Tuesday, June 2, 2026

How did Google AI find Baseball Reference data that Baseball Reference could not?

I'm sure that Baseball Reference could have found the data. It simply had not written a query to do so. I have had a subscription for many years and I spent a fair amount of time poking around but I came up empty. Finally, I sent a message to Baseball Reference and it confirmed that it did not have a query to do it:

Hi Kenneth,
Thanks for the question. Unfortunately there is no way to do that type of search using any of the Stathead tools. We're very sorry about that. If there is anything else I can help with, please let me know.
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What was I looking for?


None allowed Home Runs to all four. Click link view all data
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The Gumpert post made me wonder if any pitcher had allowed Home Runs to all four Yankee greats. I was pretty sure that none had but I needed to check. Where better than the Home Run Log in Baseball Reference?

When I couldn't find a query to provide the data I dragged it out of Baseball Reference for each of the four Yankees and put it into a spreadsheet. The link for that is in the "27 pitchers" post and repeated here:

Click link view all data.

For instance, here is the Home Run Log for Babe Ruth:


Right at the top:


It tells me that Ruth homered off 216 pitchers and lists the top ones. If I click "Show All", it does. I highlighted all and did copy/paste into my spreadsheet. Repeat for the other three Yankees and I had the data to work with.

Note: I pulled the data into Microsoft Access, a single user Database Management System (DBMS). But Access must be maintained by _____ (less than competent people) these days and it did not perform what should have been as easy task.

Eventually I matched things up and filled out a master list of the 27 pitchers who allowed at least one home run to three of the four Yankees. Ruth had the most of the four Yankees against any pitcher: 17.

Then I wondered if any batters hit more than 17 HR against any pitchers. I remembered that Willie Mays hit his first and many more against fellow Hall of Famer Warren Spahn.

Home Run Log for Willie Mays:




Mays off Spahn take the lead with 18. But it's not practical to search this way, especially when the data is obviously in at least one baseball database.

******************************

I figured, what the heck. Let's try Google search, which has been beefed up with Artificial Intelligence (AI) using its Gemini software.

At least 17 career home runs against individual pitchers?

Resulting link:

AI Overview

In Major League Baseball (MLB) history, there are exactly five instances where a batter hit at least 17 career home runs against an individual pitcher. [1]

This exclusive, all-time power list features the following batter-versus-pitcher matchups: [1, 2]
This exclusive, all-time power list features the following batter-versus-pitcher matchups: [1, 2]
  • 19 Home Runs: Duke Snider against Robin Roberts
  • 18 Home Runs: Willie Mays against Warren Spahn
  • 17 Home Runs: Henry Aaron against Don Drysdale
  • 17 Home Runs: Stan Musial against Warren Spahn
  • 17 Home Runs: Babe Ruth against Rube Walberg [1]
You can dive deeper into these legendary individual matchups and their full career statistics on Baseball-Reference.
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Note the ironic mention of Baseball-Reference.

I checked each of the five and the numbers are correct. I could not check for a number higher than 19.

Home Run Log for Duke Snider:


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The footnotes offer confusing stuff.


Which MLB player holds the record for most home runs hit off of one pitcher?
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It has the answer and ironically, shows what appears to be a copy/paste of Duke Snider's career stats against fellow Hall of Famer Robin Roberts from ... Baseball Reference.

If it also shows how the Quora guy, Christopher Pellerito, found the data, I did not see it. I'm not familiar with Quora.

So maybe all Google AI did was grab this. But it had other footnotes.

Here's the next:


Willie Mays holds the record for hitting home runs in the most different innings. Mays hit at least one home run in every inning from one to sixteen. His first-inning and sixteenth-inning home runs, both off Warren Spahn, are the most noteworthy. The one in the first inning was the first of Mays’s career, and the sixteenth-inning blast broke up one of the all-time great pitching duels and provided a 1-0 victory for Juan Marichal.
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Interesting but it has nothing to do with my question.

Further down but not a footnote:


which player has the most home runs against a single pitcher all-time

11 (eleven):

Rickey Henderson off Frank Tanana
Gary Carter off Steve Carlton
Mike Schmidt off Steve Forsch

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Incorrect.

That's enough.

Did Google AI have a lucky guess? How did Quora guy Christopher Pellerito come up with the answer? I could not figure out how to ask him.

