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Jordan Zimmermann

Jordan M. Zimmermann (JZimm)

Position: Pitcher
Bats: Right, Throws: Right
Height: 6' 2", Weight: 225 lb.

Born: May 23, 1986 in Auburndale, WI
High School: Auburndale HS (Auburndale, WI)
School: University of Wisconsin at Stevens Point (Stevens Point, WI)
Drafted
by the Washington Nationals in the 2nd round of the 2007 amateur draft.
Signed June 13, 2007. (All Transactions)
Debut: April 20, 2009 (Age 22.332, 17,115th in MLB history)   vs. ATL 6.0 IP, 6 H, 3 SO, 1 BB, 2 ER, W
Rookie Status: Exceeded rookie limits during 2009 season [*]
Teams (by GP): Nationals/Tigers 2009-2016
2017 Contract Status: not updated, 5 yrs/$110M (16-20) (details) [*]Agents: ISE Baseball [*]
    About biographical information

Career Home Runs Allowed

Jordan Zimmermann: 118 Career Home Runs Allowed

2 leading off, 0 walk-off, 12 tying, 44 go ahead (For more accurate walk-off HR totals, see the Batting Event Finder)
2 Tms
WSN104
DET14
 
vs RHB59
vs LHB59
 
Home62
Away56
 
Leverage
High Lev24
Medium Lev50
Low Lev44
24 Opps
NYM13
BAL12
PHI12
MIA/FLA11
STL8
CHC8
ATL7
COL5
LAD5
MIL5
TBR4
PIT4
MIN3
ARI3
SFG2
SDP2
CIN2
BOS2
CLE2
HOU2
94 Batters
Daniel Murphy4
David Wright3
Giancarlo Stanton3
Logan Morrison3
Albert Pujols2
Justin Bour2
Hunter Pence2
Aaron Altherr2
Matt Kemp2
Chris Davis2
Andrew McCutchen2
Steve Pearce2
Carlos Pena2
Mark Reynolds2
Matt Adams2
Ike Davis2
Jimmy Rollins2
Adam Jones2
Ryan Howard2
Dioner Navarro1
20 Parks
Nationals Pk52
Comerica Pk11
Camden Yards7
Citi Field7
CitizensBank7
Wrigley Fld6
Coors Fld5
Marlins Park3
PetCo Pk2
Turner Fld2
Dodger Stad2
Fenway Pk2
Busch Std II2
Jacobs Fld2
GreatAmer BP2
MinuteMaidPk2
Chase Field1
TargetFld1
PNC Pk1
TropicanaFld1
Where Hit
940
729
8920
7819
810
General field locations
when available.
 
1 Inside the Park
 
Pitches
228
322
421
517
113
612
7+5
Pitches in PA
when available.
Game Totals
1·HR gms53
2·HR gms19
3·HR gms9
Gms w/ this # = 0
are not shown.
 
OrderPos
4th24
3rd20
6th18
5th16
7th11
2nd10
1st9
8th7
9th3
Outs
045
239
134
 
DefPos
1B31
RF17
3B14
LF12
C11
2B10
CF10
SS8
DH4
PH1
Bases
---65
1--32
-2-9
12-5
1232
--32
1-32
-231
 
183 Runs
RISP21
0 on65
1 on43
2 on8
3 on2
Any on53
Inning
115
224
315
422
514
617
710
81
 
1-354
4-653
7-end11
RelScore
+4..4
+37
+28
+117
Tied33
-117
-214
-37
-4..11
 
Ahead36
Tied33
Behind49
Before event,
for batter
Count
1-217
1-015
1-114
3-213
0-013
0-113
3-19
2-28
0-27
2-16
3-02
2-01

