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Sunday, 04/20/2025 7:10 PM 
 RecordStarterOpenLatest
 Gm#W-LPitcherMLO/UMLO/URL
 SD San Diego92915-6CEASE(R)+1007.5o-20+1057.5ev+1.5, -200
 HOU Houston93010-10VALDEZ(L)-1107.5ev-1157.5u-20-1.5, +170

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Tip SheetSimulation & Ratings🔒Betting Systems🔒Team Trends🔒Team StatsStarting PitchersLineupsBullpensSchedule & ResultsManagers🔒Umpire🔒Head-to-Head🔒

Team Bullpen Breakdown

Explore comprehensive MLB bullpen rosters featuring standard and Sabermetric pitching stats, plus updated injury reports to evaluate each team's relief pitching depth.

Pitcher Injuries

Stay updated with each MLB team's key impact player injury details. Find statuses, injury types, and game effect for a competitive edge in baseball insights.

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 San Diego Padres
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Luis Arraez2B✅NeckQuestionable04/20/20258792530372.287.330.425.755
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Jake Cronenworth2B Ribs10-day IL04/20/2025357920250.257.409.486.895
Jake Cronenworth (2B, Padres) is on the 10-day IL with a non-displaced rib fracture, timeline for return unknown.
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Jackson MerrillCF Hamstring10-day IL04/20/202537714203101.378.415.6761.090
Jackson Merrill (CF, Padres) is on the 10-day IL with a right hamstring strain, out indefinitely. Next game: 04/20/2025.
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Forrest WallCF Undisclosed7-day IL04/20/202500000000.000.000.000.000
Forrest Wall (CF) is on the 7-day IL for the Padres; next game is 04/20/2025 at Houston. Status: Unknown. Info updated on 04/20/2025.
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Kale Fountain3B ElbowOut04/20/202500000000.000.000.000.000
Kale Fountain (3B, Padres) will miss today's game due to an elbow injury. Next game is 04/20/2025 at Houston.
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Kavares TearsCF HamstringOut04/20/202500000000.000.000.000.000
Kavares Tears (CF, Padres) will miss today’s game due to a hamstring injury; next game on 04/20/2025 at Houston.
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Jason HeywardRF Knee10-day IL04/20/2025424810160.190.255.286.541
Jason Heyward (RF, Padres) is on the 10-day IL with left knee inflammation and will miss games until late April.
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Albert Fabian3B Undisclosed60-day IL04/20/202500000000.000.000.000.000
Albert Fabian (3B, Padres) on 60-day IL, status unknown. Next game: 04/20/2025 vs. Houston. Info updated 04/20/2025.
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Brandon LockridgeRF Hamstring10-day IL04/20/2025313620013.194.265.258.523
Brandon Lockridge of the Padres is on the 10-day IL with a left hamstring strain and has no recovery timetable.
 Houston Astros
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Taylor TrammellLF Calf10-day IL04/20/202500000000.000.000.000.000
Houston Astros' Taylor Trammell (LF) on 10-day IL with a right calf strain; no return timetable set. Next game: 04/20/2025.
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Camilo DiazSS Undisclosed60-day IL04/20/202500000000.000.000.000.000
Camilo Diaz (SS, Astros) on 60-day IL; status unknown. Next game: 04/20/2025 vs. San Diego. Info updated 04/20/2025.
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Pedro LeonCF Knee10-day IL04/20/202500000000.000.000.000.000
Pedro Leon (CF, Astros) is on the 10-day IL with a Grade 1 left MCL strain and has no timetable for recovery.
PlayerPosInjuryStatusUpdatedABRH2B3BHRRBISBAVGOBPSLGOPS
Nehomar OchoaCF Undisclosed7-day IL04/20/202500000000.000.000.000.000
Nehomar Ochoa (CF) of the Houston Astros is on the 7-day IL with an unknown issue; next game is 04/20/2025 vs. San Diego.

Bullpen Pitching Stats

2025 Pitching Stats in All Games

This table displays pitching statistics for a team's bullpen, highlighting the expected available pitchers for today's game. Key stats such as ERA, WHIP, saves, and opponents' batting averages are included to help bettors and fantasy managers evaluate bullpen strength. Pitchers highlighted in white rows are projected to be available for relief appearances, while players shown in grey rows are currently unavailable or listed as starting pitchers. Favorable and unfavorable performance indicators are clearly marked in green and red, respectively, allowing for quick identification of bullpen advantages or vulnerabilities.