Friday, May 29, 2026

27 pitchers allowed Home Runs to 3 of 4 Yankees Mount Rushmore: Ruth, Gehrig, DiMaggio, Mantle.

None allowed Home Runs to all four. Click link view all data.

Sorted on Total:

PitcherNumBatRuthGehrigDiMaggioMantleTotal
Rube Walberg31711230
Ted Lyons3108422
Lefty Grove399220
Tommy Thomas3115218
George Uhle3124117
Jack Knott316916
Bill Dietrich327615
Bob Feller3311115
Elon Hogsett315713
Jack Russell374112
Oral Hildebrand328212
Schoolboy Rowe335412
Vic Sorrell382111
Tommy Bridges353210
Ivy Andrews31629
Wes Ferrell34419
Bump Hadley32518
Carl Fischer33227
Fritz Ostermueller32327
Elden Auker32136
Monte Weaver33126
Red Ruffing33216
Randy Gumpert31225
PitcherNumBatRuthGehrigDiMaggioMantleTotal

Randy Gumpert allowed Home Runs to Yankee greats Gehrig, DiMaggio, Mantle.  Friday, May 29, 2026

Mt. Rushmore: Ruth, Gehrig, DiMaggio, Mantle. Giants come close.  Tuesday, June 25, 2024

Randy Gumpert allowed Home Runs to Yankee greats Gehrig, DiMaggio, Mantle.

Randy Gumpert

Position: Pitcher

Bats: Right  •  Throws: Right

6-3, 185lb (190cm, 83kg)

Born: January 23, 1918 in Monocacy, PA us

Died: November 25, 2008 (Aged 90-307d) in Wyomissing, PA

Randy Gumpert pitched only in the American League in 1936,1937, 1938, ... 1946 with Yankees, 1947 with Yankees, 1948 first 25 innings with Yankees, 1949, 1950, 1951, 1952.

Gumpert's second Home Run allowed was to Gehrig. The last was to Mantle.

In 1949 Gumpert threw his most innings: 234. He led AL with 22 HR allowed in 1949.

SeasonAgeTeamLgWARWLW-L%ERAGGSGFCGSHOSVIPHRBBSOBFERA+HR9
193618PHAAL0.512.3334.762231220262.123292861060.3
193719PHAAL-0.50012.00101500012.0115565400.8
193820PHAAL-0.602.00010.9542100012.1110172450.7
194628NYYAL2.2113.7862.31331210401132.2832635321490.5
194729NYYAL-0.941.8005.43246420056.142825258650.6
1948302TMAL2.236.3333.60311112610122.1619435101170.4
194830NYYAL0.3101.0002.88150700025.006121091430.0
194830CHWAL1.826.2503.791611561097.1613314011120.6
194931CHWAL2.61316.4483.81343221831234.02283789811090.8
195032CHWAL0.9512.2944.75401712610155.1155848672950.9
195133CHWAL0.798.5294.32331610712141.2203445616941.3
1952342TMAL0.359.3574.22301311201123.2133535532860.9
195234BOSAL0.0101.0004.12101500119.215681970.5
195234WSHAL0.349.3084.2420126200104.0123029451841.0
10 Y10 Y10 Y10 Y7.35159.4644.172611137947671052.2923463524524980.8

Home Run log:

HR to Gehrig, DiMaggio, Mantle:

1936-08-15 Gehrig

1949-07-17 (1) DiMaggio

1950-07-30 (1) DiMaggio

1951-05-01 Mantle (1 of 536)

1952-08-30 Mantle (last allowed by Gumpert)