Play By Play

View Pitches · WE and WPA Explanation
2009 HRs#car#yr#gmDateBatter@Bat ScoreInnOutRoBPit(cnt)RBOPPosbWPAbWENotesPlay Description
11112009-04-20Matt DiazATL@WSNtied 0-0t 42--33,(0-2) 26722%71%Home Run (Fly Ball to Deep LF-CF); Jones Scores
22212009-05-01Albert PujolsSTL@WSNtied 0-0t 12---5,(3-1) 13310%57%Home Run (Fly Ball to Deep LF Line)
33322009-05-01Chris DuncanSTL@WSNahead 1-0t 40-2-2,(1-0) 24713%82%Home Run (Fly Ball to Deep RF); Pujols Scores
44432009-05-01Ryan LudwickSTL@WSNahead 3-0t 611--4,(1-2) 2598%95%Home Run (Fly Ball to Deep CF); Pujols Scores
55512009-05-07Matt KempLADWSNahead 1-0b 111232,(0-1) 46818%91%Home Run (Fly Ball to Deep CF-RF); Ethier Scores; Loney Scores; Martin Scores
66612009-05-22Nolan ReimoldBAL@WSNtied 0-0t 22---5,(3-1) 16711%57%Home Run (Fly Ball to Deep LF-CF)
77712009-05-27Daniel MurphyNYMWSNtied 3-3b 601--5,(1-2) 25323%85%Home Run (Fly Ball to Deep RF); Sheffield Scores
88812009-06-13Carlos PenaTBRWSNbehind 0-2b 40---2,(0-1) 14312%43%Home Run (Fly Ball to Deep RF)
99912009-07-12Kazuo MatsuiHOUWSNahead 1-0b 7112-2,(0-1) 38415%97%Home Run (Fly Ball to Deep RF); Blum Scores; Pence Scores
10101012009-07-18Alfonso SorianoCHC@WSNbehind 2-4t 611-31,(0-0) 36733%64%Home Run (Fly Ball to Deep CF-RF); Lee Scores; Ramirez Scores/unER
2010 HRs#car#yr#gmDateBatter@Bat ScoreInnOutRoBPit(cnt)RBOPPosbWPAbWENotesPlay Description
1111112010-08-26Albert PujolsSTL@WSNbehind 1-3t 40---2,(0-1) 13311%37%Home Run (Fly Ball to Deep CF-RF)
1212212010-09-12Giancarlo StantonFLA@WSNtied 0-0t 20---6,(3-2) 16911%61%Home Run (Fly Ball to Deep LF)
1313322010-09-12Giancarlo StantonFLA@WSNahead 3-2t 311--5,(1-2) 26917%79%Home Run (Fly Ball to Deep LF Line); Tracy Scores
1414412010-09-18Jayson WerthPHIWSNbehind 0-1b 20---8,(3-2) 15911%55%Home Run (Fly Ball to Deep LF)
1515522010-09-18Ryan HowardPHIWSNahead 2-1b 301--3,(1-1) 24314%84%Home Run (Fly Ball to Deep LF); Utley Scores
1616632010-09-18Raul IbanezPHIWSNahead 4-1b 31---5,(3-1) 1676%89%Home Run (Fly Ball to Deep LF)
1717712010-09-24Omar InfanteATL@WSNbehind 0-3t 52---6,(2-2) 1147%19%Home Run (Line Drive to Deep LF Line)
1818812010-10-01Ike DavisNYMWSNtied 0-0b 41---1,(0-0) 14314%67%Home Run (Fly Ball to Deep RF)
2011 HRs#car#yr#gmDateBatter@Bat ScoreInnOutRoBPit(cnt)RBOPPosbWPAbWENotesPlay Description
1919112011-04-14Carlos RuizPHI@WSNtied 0-0t 60---2,(0-1) 17217%67%Home Run (Fly Ball to Deep LF)
2020212011-05-12Chipper JonesATLWSNbehind 0-2b 32---3,(2-0) 13511%38%Home Run (Fly Ball to Deep CF-RF)
2121312011-05-22Vladimir GuerreroBALWSNbehind 0-1b 701--3,(0-2) 24DH35%79%Home Run (Line Drive to Deep LF); Markakis Scores
2222412011-06-18Adam JonesBAL@WSNtied 0-0t 12---5,(3-1) 13811%57%Home Run (Fly Ball to Deep LF)
2323512011-07-19Clint BarmesHOUWSNtied 0-0b 221--3,(0-2) 27621%74%Home Run (Fly Ball to Deep LF); Lee Scores
2424612011-07-26Logan MorrisonFLA@WSNahead 2-0t 321--2,(1-0) 25715%86%Home Run (Fly Ball to Deep RF); Ramirez Scores
