A. J. Pierzynski

1998–2016 · 19 seasons · Bats left, throws right · Born 1976

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 (19 keyboard stops) ↓

Hitting

SeasonTeamLgGPAABRH2B3BHRRBIBBSOSBAVGOBPSLGOPSWAR
1998Minnesota TwinsAL71310130001120.300.385.300.6850.1
1999Minnesota TwinsAL92422362003140.273.333.364.6970.1
2000Minnesota TwinsAL3396881227512115141.307.354.455.8090.6
2001Minnesota TwinsAL1144053815111033275516571.289.322.441.7631.6
2002Minnesota TwinsAL1304694405413231664913611.300.334.439.7732.4
2003Minnesota TwinsAL13753348763152353117424553.312.360.464.8243.4
2004San Francisco GiantsNL13151047145128282117719270.272.319.410.7291.8
2005Chicago White SoxAL12849746061118210185623680.257.308.420.7281.7
2006Chicago White SoxAL14054350965150240166422721.295.333.436.7692.5
2007Chicago White SoxAL13650947254124240145025661.263.309.403.7121.3
2008Chicago White SoxAL13457053466150311136019711.281.312.416.7281.9
2009Chicago White SoxAL13853550457151221134924521.300.331.425.7552.2
2010Chicago White SoxAL1285034744312829095615393.270.300.388.6881.5
2011Chicago White SoxAL1295004643813329184823330.287.323.405.7282.7
2012SSChicago White SoxAL13552047968133184277728780.278.326.501.8274.4
2013Texas RangersAL13452950348137241177011761.272.297.425.7222.7
2014Boston Red SoxAL102362338258512153714540.251.288.337.6250.5
2015Atlanta BravesNL1134364073812224194919370.300.339.430.7692.9
2016Atlanta BravesNL8125924715541502236291.219.243.304.547-0.8
Career19 seasons20597813729080720434072418890930889515.280.321.420.74133.2

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.

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: AL (American League), 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.