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 San Diego Bullpen - 2025 All Games Pitching Statistics
Player
T
 W L ERA G HLD SV BSV SV% IP H R ER HR BB IBB HBP SO WP BK WHIP AVGa OBPa SLGa OPSa
Robert Suarez
R
 0 0 0.00 9 0 8 0 100.0% 9.0 3 0 0 0 2 0 0 10 0 0 0.556 0.100 0.156 0.133 0.290
Jason Adam
R
 2 0 0.87 10 7 0 0 0.0% 10.3 5 1 1 0 5 0 1 15 0 0 0.968 0.152 0.282 0.182 0.464
Jeremiah Estrada
R
 0 1 1.54 11 5 0 0 0.0% 11.7 4 2 2 1 4 0 0 14 1 0 0.686 0.103 0.186 0.179 0.366
Adrian Morejon
L
 1 0 0.87 10 2 1 1 50.0% 10.3 7 1 1 0 3 0 0 7 2 0 0.968 0.200 0.263 0.229 0.492
Wandy Peralta
L
 2 0 1.08 9 2 0 0 0.0% 8.3 4 1 1 1 2 0 0 6 0 0 0.720 0.133 0.188 0.267 0.454
Yuki Matsui
L
 0 1 2.25 8 0 0 0 0.0% 8.0 5 3 2 1 3 0 0 15 1 0 1.000 0.167 0.242 0.367 0.609
Alek Jacob
R
 0 0 2.45 9 1 0 0 0.0% 11.0 11 3 3 2 3 0 2 6 0 0 1.273 0.262 0.340 0.429 0.769
Logan Gillaspie
R
 0 0 4.50 1 0 0 0 0.0% 4.0 3 2 2 1 2 0 0 1 0 2 1.250 0.214 0.313 0.429 0.741
Bryan Hoeing
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Sean Reynolds
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Jhony Brito
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Luis Patino
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Michael King
R
 3 0 2.57 5 0 0 0 0.0% 28.0 20 8 8 3 10 0 1 31 2 0 1.071 0.194 0.272 0.311 0.583
Nick Pivetta
R
 3 1 1.57 4 0 0 0 0.0% 23.0 14 4 4 1 5 0 0 24 0 0 0.826 0.175 0.224 0.250 0.474
Kyle Hart
L
 2 1 6.48 4 0 0 0 0.0% 16.7 18 12 12 4 5 0 0 10 0 0 1.380 0.277 0.329 0.538 0.867
Randy Vasquez
R
 1 1 1.74 4 0 0 0 0.0% 20.7 14 5 4 0 14 0 0 8 0 1 1.355 0.197 0.329 0.225 0.555
Yu Darvish
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Matt Waldron
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Joe Musgrove
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000

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 Houston Bullpen - 2025 All Games Pitching Statistics
Player
T
 W L ERA G HLD SV BSV SV% IP H R ER HR BB IBB HBP SO WP BK WHIP AVGa OBPa SLGa OPSa
Josh Hader
L
 1 0 0.82 9 0 6 0 100.0% 11.0 5 1 1 0 2 0 0 13 0 0 0.636 0.135 0.179 0.162 0.342
Bryan Abreu
R
 0 1 2.79 10 7 0 2 0.0% 9.7 9 3 3 0 7 0 0 13 1 0 1.655 0.225 0.340 0.275 0.615
Tayler Scott
R
 1 1 4.91 8 1 0 1 0.0% 7.3 8 5 4 0 5 0 1 7 0 0 1.773 0.276 0.400 0.379 0.779
Bryan King
L
 0 0 1.93 10 5 0 0 0.0% 9.3 4 2 2 1 3 0 1 13 0 0 0.750 0.121 0.216 0.242 0.459
Ryan Gusto
R
 2 1 3.18 6 0 0 0 0.0% 17.0 18 6 6 2 3 0 0 17 0 0 1.235 0.273 0.304 0.409 0.713
Kaleb Ort
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Shawn Dubin
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Steven Okert
L
 0 0 0.90 8 2 1 0 100.0% 10.0 4 1 1 1 0 0 1 14 0 0 0.400 0.118 0.143 0.265 0.408
Forrest Whitley
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Bennett Sousa
L
 0 0 0.00 4 0 0 0 0.0% 3.7 2 0 0 0 2 0 0 5 0 0 1.091 0.167 0.286 0.250 0.536
Nick Hernandez
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Logan VanWey
R
 0 0 2.70 3 0 0 0 0.0% 3.3 5 2 1 1 0 0 1 1 0 0 1.500 0.333 0.375 0.600 0.975
Hunter Brown
R
 2 1 1.50 4 0 0 0 0.0% 24.0 15 5 4 1 5 0 0 22 0 0 0.833 0.183 0.230 0.293 0.523
Spencer Arrighetti
R
 1 1 5.59 2 0 0 0 0.0% 9.7 4 6 6 1 5 0 1 8 0 0 0.931 0.121 0.256 0.273 0.529
Ronel Blanco
R
 1 2 6.48 4 0 0 0 0.0% 16.7 17 12 12 2 10 0 0 17 0 0 1.620 0.266 0.365 0.406 0.771
Hayden Wesneski
R
 1 1 3.91 4 0 0 0 0.0% 23.0 16 10 10 6 4 0 1 25 0 0 0.870 0.188 0.233 0.435 0.669
Luis Garcia
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Lance McCullers
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
Cristian Javier
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000
J.P. France
R
 0 0 0.00 0 0 0 0 0.0% 0.0 0 0 0 0 0 0 0 0 0 0 0.000 0.000 0.000 0.000 0.000