https://www.baseball-reference.com/players/event_hr.fcgi?id=gumpera01&t=p

1936#car#yr#gmDateBatter@Bat ScoreInnOutRoBRBOPPos
11111936-07-05 (1)John KronerBOSPHAahead 12-2b 611--275
22211936-08-15Lou GehrigNYY@PHAahead 11-2t 81123443
1937#car#yr#gmDateBatter@Bat ScoreInnOutRoBRBOPPos
33111937-10-02 (2)Buddy LewisWSH@PHAtied 0-0t 101--225
1938#car#yr#gmDateBatter@Bat ScoreInnOutRoBRBOPPos
44111938-09-17 (1)Gee WalkerCHWPHAbehind 0-2b 12---139
55211938-09-21 (1)Hank GreenbergDETPHAbehind 1-3b 1012-343
1946#car#yr#gmDateBatter@Bat ScoreInnOutRoBRBOPPos
66111946-04-24Rudy YorkBOSNYYbehind 0-1b 20-2-253
77211946-05-22Hank GreenbergDETNYYtied 0-0b 1212-353
88311946-06-16 (2)Vern StephensSLBNYYbehind 4-5b 60---136
99411946-08-01Roy CullenbineDETNYYbehind 1-3b 62---169
1010511946-08-08 (2)Jake EarlyWSHNYYbehind 0-4b 52---182
1111611946-08-20Taffy WrightCHW@NYYahead 7-2t 711--249
1212711946-08-25Hal NewhouserDET@NYYbehind 0-1t 51---191
1313821946-08-25Hank GreenbergDET@NYYtied 1-1t 61---143
1947#car#yr#gmDateBatter@Bat ScoreInnOutRoBRBOPPos
1414111947-06-01Eddie RobinsonCLENYYbehind 7-11b 801--253
1515211947-07-20 (2)Pat MullinDETNYYbehind 5-11b 611--29PH
1616321947-07-20 (2)Roy CullenbineDETNYYbehind 7-11b 9012-323
1717411947-08-06Sam ChapmanPHANYYahead 4-1b 81---158
1948#car#yr#gmDateBatter@Bat ScoreInnOutRoBRBOPPos
1818111948-08-08 (1)Matt BattsBOS@CHWahead 3-0t 50---182
1919211948-08-25Yogi BerraNYYCHWahead 4-0b 60---159
2020321948-08-25Tommy HenrichNYYCHWahead 5-0b 72---133
2121411948-09-17Sam ChapmanPHA@CHWbehind 0-4t 711--258
2222511948-09-19 (1)Eddie YostWSH@CHWahead 9-7t 91---165
2323611948-10-03 (2)Al ZarillaSLB@CHWbehind 1-2t 52---128
1949#car#yr#gmDateBatter@Bat ScoreInnOutRoBRBOPPos
2424111949-04-20Johnny GrothDETCHWbehind 1-2b 81123478
2525211949-05-03Bud StewartWSH@CHWtied 0-0t 11---129
2626321949-05-03Eddie RobinsonWSH@CHWahead 1-0t 12-2-253
2727411949-05-12Vern StephensBOS@CHWtied 1-1t 112---146
2828511949-05-17Vern StephensBOSCHWbehind 2-3b 81-2-246
2929611949-05-29 (1)Ken KeltnerCLECHWbehind 0-1b 41---155
3030711949-06-02Tommy HenrichNYY@CHWtied 0-0t 1112-349
3131821949-06-02Cliff MapesNYY@CHWahead 3-0t 20---188
3232911949-06-05 (1)Eddie YostWSH@CHWbehind 2-3t 60---115
33331021949-06-05 (1)Sherry RobertsonWSH@CHWbehind 3-5t 81---129
34341111949-06-15Bobby BrownNYYCHWtied 0-0b 21---165
35351221949-06-15Yogi BerraNYYCHWahead 2-0b 5112-352
36361311949-06-19Dom DiMaggioBOSCHWbehind 1-2b 22-23318
37371421949-06-19Ted WilliamsBOSCHWahead 6-2b 7212-337
38381511949-07-17 (1)Joe DiMaggioNYY@CHWtied 1-1t 70---148
39391611949-07-27Bobby DoerrBOSCHWahead 2-0b 60---154
40401711949-08-12Larry DobyCLECHWbehind 2-4b 821--228
41411811949-08-19Bob KennedyCLE@CHWtied 0-0t 71---179
42421911949-09-05 (1)Larry DobyCLECHWahead 1-0b 40---149
43432011949-09-18Ted WilliamsBOSCHWtied 0-0b 11-2-237
44442121949-09-18Vern StephensBOSCHWahead 2-0b 11---146
45452211949-09-23Les MossSLB@CHWtied 0-0t 30---172
1950#car#yr#gmDateBatter@Bat ScoreInnOutRoBRBOPPos
4646111950-05-07 (2)Pete SuderPHACHWtied 0-0b 21---174