2525722011-07-26Greg DobbsFLA@WSNahead 4-0t 51---3,(0-2) 1334%94%Home Run (Fly Ball to Deep RF Line)
2626812011-08-11Aramis RamirezCHCWSNtied 1-1b 721--4,(1-2) 23534%88%Home Run (Fly Ball to Deep LF-CF); Johnson Scores
2727922011-08-11Carlos PenaCHCWSNahead 3-1b 72---2,(0-1) 1436%94%Home Run (Fly Ball to Deep RF Line)
28281012011-08-23Sean BurroughsARI@WSNtied 0-0t 711--1,(0-0) 28531%82%Home Run (Fly Ball to Deep RF); Young Scores
29291112011-08-28Joey VottoCINWSNbehind 0-1b 12---2,(0-1) 13311%51%Home Run (Line Drive to Deep RF Line)
30301222011-08-28Jay BruceCINWSNtied 1-1b 41---6,(1-2) 14914%67%Home Run (Fly Ball to Deep CF-RF)
2012 HRs#car#yr#gmDateBatter@Bat ScoreInnOutRoBPit(cnt)RBOPPosbWPAbWENotesPlay Description
3131112012-04-25Orlando HudsonSDPWSNbehind 0-2b 52---3,(1-1) 17413%34%Home Run (Fly Ball to Deep RF Line)
3232212012-05-06Hunter PencePHI@WSNbehind 0-1t 401--3,(1-1) 24921%63%Home Run (Fly Ball to Deep LF-CF); Victorino Scores
3333312012-05-17Andrew McCutchenPIT@WSNtied 0-0t 12---3,(1-1) 13810%57%Home Run (Fly Ball to Deep RF Line)
3434422012-05-17Rod BarajasPIT@WSNahead 1-0t 421--2,(0-1) 27220%80%Home Run (Fly Ball to Deep LF); McGehee Scores
3535532012-05-17Andrew McCutchenPIT@WSNahead 3-0t 60---1,(0-0) 1385%92%Home Run (Fly Ball to Deep LF)
3636612012-05-28Logan MorrisonMIAWSNbehind 0-1b 40---5,(2-2) 15314%56%Home Run (Fly Ball to Deep RF Line)
3737722012-05-28Giancarlo StantonMIAWSNbehind 1-3b 601--5,(3-1) 24927%57%Home Run (Fly Ball to Deep LF-CF); Ramirez Scores
3838812012-06-05Jordany ValdespinNYM@WSNbehind 0-3t 60---2,(1-0) 19PH8%21%Home Run (Line Drive to Deep RF Line)
3939922012-06-05David WrightNYM@WSNbehind 1-3t 62---6,(3-2) 13511%27%Home Run (Fly Ball to Deep LF-CF)
40401012012-06-10David OrtizBOSWSNtied 1-1b 40---4,(1-2) 14DH13%69%Home Run (Fly Ball to Deep RF)
41411112012-06-22Mark ReynoldsBALWSNtied 0-0b 22---3,(1-1) 17311%62%Home Run (Fly Ball to Deep LF)
42421212012-07-23David WrightNYMWSNbehind 0-2b 42---4,(1-2) 13512%36%Home Run (Fly Ball to Deep LF-CF)
43431312012-08-20Jason HeywardATL@WSNbehind 2-4t 511--2,(1-0) 23923%47%Home Run (Line Drive to Deep RF Line); Prado Scores
44441412012-08-26Jimmy RollinsPHIWSNahead 1-0b 51-2-5,(3-1) 21615%88%Home Run (Fly Ball to Deep RF); Lee Scores
45451512012-09-01David FreeseSTL@WSNbehind 0-4t 201--6,(2-2) 26512%29%Home Run (Fly Ball to Deep CF); Molina Scores
46461622012-09-01Matt HollidaySTL@WSNbehind 2-6t 311--1,(0-0) 23712%25%Home Run (Fly Ball to Deep CF); Jay Scores
47471712012-09-06Anthony RizzoCHC@WSNtied 0-0t 12---4,(3-0) 13310%57%Home Run (Fly Ball to Deep CF)
48481812012-09-24Corey HartMIL@WSNbehind 0-1t 20---1,(0-0) 15311%50%Home Run (Fly Ball to Deep CF-RF)
2013 HRs#car#yr#gmDateBatter@Bat ScoreInnOutRoBPit(cnt)RBOPPosbWPAbWENotesPlay Description
4949112013-04-04Justin RuggianoMIA@WSNbehind 0-2t 20---1,(0-0) 15810%39%Home Run (Fly Ball to Deep CF-RF)
5050212013-04-21John BuckNYMWSNtied 0-0b 20---5,(3-1) 15212%67%Home Run (Fly Ball to Deep LF-CF)