2025 Advanced Pitching Stats in All Games

This table provides advanced pitching and Sabermetric statistics for the team's bullpen pitchers, highlighting expected availability for today's game. Metrics include ERA and advanced ERA estimators (xERA, FIP, SIERA), strikeout and walk rates, and performance with inherited runners, helping bettors and fantasy managers assess bullpen effectiveness. Pitchers in white rows are projected available for relief, while those in grey rows are either unavailable or designated as starters. Favorable (green) and unfavorable (red) performances are clearly marked for quick reference.

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 San Diego Bullpen - 2025 All Games Advanced Pitching Statistics
  ERA Estimates Percentages and Ratios Inherited Runners
Player
T
 ERA xERA ERC FIP dERA DICE SIERA HR% Str% BB% BB9 SO% SO9 SOBB PFR LOB% GOFO IR IRA IRA%
Robert Suarez
R
 0.00 -0.64 0.50 1.54 1.56 1.54 1.53 0.0% 69.6% 6.3% 2.0 31.3% 10.0 5.00 1.33 100.0% 1.17 0 0 0.0%
Jason Adam
R
 0.87 0.76 1.52 1.94 1.99 1.94 1.92 0.0% 60.8% 11.9% 4.4 35.7% 13.1 3.00 1.94 90.9% 1.50 2 0 0.0%
Jeremiah Estrada
R
 1.54 0.43 0.95 2.84 2.79 2.84 2.79 2.3% 68.9% 9.3% 3.1 32.6% 10.8 3.50 1.54 90.9% 0.63 1 0 0.0%
Adrian Morejon
L
 0.87 1.35 1.47 2.62 2.81 2.62 2.66 0.0% 62.3% 7.3% 2.6 17.1% 6.1 2.33 0.97 90.0% 2.50 4 1 25.0%
Wandy Peralta
L
 1.08 1.21 1.19 3.94 3.98 3.94 4.02 3.1% 70.5% 6.5% 2.2 19.4% 6.5 3.00 0.96 108.7% 16.00 2 0 0.0%
Yuki Matsui
L
 2.25 2.24 1.93 2.10 2.16 2.10 2.10 3.0% 64.8% 9.4% 3.4 46.9% 16.9 5.00 2.25 75.8% 0.50 6 2 33.3%
Alek Jacob
R
 2.45 4.52 4.88 5.74 5.67 5.74 5.69 4.3% 67.5% 6.1% 2.5 12.2% 4.9 2.00 0.82 98.5% 0.78 5 1 20.0%
Logan Gillaspie
R
 4.50 4.40 4.18 7.35 7.92 7.35 7.42 6.3% 63.5% 11.8% 4.5 5.9% 2.3 0.50 0.75 83.3% 3.00 3 2 66.7%
Bryan Hoeing
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Sean Reynolds
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Jhony Brito
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Luis Patino
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Michael King
R
 2.57 2.57 2.49 3.46 3.40 3.46 3.45 2.6% 60.9% 8.7% 3.2 27.0% 10.0 3.10 1.46 85.8% 1.17 0 0 0.0%
Nick Pivetta
R
 1.57 1.14 1.33 2.23 2.25 2.23 2.21 1.2% 65.9% 5.7% 2.0 27.3% 9.4 4.80 1.26 85.2% 2.25 0 0 0.0%
Kyle Hart
L
 6.48 5.49 5.08 5.92 5.79 5.92 5.89 5.7% 63.6% 6.8% 2.7 13.7% 5.4 2.00 0.90 63.2% 0.63 0 0 0.0%
Randy Vasquez
R
 1.74 2.35 2.60 4.36 4.70 4.36 4.35 0.0% 56.8% 15.6% 6.1 8.9% 3.5 0.57 1.06 82.1% 1.19 0 0 0.0%
Yu Darvish
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Matt Waldron
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Joe Musgrove
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%

