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Saturday, 07/05/2025 10:10 PM 
 RecordStarterOpenLatest
 Gm#W-LPitcherMLO/UMLO/URL
 PIT Pittsburgh92939-52BURROWS(R)+1757.5o-10+1457o-25+1.5, -150
 SEA Seattle93048-42CASTILLO(R)-1857.5u-10-1557u+05-1.5, +130

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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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 Pittsburgh Pirates
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Ryan BoruckiP Back15-day IL07/05/202513025.7211715311225.261.247
Ryan Borucki (P, Pirates) is on the 15-day IL with a left oblique strain; his return date is currently uncertain.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Cristofer MelendezP Undisclosed60-day IL07/05/20250000.00000000.000.000
Cristofer Melendez (P) of the Pittsburgh Pirates is on the 60-day IL; status unknown. Next game: 07/05/2025 vs. Seattle.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Anthony SolometoSP Shoulder60-day IL07/05/20250000.00000000.000.000
Anthony Solometo of the Pittsburgh Pirates is on the 60-day injured list due to a shoulder issue, next game on 07/05/2025 at Seattle.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Garrett McMillanSP Undisclosed7-day IL07/05/20250000.00000000.000.000
Garrett McMillan (SP, Pirates) on 7-day IL with an unknown injury; next game scheduled for 07/05/2025 at Seattle.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Derek DiamondSP Undisclosed7-day IL07/05/20250000.00000000.000.000
Derek Diamond (SP, Pirates) on 7-day IL, status unknown. Next game on 07/05/2025 at Seattle. Info as of 07/05/2025.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Andres SilveraP Undisclosed60-day IL07/05/20250000.00000000.000.000
Andres Silvera (P) of the Pittsburgh Pirates is on the 60-day IL; next game is 07/05/2025 at Seattle. Updates as of 07/05/2025.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Magdiel CottoP Undisclosed60-day IL07/05/20250000.00000000.000.000
Magdiel Cotto of the Pittsburgh Pirates is on the 60-day IL with an unknown issue. Next game is on 07/05/2025 at Seattle.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Owen KellingtonP Undisclosed60-day IL07/05/20250000.00000000.000.000
Owen Kellington (P) on 60-day IL for Pittsburgh Pirates; no return date yet. Next game on 07/05/2025 at Seattle.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Jared JonesP ElbowOut05/21/20250000.00000000.000.000
Jared Jones (P, Pirates) placed on 60-day IL with elbow injury, expected to miss the rest of the season. Next game: 7/5/25.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Colin HoldermanP Thumb15-day IL05/21/202501015.0201515311119.002.067
Colin Holderman of the Pittsburgh Pirates is on the 15-day IL with a thumb injury, status uncertain for return.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Johan OviedoP Elbow60-day IL05/04/20250000.00000000.000.000
Johan Oviedo of the Pirates has been placed on the 60-day IL with a right elbow and lat injury, sidelined indefinitely.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Justin LawrenceP Elbow60-day IL05/04/202510011.351106150.790.971
Justin Lawrence (P) of the Pittsburgh Pirates is on the 60-day IL due to elbow inflammation and is out indefinitely.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Dauri MoretaP Elbow05/04/20250000.00000000.000.000
Dauri Moreta (P), Pittsburgh Pirates, on 60-day IL due to elbow injury; next game on 07/05/2025 vs. Seattle.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Tim MayzaP Shoulder60-day IL05/04/20250009.39331182.891.071
Tim Mayza (P, Pirates) is on the 60-day IL with a shoulder injury, out indefinitely; no return timetable set.
