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A player page shows one box score, because a hitter and a pitcher share almost no column — which half you get follows the one he appears in. Every rate is built from summed counts, so a batting average is hits over at bats across whatever window you picked rather than an average of nightly averages. Pitchers rank against starters or relievers, which is the split the sport itself draws. A dash means no number for that cell, or a zero in a roster column that counts.

BOS

Justin Slaten

Justin Slaten comes in 7th of 234 relief pitchers in walks per 9, at 1.5.

94th beats 94% of the Relief Pitchers; 1 is the best of however many the row says. Higher is always better, whichever way the stat runs. Red to green by where the placing sits. A stat with no better end is left unpainted.

all 4 shown▶
Playing TimeDefensevs Relief Pitchers▶
Games Pitched44
Games Started0
Innings Pitched55.150th142/288
Batters Faced22443rd163/288
Pitches Thrown81136th184/288
ResultsDefensevs Relief Pitchers▶
Wins687th30/288
Losses262nd80/288
Earned Runs1866th95/288
Earned Run Average2.9377th54/234
Runs Allowed2165th98/288
Hits Allowed4749th144/288
Hits per 97.659th96/234
Walks and Hits per Inning1.0186th34/234
Home Runs Allowed470th68/288
Home Runs per 90.781st46/234
Strikeouts5858th119/288
Strikeout Rate25.9%67th82/244
Strikeouts per 99.458th98/234
CommandDefensevs Relief Pitchers▶
Walks Allowed994th16/288
Walk Rate4%98th7/244
Strikeout to Walk Ratio6.4497th8/244
Walks per 91.597th7/234
Intentional Walks017th192/288
Hit Batters257th92/288
Wild Pitches419th220/288
Balks061st1/288
Strike Rate67.3%85th38/247
ReliefDefensevs Relief Pitchers▶
Saves269th73/288
Save Opportunities6
Blown Saves417th226/288
Holds1377th64/288
Games Finished8
Inherited Runners14
Inherited Runners Scored3
Inherited Runners Scored Rate21.4%80th43/214
44 games
DateOppIPWLSVHHRKBBERAWHIP
BOSSep 29, 2024TBTB100110000.001.00
BOSSep 24, 2024@TORTOR100010100.001.00
BOSSep 19, 2024@TBTB100010200.001.00
BOSSep 18, 2024@TBTB110020200.002.00
BOSSep 13, 2024@NYYNYY100020200.002.00
BOSSep 12, 2024@NYYNYY100010100.001.00
BOSSep 11, 2024BALBAL100011009.001.00
BOSSep 8, 2024CWSCWS100000100.000.00
BOSSep 7, 2024CWSCWS100000200.000.00
BOSSep 4, 2024@NYMNYM100010000.001.00
BOSSep 3, 2024@NYMNYM100021009.002.00
BOSAug 30, 2024@DETDET0.200000100.000.00
BOSAug 26, 2024TORTOR100000100.000.00
BOSJuly 7, 2024@NYYNYY100000110.001.00
BOSJuly 5, 2024@NYYNYY110000100.000.00
BOSJuly 4, 2024@MIAMIA0.2000001227.003.00
BOSJune 30, 2024SDSD1.100020106.751.50
BOSJune 23, 2024@CINCIN100000100.000.00
BOSJune 19, 2024@TORTOR200020304.501.00
BOSJune 18, 2024@TORTOR0.100000000.000.00
BOSJune 15, 2024NYYNYY2.210021323.381.50
BOSJune 12, 2024PHIPHI100010000.001.00
BOSJune 9, 2024@CWSCWS200021309.001.00
BOSJune 2, 2024DETDET0.200010100.001.50
BOSMay 31, 2024DETDET100020100.002.00
BOSMay 28, 2024@BALBAL100010100.001.00
BOSMay 26, 2024MILMIL110000300.000.00
BOSMay 20, 2024@TBTB200010300.000.50
BOSMay 18, 2024@STLSTL1010501036.005.00
BOSMay 16, 2024TBTB100000300.000.00
BOSMay 14, 2024TBTB1.100030206.752.25
BOSMay 11, 2024WSHWSH0.200000010.001.50
BOSMay 7, 2024@ATLATL1010201118.003.00
BOSMay 4, 2024@MINMIN1.200030105.401.80
BOSApril 30, 2024SFSF100020100.002.00
BOSApril 27, 2024CHCCHC210000200.000.00
BOSApril 21, 2024@PITPIT210020210.001.50
BOSApril 18, 2024CLECLE200010100.000.50
BOSApril 14, 2024LAALAA2.200020103.380.75
BOSApril 11, 2024BALBAL200000110.000.50
BOSApril 6, 2024@LAALAA200000500.000.00
BOSApril 3, 2024@ATHATH1.100000000.000.00
BOSMarch 31, 2024@SEASEA2.100100100.000.00
BOSMarch 30, 2024@SEASEA00001000——
By season3 seasons
SeasonGGSIPWLSVERAWHIPHHRKBB
2026BOS360292404.971.48354398
2025BOS360342434.241.092732510
2024BOS44055.16222.931.01474589

About MLB Research

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Every number the site holds for a Major League team and the players who played for it, in one place. Pick a club, a season and a set of games, and read it. Nothing here needs an account.

Where the numbers come from

The same tables the boards read, resolved through one shared definition per stat. A rate is computed over the whole window rather than averaged across games, so a season figure is not the mean of the nightly ones.