Bill Mazeroski

1956–1972 · 17 seasons · Bats right, throws right · Born 1936

JavaScript is switched off, so the extra columns cannot be unfolded. Every season below is already on the page and every number in it is real.

17 of 26 columns. Folded away: CS, TB, HBP, wOBA, wRAA, WAR: Bat, WAR: Field, WAR: Run, WAR: Pos.

Skip the season table (18 keyboard stops) ↓

Hitting

SeasonTeamLgGPAABRH2B3BHRRBIBBSOSBAVGOBPSLGOPSWAR
1956Pittsburgh PiratesNL8127725530628131418240.243.293.318.611-0.1
1957Pittsburgh PiratesNL1485685265914927785427493.283.318.407.7252.4
1958GGPittsburgh PiratesNL15260756769156246196825711.275.308.439.7473.7
1959Pittsburgh PiratesNL1355374935011915675929541.241.283.339.621-0.3
1960GGPittsburgh PiratesNL15159153858147215116440504.273.320.392.7123.1
1961GGPittsburgh PiratesNL15259555871148212135926552.265.298.380.6783.0
1962Pittsburgh PiratesNL15961757255155249148137470.271.315.418.7333.9
1963GGPittsburgh PiratesNL1425765344313122385232462.245.286.343.6293.6
1964GGPittsburgh PiratesNL16264460166161228106429521.268.300.381.6813.0
1965GGPittsburgh PiratesNL1305274945213417165418342.271.294.346.6412.6
1966GGPittsburgh PiratesNL16266062156163227168231624.262.296.398.6944.7
1967GGPittsburgh PiratesNL1636796396216725397730551.261.292.352.6444.1
1968Pittsburgh PiratesNL1435565063612718234238383.251.304.312.6163.2
1969Pittsburgh PiratesNL6725622713527132522161.229.298.308.6060.3
1970Pittsburgh PiratesNL112404367298414073927402.229.283.324.6070.2
1971Pittsburgh PiratesNL702131931749311161580.254.303.295.5990.1
1972Pittsburgh PiratesNL3472643124003350.188.217.250.467-0.3
Career17 seasons21638379775576920162946213885344770627.260.302.367.66937.4

Gold shading marks a top-five finish in that league that season. Filled for first, shaded for second and third, faint for fourth and fifth, with the exact place in the corner of the cell. These rankings are ours, not part of the source data: we work them out from the season lines on this site and count each league on its own, so a first in the American League is not a first across baseball. Rate statistics use the same qualifying line as the season tool, which is why a relief pitcher can have the lowest ERA in his league and still have no shading on it — he did not pitch enough innings to qualify. A ranking is only drawn when its column is on screen; press Show all columns for the rest.

The dark chips beside a season are awards. Those are records rather than our arithmetic: MVP (Most Valuable Player), CY (Cy Young Award), ROY (Rookie of the Year), GG (Gold Glove), SS (Silver Slugger). Two of them are lettered in the metal they are named after — Gold Glove in gold, Silver Slugger in silver — but the letters say which is which, so nothing here depends on telling the two apart by colour.

Any shaded cell or chip will explain itself. Point at one, or tab to it and it opens on focus, and it names the league, the season and the statistic in full. On a touchscreen, tap it once to open and once more to close.

Not every award existed yet. This database has Gold Glove from 1957, Silver Slugger from 1980. A season before that is a season the award did not exist, not a season this player missed out on.

The WAR columns are worked out on this site — they are not part of the source data, and they will not match Baseball-Reference exactly.

Everything else on this page comes straight from the Lahman database. WAR is our own calculation from those same season lines: fielding is estimated from putouts and assists rather than measured, fielding innings are missing before 1954, and the fielding component is capped. Treat it as a reasonable estimate of value, not as a record. The season tool explains the method in full.

means the value is not in the source for that season, which is not the same as zero. In the Career and Subtotal rows it marks a statistic that cannot be added up across seasons — wOBA and FIP both need league constants that change every year, so we leave them blank rather than invent one. Leagues on this page: NL (National League).

Data for 1871 to 2025: Lahman Baseball Database 2025, compiled by SABR (Society for American Baseball Research) and licensed under CC BY-SA 3.0 Unported. Negro Leagues data licensed from Seamheads.com and included under SABR major-league recommendations (2021-02-11, 2024-06-03). The season lines on this page are our own derivative of that database — the WAR columns are computed here — and they are published under the same CC BY-SA 3.0 Unported licence, as ShareAlike requires. That database is published once a season is complete, so the 2026 figures on this site come from a different place: the MLB Stats API, whose notice reads “Copyright 2026 MLB Advanced Media, L.P. Use of any content on this page acknowledges agreement to the terms posted here http://gdx.mlb.com/components/copyright.txt”. Those numbers are MLB Advanced Media, L.P.’s, not SABR (Society for American Baseball Research)’s, and they carry that notice rather than the CC BY-SA 3.0 Unported licence above. Not affiliated with, endorsed by, or connected to Major League Baseball or any of its clubs.