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 Houston Bullpen - 2025 All Games Advanced Pitching Statistics
  ERA Estimates Percentages and Ratios Inherited Runners
Player
T
 ERA xERA ERC FIP dERA DICE SIERA HR% Str% BB% BB9 SO% SO9 SOBB PFR LOB% GOFO IR IRA IRA%
Josh Hader
L
 0.82 -0.13 0.70 1.28 1.39 1.28 1.21 0.0% 72.7% 5.0% 1.6 32.5% 10.6 6.50 1.36 85.7% 0.83 0 0 0.0%
Bryan Abreu
R
 2.79 3.69 3.68 2.58 2.77 2.58 2.58 0.0% 58.0% 15.6% 6.5 28.9% 12.1 1.86 2.07 81.3% 11.00 4 2 50.0%
Tayler Scott
R
 4.91 4.45 5.06 3.65 3.70 3.65 3.67 0.0% 59.3% 13.9% 6.1 19.4% 8.6 1.40 1.64 64.3% 2.00 2 1 50.0%
Bryan King
L
 1.93 0.98 1.38 2.99 2.94 2.99 2.96 2.7% 66.2% 8.3% 2.9 36.1% 12.5 4.33 1.71 90.9% 2.33 3 0 0.0%
Ryan Gusto
R
 3.18 4.00 3.70 3.16 3.10 3.16 3.16 2.9% 72.1% 4.2% 1.6 23.6% 9.0 5.67 1.18 82.4% 0.65 0 0 0.0%
Kaleb Ort
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Shawn Dubin
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Steven Okert
L
 0.90 -0.04 0.71 1.90 1.81 1.90 1.85 2.9% 67.9% 0.0% 0.0 40.0% 12.6 0.00 1.40 111.1% 0.33 6 3 50.0%
Forrest Whitley
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Bennett Sousa
L
 0.00 1.24 1.56 2.01 2.17 2.01 2.29 0.0% 59.3% 13.3% 4.9 33.3% 12.3 2.50 1.91 100.0% 5.00 2 1 50.0%
Nick Hernandez
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Logan VanWey
R
 2.70 7.44 8.05 7.30 6.71 7.30 7.16 6.3% 65.4% 0.0% 0.0 6.3% 2.7 0.00 0.30 87.0% 4.00 0 0 0.0%
Hunter Brown
R
 1.50 1.20 1.39 2.43 2.44 2.43 2.45 1.1% 64.4% 5.4% 1.9 23.9% 8.3 4.40 1.13 80.6% 2.64 0 0 0.0%
Spencer Arrighetti
R
 5.59 1.42 1.75 4.65 4.74 4.65 4.62 2.6% 59.2% 12.8% 4.7 20.5% 7.4 1.60 1.34 46.5% 0.88 0 0 0.0%
Ronel Blanco
R
 6.48 4.88 4.93 4.42 4.30 4.42 4.40 2.7% 62.0% 13.0% 5.4 22.1% 9.2 1.70 1.62 62.0% 0.92 0 0 0.0%
Hayden Wesneski
R
 3.91 3.32 2.63 4.97 4.72 4.97 4.96 6.7% 66.1% 4.4% 1.6 27.8% 9.8 6.25 1.26 87.3% 1.38 0 0 0.0%
Luis Garcia
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Lance McCullers
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Cristian Javier
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
J.P. France
R
 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 0.0% 0.0% 0.0 0.0% 0.0 0.00 0.00 0.0% 0.00 0 0 0.0%
Glossary of Terms

Player: The name of the bullpen pitcher.