5151312013-05-18Yonder AlonsoSDPWSNtied 0-0b 20---2,(1-0) 14312%67%Home Run (Line Drive to Deep RF Line)
5252412013-05-29Chris DavisBALWSNbehind 1-3b 40---6,(3-2) 15312%42%Home Run (Fly Ball to Deep CF-RF)
5353522013-05-29Nick MarkakisBALWSNbehind 2-6b 60---2,(0-1) 1396%16%Home Run (Fly Ball to Deep CF-RF)
5454632013-05-29Steve PearceBALWSNbehind 3-6b 701--4,(2-1) 29DH19%36%Home Run (Fly Ball to Deep LF-CF); Flaherty Scores
5555712013-06-15Carlos SantanaCLEWSNbehind 1-5b 42---5,(3-1) 1526%16%Home Run (Fly Ball to Deep CF-RF)
5656822013-06-15Mark ReynoldsCLEWSNbehind 2-5b 42---6,(3-2) 1659%25%Home Run (Fly Ball to Deep LF)
5757912013-07-01Rickie WeeksMIL@WSNbehind 2-8t 62---4,(1-2) 1641%2%Home Run (Fly Ball to Deep LF Line)
58581022013-07-01Juan FranciscoMIL@WSNbehind 3-8t 62---5,(1-2) 1732%5%Home Run (Fly Ball to Deep CF-RF)
59591112013-07-21Matt KempLAD@WSNtied 0-0t 20---5,(2-2) 16811%61%Home Run (Line Drive to Deep LF Line)
60601222013-07-21Hanley RamirezLAD@WSNahead 3-0t 2212-2,(1-0) 34614%93%Home Run (Fly Ball to Deep LF-CF); Crawford Scores; Punto Scores
61611312013-07-26 (1)Daniel MurphyNYM@WSNtied 0-0t 11---3,(1-1) 12411%59%Home Run (Fly Ball to Deep CF-RF)
62621422013-07-26 (1)Daniel MurphyNYM@WSNahead 1-0t 32-2-6,(3-2) 22418%79%Home Run (Line Drive to Deep RF Line); Lagares Scores
63631512013-08-19Nate SchierholtzCHCWSNtied 0-0b 111-35,(2-2) 34919%81%Home Run (Fly Ball to Deep RF); Lake Scores; Navarro Scores
64641622013-08-19Donnie MurphyCHCWSNahead 4-0b 40---2,(1-0) 1653%96%Home Run (Fly Ball to Deep RF)
65651732013-08-19Dioner NavarroCHCWSNahead 5-0b 5012-4,(2-1) 3322%100%Home Run (Fly Ball to Deep CF-RF); Lake Scores; Barney Scores
66661812013-08-30Ike DavisNYM@WSNbehind 0-1t 411--1,(0-0) 24324%61%Home Run (Line Drive to Deep LF-CF); Murphy Scores
67671912013-09-25Matt AdamsSTLWSNahead 3-1b 61---4,(1-2) 1437%92%Home Run (Fly Ball to Deep RF)
2014 HRs#car#yr#gmDateBatter@Bat ScoreInnOutRoBPit(cnt)RBOPPosbWPAbWENotesPlay Description
6868112014-04-04Evan GattisATL@WSNtied 0-0t 50---2,(0-1) 17215%65%Home Run (Fly Ball to Deep LF-CF)
6969212014-04-09Derek DietrichMIA@WSNahead 3-0t 211--3,(1-1) 22410%90%Home Run (Line Drive to Deep CF-RF); Yelich Scores
7070312014-04-14Garrett JonesMIAWSNbehind 1-5b 61---4,(1-2) 1435%11%Home Run (Line Drive to Deep RF Line)
7171412014-05-12A.J. PollockARIWSNbehind 3-4b 61-2-2,(1-0) 27832%73%Home Run (Line Drive to Deep CF-RF); Hill Scores
7272512014-05-23Pedro AlvarezPITWSNahead 2-0b 411--2,(1-0) 26512%92%Home Run (Fly Ball to Deep CF); Davis Scores
7373612014-06-13Matt AdamsSTLWSNtied 0-0b 22---2,(1-0) 16312%63%Home Run (Fly Ball to Deep CF-RF)
7474712014-07-11Jimmy RollinsPHIWSNahead 2-0b 301--2,(0-1) 22611%91%Home Run (Fly Ball to Deep RF Line); Sizemore Scores
7575812014-07-22Nolan ArenadoCOLWSNahead 1-0b 32--34,(1-2) 25516%82%Home Run (Fly Ball to Deep LF-CF); Rutledge Scores
7676922014-07-22Corey DickersonCOLWSNahead 3-2b 51---2,(1-0) 13711%80%Home Run (Fly Ball to Deep RF)
