadelphia Phillies vs Tampa Bay Rays51 games	26-25	51.0%	51
15	Brooklyn Superbas vs Baltimore Orioles (1882 to 1899)211 games	105-100-6	51.2%	211
16	Pittsburgh Pirates vs Cleveland Spiders162 games	81-77-4	51.2%	162
17	Louisville Colonels vs Washington Senators123 games	65-57-1	53.3%	123
18	Philadelphia Athletics (1882 to 1891) vs Columbus Solons59 games	32-27	54.2%	59
19	Washington Nationals vs Arizona Diamondbacks188 games	104-84	55.3%	188
20	Indianapolis Hoosiers (1884 to 1889) vs Washington Nationals (1886 to 1889)75 games	43-30-2	58.7%	75
21	Providence Grays vs Buffalo Bisons (1879 to 1885)94 games	57-37	60.6%	94

How this list works

Series with at least 50 meetings (40 in college football), ranked by how close the record is to .500 (a tie counts as half a win). Each team appears in only one row, its closest series.

Each row links to the full matchup page, opened on the MLB numbers. Think you know who leads a series? Try the MLB rivalry quiz.

More MLB records

Sources

Records are computed from every final game result in the Matchup Index database. About the data.