T: The throwing hand of the pitcher (L for left-handed, R for right-handed).

W: The total number of wins credited to the pitcher.

L: The total number of losses credited to the pitcher.

ERA (Earned Run Average): The average number of earned runs allowed per nine innings pitched.

G (Games Played): The number of games in which the pitcher has appeared.

HLD (Holds): The number of times a relief pitcher maintains a lead before passing the game to another reliever.

SV (Saves): The number of times a pitcher successfully finishes a game with a lead.

BSV (Blown Saves): The number of times a pitcher enters in a save situation and fails to maintain the lead.

SV% (Save Percentage): The percentage of save opportunities successfully converted.

IP (Innings Pitched): The total number of innings pitched by the player.

H (Hits Allowed): The total number of hits allowed by the pitcher.

R (Runs Allowed): The total number of runs allowed, including earned and unearned runs.

ER (Earned Runs): The total number of runs scored against the pitcher that were not the result of defensive errors.

HR (Home Runs Allowed): The total number of home runs given up by the pitcher.

BB (Walks): The total number of batters walked by the pitcher.

IBB (Intentional Walks): The number of walks that were intentionally issued.

HBP (Hit by Pitch): The number of batters hit by a pitch.

SO (Strikeouts): The number of batters struck out by the pitcher.

WP (Wild Pitches): The number of pitches that the catcher fails to catch, allowing runners to advance.

BK (Balks): The number of illegal pitching movements that allow runners to advance.

WHIP (Walks + Hits per Inning Pitched): The average number of walks and hits allowed per inning pitched.

AVGa (Opponent Batting Average): The batting average of opposing hitters against the pitcher.

OBPa (Opponent On-Base Percentage): The on-base percentage of opposing hitters against the pitcher.

SLGa (Opponent Slugging Percentage): The slugging percentage of opposing hitters against the pitcher.

OPSa (Opponent On-Base Plus Slugging): The on-base plus slugging percentage of opposing hitters against the pitcher.

ERA (Earned Run Average): The average number of earned runs a pitcher allows per nine innings.

xERA (Expected ERA): A predictive measure of ERA based on batted-ball data, strikeouts, and walks.

ERC (Component ERA): An estimate of ERA based on hits, walks, and home runs allowed.

FIP (Fielding Independent Pitching): A metric that evaluates a pitcher's effectiveness independent of fielding by focusing on strikeouts, walks, and home runs allowed.

dERA (Defense-Independent ERA): An alternative ERA metric that removes the effect of defense and focuses on pitching outcomes.

DICE (Defense-Independent Component ERA): A similar stat to FIP that adjusts for defense-independent outcomes.

SIERA (Skill-Interactive ERA): A sabermetric pitching stat that evaluates a pitcher's overall skill by considering how batted balls are put in play.

Pitching Ratios & Percentages

Str% (Strike Percentage): The percentage of total pitches thrown for strikes.

BB% (Walk Percentage): The percentage of batters faced who are walked.

BB9 (Walks per 9 Innings): The average number of walks allowed per nine innings.

SO% (Strikeout Percentage): The percentage of batters faced who are struck out.

SO9 (Strikeouts per 9 Innings): The average number of strikeouts per nine innings.

SO/BB (Strikeout-to-Walk Ratio): The ratio of strikeouts to walks, indicating control and command.

PFR (Power-Finesse Ratio): A measure of a pitcher’s ability to generate strikeouts while limiting walks.

LOB% (Left on Base Percentage): The percentage of baserunners left stranded by a pitcher.

GO/FO (Ground Out to Fly Out Ratio): A measure of a pitcher's tendency to induce ground balls compared to fly balls.

Pitching Performance Indicators

Dom (Dominant Starts): The number of starts classified as dominant based on low runs allowed and high strikeout rates.

Dom% (Dominant Start Percentage): The percentage of total starts that were dominant performances.

Dis (Disaster Starts): The number of starts where the pitcher performed poorly, allowing a high number of runs.

Dis% (Disaster Start Percentage): The percentage of total starts that were considered disasters.

Inherited Runners

IR (Inherited Runners): The number of runners already on base when the pitcher enters the game.

IRA (Inherited Runners Allowed): The number of inherited runners that the pitcher allows to score.

IRA% (Inherited Runner Scoring Percentage): The percentage of inherited runners that end up scoring.