77771012014-08-18Didi GregoriusARI@WSNbehind 1-2t 801--8,(3-2) 28643%76%Home Run (Line Drive to Deep RF); Lamb Scores
78781112014-08-23Hunter PenceSFG@WSNtied 0-0t 10-2-3,(0-2) 22914%70%Home Run (Fly Ball to Deep CF); Pagan Scores
79791212014-09-03Justin TurnerLADWSNtied 0-0b 71-2-7,(3-2) 26527%89%Home Run (Fly Ball to Deep CF); Crawford Scores
80801312014-09-09Justin UptonATL@WSNbehind 2-6t 611--4,(1-2) 24710%18%Home Run (Fly Ball to Deep LF-CF); Gosselin Scores/unER
2015 HRs#car#yr#gmDateBatter@Bat ScoreInnOutRoBPit(cnt)RBOPPosbWPAbWENotesPlay Description
8181112015-04-13Mookie BettsBOSWSNahead 1-0b 2112-3,(1-1) 31818%87%Home Run (Line Drive to Deep LF); Bogaerts Scores/unER; Leon Scores
8282212015-05-04Justin BourMIA@WSNtied 1-1t 70---6,(3-2) 15320%70%Home Run (Fly Ball to Deep LF)
8383312015-05-26Dexter FowlerCHCWSNtied 0-0b 10---6,(2-2) 11810%65%Lead-OffHome Run (Fly Ball to Deep RF)
8484412015-06-17Steven SouzaTBR@WSNtied 0-0t 50---3,(1-1) 16914%64%Home Run (Fly Ball to Deep LF-CF)
8585522015-06-17Curt CasaliTBR@WSNahead 1-0t 51---5,(3-1) 18212%74%Home Run (Line Drive to Deep LF)
8686612015-07-05Brandon CrawfordSFG@WSNbehind 0-1t 42---4,(3-0) 15613%45%Home Run (Line Drive to Deep RF Line)
8787712015-07-11Caleb JosephBALWSNbehind 1-2b 221--4,(2-1) 29221%62%Home Run (Line Drive to Deep LF-CF); Hardy Scores
8888822015-07-11Steve PearceBALWSNahead 3-2b 40---4,(1-2) 16910%79%Home Run (Fly Ball to Deep LF Line)
8989912015-07-17Adrian GonzalezLAD@WSNbehind 0-1t 401--3,(1-1) 24321%63%Home Run (Line Drive to Deep RF Line); Turner Scores
90901012015-08-02Curtis GrandersonNYMWSNbehind 0-1b 32-2-5,(2-2) 21924%65%Home Run (Fly Ball to Deep RF Line); Plawecki Scores
91911122015-08-02Daniel MurphyNYMWSNahead 2-1b 32---1,(0-0) 12411%76%Home Run (Fly Ball to Deep RF Line)
92921232015-08-02Lucas DudaNYMWSNahead 3-1b 321--1,(0-0) 24313%90%Home Run (Fly Ball to Deep RF Line); Cespedes Scores
93931312015-08-18Carlos GonzalezCOLWSNbehind 0-2b 11-2-3,(1-1) 23915%53%Home Run (Fly Ball to Deep RF Line); Reyes Scores
94941422015-08-18Jose ReyesCOLWSNahead 3-2b 22---3,(0-2) 11610%71%Home Run (Line Drive to Deep RF)
95951532015-08-18Kyle ParkerCOLWSNbehind 5-6b 60---4,(1-2) 17717%58%Home Run (Line Drive to Deep LF)
96961612015-08-23Jonathan LucroyMIL@WSNtied 0-0t 101--4,(2-1) 22216%69%Home Run (Fly Ball to Deep CF); Gennett Scores
97971722015-08-23Scooter GennettMIL@WSNbehind 2-5t 50---8,(3-2) 1149%24%Home Run (Fly Ball to Deep RF)
98981812015-08-29Justin BourMIA@WSNbehind 0-5t 70---2,(1-0) 1533%5%Home Run (Fly Ball to Deep CF-RF)
99991912015-09-08David WrightNYM@WSNbehind 0-2t 20---8,(3-2) 14510%39%Home Run (Line Drive to Deep LF Line)
1001002012015-09-14Ryan HowardPHIWSNbehind 0-1b 21---4,(2-1) 15312%53%Home Run (Line Drive to Deep RF Line)
1011012122015-09-14Cody AschePHIWSNbehind 3-6b 6112-3,(1-1) 37534%54%Home Run (Line Drive to Deep CF-RF); Altherr Scores; Sweeney Scores
1021022212015-09-25Aaron AltherrPHI@WSNbehind 0-1t 311233,(1-1) 42729%79%IPHRInside-the-park Home Run to LF (Line Drive to Deep CF); Bogusevic Scores; Rupp Scores; Eickhoff Scores
