MLB Wins Above Replacement - All Time

Season:
Players By Season | All-Time Players

All-Time Season WAR Leaders
RK	PLAYER	YEAR	WAR	OFF	DEF	WAA	TRPG	ORPG	RAA	WAAWP
1	Tim Keefe	1883	19.7	0	0	16.7	5.6	3.2	164.9	0.7
2	Pud Galvin	1884	20.5	0	0	16	5.2	3.1	140.6	0.7
3	Charles Radbourn	1884	19.1	0	0	14.3	5.2	3.4	125	0.7
4	Jim Devlin	1876	18	0	0	13.4	5.7	3.7	149.1	0.7
5	Guy Hecker	1884	15.5	0	0	12.4	5.2	3.6	97.3	0.7
6	Silver King	1888	14.5	0	0	11.8	5.3	3.5	118.2	0.7
7	Babe Ruth	1923	14	12.2	1.2	11.5	5.5	4.8	121.2	0.6
	Walter Johnson	1913	14.6	0	0	11.5	3.9	2.1	85.1	0.7
	John Clarkson	1889	16.7	0	0	11.5	5.9	4.2	116.3	0.7
10	Silver King	1890	13.8	0	0	11.2	7	4.6	133.6	0.7
11	Ed Morris	1885	13.6	0	0	10.9	5.4	3.7	103.9	0.7
12	John Clarkson	1887	14.9	0	0	10.8	6.1	4.2	97.5	0.7
	Charlie Buffinton	1884	14.9	0	0	10.8	5.2	3.7	93.9	0.7
14	Amos Rusie	1894	14.3	0	0	10.4	7.6	5.1	121.6	0.7
	Babe Ruth	1921	12.9	12.2	-0	10.4	5.8	5.1	114.9	0.6
16	Rogers Hornsby	1924	12.1	11.5	1.1	10.2	5.2	4.5	105	0.6
17	Carl Yastrzemski	1967	12.4	9.9	1.7	10.1	4.1	3.7	90	0.6
	Cy Young	1892	14.1	0	0	10.1	5.2	3.4	88.3	0.7
	Walter Johnson	1912	13.5	0	0	10.1	4.5	2.8	84.9	0.7
20	Babe Ruth	1927	12.4	11.2	0.5	9.9	5.6	5	106.3	0.6
	Barry Bonds	2002	11.8	11.8	-0.7	9.9	5.2	4.5	101.7	0.6
	Barry Bonds	2001	11.9	12.4	-1.2	9.9	5.5	4.7	105.8	0.6
	Kid Nichols	1890	13.1	0	0	9.9	5.6	3.5	83.9	0.7
	Tommy Bond	1878	13.8	0	0	9.9	4.8	3.3	89.8	0.7
25	Toad Ramsey	1886	12.6	0	0	9.8	5.8	4.3	97.8	0.6
	Tommy Bond	1879	14.4	0	0	9.8	5.1	3.6	90.1	0.7
	Dwight Gooden	1985	12.2	0	0	9.8	4.1	1.9	77.7	0.8
28	Pedro Martinez	2000	11.7	0	0	9.7	5.3	2.1	93.5	0.8
	Babe Ruth	1920	11.9	11.8	-0.5	9.7	5.5	4.8	102	0.6
30	Roger Clemens	1997	11.9	0	0	9.4	5	2.4	86.8	0.8
	Mickey Mantle	1957	11.3	11.3	-0.1	9.4	4.8	4.2	92	0.6
	Pete Alexander	1920	12.1	0	0	9.4	3.9	2.3	72.4	0.7
33	Lou Gehrig	1927	11.8	11.3	-0.2	9.3	5.6	5	100	0.6
	Mickey Mantle	1956	11.3	10.7	0.5	9.3	5.3	4.7	96.4	0.6
	Honus Wagner	1908	11.5	11.4	1.4	9.3	3.8	3.3	77.1	0.6
	Steve Carlton	1972	12.1	0	0	9.3	3.9	2.2	75.2	0.7
	Babe Ruth	1924	11.7	10.8	0.2	9.3	5.6	5	99.2	0.6
38	Cal Ripken	1991	11.5	9.2	3.4	9.2	4.9	4.5	88.6	0.6
39	Cy Young	1901	12.6	0	0	9.1	5.5	3.4	83.5	0.7
	Babe Ruth	1926	11.5	11.1	-0.2	9.1	5.4	4.8	94.9	0.6
41	Joe Morgan	1975	11	9.4	2	9	4.6	4.1	84.7	0.6
	Ted Williams	1946	10.9	10.5	-0.3	9	4.6	4.1	84.5	0.6
43	Tony Mullane	1884	11.6	0	0	8.9	5.2	3.9	68.6	0.6
	Mookie Betts	2018	10.9	8.7	1.8	8.9	5.1	4.6	86.8	0.6
	Cy Young	1895	12.1	0	0	8.9	6.8	4.6	93.9	0.7
	Hal Newhouser	1945	11.2	0	0	8.9	3.9	2.2	66.9	0.7
	Randy Johnson	2002	10.9	0	0	8.9	4.5	2.4	75.7	0.8
	Jim Devlin	1877	13.3	0	0	8.9	5.3	3.9	85.6	0.6
49	Ty Cobb	1917	11.4	10.6	0.2	8.8	4.1	3.6	75.7	0.6
	Ted Williams	1942	10.6	10.1	-0.2	8.8	4.8	4.3	85.1	0.6

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Glossary

WAR: Wins Above Replacement
OFF: Offensive Wins Above Replacement
DEF: Defensive Wins Above Replacement
WAA: Wins Above Average
TRPG: Average Team Runs Per Game With Player
ORPG: Opponent Team Runs Per Game Against Player
RAA: Runs Above Average
WAAWP: W-L Percentage Off Wins Above Average
RB: Batting Runs From Weighted Runs Above Average
RBR: Baserunning Runs From Weighted Runs Above Average
RAR: Runs Above Replacement
RAAO: Offensive Runs Above Average
WAAO: Offensive Wins Above Average

WAAWPO: W-L Percentage Off Offensive Wins Above Average
WAAD: Defensive Wins Above Average
WAAWPD: W-L Percentage Off Defensive Wins Above Average
RAAD: Defensive Runs Above Average
RGP: Superlative Defensive Plays
RIF: Infield Defensive Ability
ROF: Outfield Arm Ratings
RC: Catcher Defense
RD: Overall Defensive Ability
RA: Actual Runs Allowed
BIP: Percentage Of Team's Balls In Play
PPF: The Pitchers Team Park Factor

WAR data provided by Baseball-Reference