4747221950-05-07 (2)Mike GuerraPHACHWahead 1-0b 4212-382
4848311950-05-18Al EvansWSH@CHWbehind 1-3t 4112-382
4949411950-06-23Elmer ValoPHA@CHWbehind 0-3t 41---137
5050521950-06-23Wally MosesPHA@CHWbehind 3-8t 721--229
5151611950-07-02 (2)Sherm LollarSLB@CHWahead 1-0t 52---132
5252711950-07-30 (1)Joe DiMaggioNYY@CHWahead 7-5t 711--258
5353821950-07-30 (1)Johnny MizeNYY@CHWahead 9-5t 821-3343
5454911950-08-17Aaron RobinsonDETCHWahead 5-1b 32---172
55551021950-08-17George KellDETCHWahead 6-2b 50---135
56561111950-08-23 (2)Eddie JoostPHACHWtied 0-0b 32---116
57571221950-08-23 (2)Joe TiptonPHACHWtied 1-1b 51---182
58581311950-08-29Clyde VollmerBOSCHWbehind 0-3b 12-2-247
59591421950-08-29Bobby DoerrBOSCHWtied 6-6b 501--264
60601511950-09-17 (2)Irv NorenWSH@CHWtied 2-2t 90---138
1951#car#yr#gmDateBatter@Bat ScoreInnOutRoBRBOPPos
6161111951-04-25 (1)Jim DelsingSLB@CHWbehind 3-4t 40---168
6262211951-05-01Mickey MantleNYY@CHWahead 5-3t 61-2-219
6363311951-06-22Vern StephensBOSCHWahead 4-3b 42-2-255
6464411951-06-26George KellDET@CHWbehind 0-2t 40---135
6565521951-06-26Vic WertzDET@CHWbehind 1-2t 40---149
6666611951-07-04 (1)Joe GinsbergDETCHWtied 2-2b 41---162
6767721951-07-04 (1)Hoot EversDETCHWahead 3-2b 511-3357
6868811951-07-15 (1)Bob HooperPHA@CHWtied 0-0t 9212-391
6969911951-07-21Mickey VernonWSH@CHWtied 0-0t 20---143
70701011951-07-26Ted WilliamsBOSCHWbehind 5-7b 21-2-237
71711121951-07-26Clyde VollmerBOSCHWtied 7-7b 51---179
72721231951-07-26Dom DiMaggioBOSCHWahead 8-7b 521--218
73731311951-08-02Gus ZernialPHACHWtied 0-0b 50---147
74741411951-08-23Hank MajeskiPHA@CHWahead 3-1t 31---155
75751511951-09-06Ken WoodSLBCHWbehind 2-9b 91-2-277
76761611951-09-15Gus ZernialPHACHWbehind 0-4b 60-23347
77771711951-09-17Clyde VollmerBOSCHWahead 8-0b 52-23349
78781821951-09-17Ted WilliamsBOSCHWahead 11-0b 80---137
79791911951-09-30Ned GarverSLBCHWtied 4-4b 41---191
80802021951-09-30Fred MarshSLBCHWahead 5-4b 521--275
1952#car#yr#gmDateBatter@Bat ScoreInnOutRoBRBOPPos
8181111952-04-16Mickey VernonWSHBOStied 1-1b 62-2-243
8282211952-06-15 (1)Vic WertzDETWSHbehind 0-2b 32--3249
8383321952-06-15 (1)Jerry PriddyDETWSHbehind 2-3b 62---184
8484431952-06-15 (1)Fred HatfieldDETWSHtied 3-3b 70---115
8585541952-06-15 (1)Pat MullinDETWSHahead 4-3b 701--237
8686611952-06-22 (1)Dick KryhoskiSLBWSHbehind 1-4b 601--243
8787721952-06-22 (1)Cass MichaelsSLBWSHbehind 3-8b 911--275
8888811952-07-13 (2)Al RosenCLE@WSHbehind 0-1t 821--245
8989911952-07-24Walt DropoDETWSHtied 2-2b 821--243
90901011952-07-31Al ZarillaSLBWSHbehind 0-6b 32-2-217
91911111952-08-07 (2)Gene WoodlingNYY@WSHahead 5-0t 511--257
92921211952-08-17 (2)Elmer ValoPHAWSHbehind 2-5b 711-3339
93931311952-08-30Mickey MantleNYYWSHtied 1-1b 30---118
Provided by Baseball-Reference.com: View Original Table
Generated 5/29/2026.

Gumpert allowed two HR in a game to Yankees:

1948-08-25 Berra & Henrich

1949-06-02 Henrich & Mapes

1949-06-15 Brown & Berra

1950-07-30 (1) DiMaggio & Mize

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