1031032322015-09-25Aaron AltherrPHI@WSNahead 4-1t 51---2,(1-0) 1276%90%Home Run (Fly Ball to Deep LF)
1041042432015-09-25Darin RufPHI@WSNahead 5-1t 52---2,(1-0) 1434%93%Home Run (Fly Ball to Deep LF-CF)
2016 HRs#car#yr#gmDateBatter@Bat ScoreInnOutRoBPit(cnt)RBOPPosbWPAbWENotesPlay Description
105105112016-04-30Byung Ho ParkMINDETbehind 0-3b 42---4,(1-2) 1539%26%Home Run (Line Drive to Deep LF-CF)
106106212016-05-06Rougned OdorTEX@DETahead 2-0t 52---2,(1-0) 1149%82%Home Run (Fly Ball to Deep RF)
107107312016-05-11Danny EspinosaWSNDETahead 2-1b 71---2,(0-1) 18611%88%Home Run (Line Drive to Deep CF-RF)
108108412016-05-16Kurt SuzukiMIN@DETbehind 0-8t 221--3,(1-1) 2823%5%Home Run (Fly Ball to Deep LF); Rosario Scores
109109522016-05-16Miguel SanoMIN@DETbehind 2-8t 32---1,(0-0) 1393%7%Home Run (Fly Ball to Deep LF)
110110612016-05-22Logan MorrisonTBR@DETbehind 0-2t 211--4,(2-1) 26DH18%48%Home Run (Fly Ball to Deep RF); Souza Scores
111111712016-06-08Justin SmoakTOR@DETtied 0-0t 12-2-6,(3-2) 24318%66%Home Run (Fly Ball to Deep RF); Donaldson Scores
112112822016-06-08Josh DonaldsonTOR@DETtied 2-2t 30-235,(2-2) 32514%80%Home Run (Fly Ball to Deep LF); Thole Scores; Bautista Scores
113113912016-08-04Avisail GarciaCHW@DETtied 1-1t 20---1,(0-0) 17911%61%Home Run (Fly Ball to Deep CF)
1141141022016-08-04Jose AbreuCHW@DETahead 4-1t 221--2,(0-1) 24312%88%Home Run (Line Drive to Deep LF); Cabrera Scores
1151151112016-09-10Adam JonesBAL@DETtied 0-0t 10---1,(0-0) 11810%60%Lead-OffHome Run (Fly Ball to Deep LF)
1161161222016-09-10Chris DavisBAL@DETahead 1-0t 111--3,(0-2) 24315%75%Home Run (Fly Ball to Deep LF-CF); Machado Scores
1171171332016-09-10Matt WietersBAL@DETahead 3-1t 201--4,(1-2) 28212%85%Home Run (Fly Ball to Deep RF); Alvarez Scores
1181181412016-10-01Freddie FreemanATLDETbehind 0-1b 401--6,(3-2) 23322%69%Home Run (Fly Ball to Deep CF-RF); Garcia Scores

About the SABR Home Run Encyclopedia

Much of the data on Baseball-Reference.com's Home Run Logs comes from the Tattersall/McConnell Home Run Log, a database of all homers hit in the major leagues since 1876. This project was begun in the 1940's by John C. Tattersall and was continued after Tattersall's death in 1981 by Bob McConnell, one of SABR's original 16 members. David Vincent, another SABR member, has since assumed the leadership of the project. Baseball-Reference.com has licensed this remarkable database from the Society for American Baseball Research. All credit for the data therein goes to the intrepid researchers who digitized this data from archival sources.

For years from 1913 to 2016, RetroSheet play-by-play data has been used whenever the home run occurred in a game for which we have complete play-by-play data.

There are a handful of cases where the home run logs totals do not agree with the totals on our player pages. We are working to reconcile all of those differences, but believe that in all cases the Home Run Encyclopedia is correct.