 Seattle Mariners
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Cole PhillipsSP Elbow60-day IL07/05/20250000.00000000.000.000
Cole Phillips (SP, Seattle Mariners) on 60-day IL with elbow injury, next game scheduled for 07/05/2025 against Pittsburgh.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Hunter CrantonSP Concussion7-day IL07/05/20250000.00000000.000.000
Hunter Cranton (SP, Mariners) is on the 7-day IL due to a concussion. Next game: 07/05/2025 vs. Pittsburgh.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Tyler GoughSP Elbow60-day IL07/05/20250000.00000000.000.000
Tyler Gough of the Seattle Mariners is on the 60-day IL due to an elbow injury, with the next game on 07/05/2025 vs. Pittsburgh.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Gregory SantosP Knee60-day IL07/05/20251107.08640805.142.286
Gregory Santos of the Seattle Mariners is on the 60-day IL with knee inflammation, out indefinitely. No recovery timetable yet.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Matt CroninSP Undisclosed7-day IL07/05/20250000.00000000.000.000
Matt Cronin (SP, Mariners) is on the 7-day IL with an unknown injury. Next game: 07/05/2025 vs. Pittsburgh.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Bryce MillerP Elbow15-day IL06/10/202525048.7513131523395.731.521
Bryce Miller (P, Mariners) is on the 15-day IL with right elbow inflammation; return date TBD. Next game: 07/05/2025 vs. Pittsburgh.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Collin SniderP Forearm15-day IL06/05/202521026.332201636245.471.443
Collin Snider (P, Mariners) is on the 15-day IL with a right forearm flexor strain, expected to return in early July.

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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 Pittsburgh 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
Dennis Santana
R
 2 1 1.42 38 10 5 1 83.3% 38.0 22 7 6 1 7 0 0 28 0 0 0.763 0.168 0.210 0.244 0.454
Caleb Ferguson
L
 2 1 2.79 39 9 0 3 0.0% 38.7 27 12 12 0 14 2 5 30 0 0 1.060 0.201 0.301 0.246 0.547
Ryan Borucki
L
 1 3 5.26 29 6 0 3 0.0% 25.7 21 17 15 3 11 1 1 22 2 1 1.247 0.228 0.317 0.413 0.730
David Bednar
R
 2 5 2.73 33 3 12 0 100.0% 29.7 25 11 9 2 9 2 1 42 3 0 1.146 0.227 0.292 0.345 0.637
Chase Shugart
R
 4 3 2.97 31 4 0 2 0.0% 36.3 26 13 12 4 15 2 1 21 2 0 1.128 0.202 0.290 0.341 0.631
Braxton Ashcraft
R
 2 0 2.29 10 2 0 0 0.0% 19.7 19 5 5 1 6 1 0 16 0 0 1.271 0.250 0.305 0.382 0.686
Colin Holderman
R
 0 1 9.00 14 2 0 2 0.0% 15.0 20 15 15 3 11 0 2 11 3 0 2.067 0.345 0.465 0.569 1.034
Justin Lawrence
R
 1 0 0.79 11 3 0 1 0.0% 11.3 5 1 1 0 6 1 2 15 1 0 0.971 0.139 0.295 0.222 0.518
Tim Mayza
L
 0 0 2.89 7 0 0 0 0.0% 9.3 9 3 3 1 1 0 1 8 0 0 1.071 0.243 0.282 0.432 0.714
Genesis Cabrera
L
 0 0 5.59 17 1 0 0 0.0% 19.3 18 12 12 5 6 0 1 17 0 0 1.241 0.247 0.313 0.493 0.806
Carmen Mlodzinski
R
 2 5 5.08 14 0 0 0 0.0% 51.3 66 31 29 7 16 0 2 36 0 0 1.597 0.307 0.361 0.484 0.844
Isaac Mattson
R
 2 0 1.50 14 2 0 1 0.0% 18.0 7 3 3 2 6 0 0 20 0 0 0.722 0.117 0.197 0.250 0.447
Kyle Nicolas
R
 0 0 7.50 10 0 0 0 0.0% 12.0 13 10 10 2 9 0 0 8 0 0 1.833 0.260 0.373 0.460 0.833
Dauri Moreta
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
Paul Skenes
R
 4 7 2.03 18 0 0 0 0.0% 111.0 72 28 25 5 30 0 3 115 2 0 0.919 0.182 0.245 0.278 0.523
Mitch Keller
R
 3 10 3.64 18 0 0 0 0.0% 106.3 101 47 43 7 26 0 5 84 2 0 1.194 0.245 0.297 0.358 0.656
Bailey Falter
L
 6 4 3.69 18 0 0 0 0.0% 92.7 77 44 38 12 32 0 1 56 3 0 1.176 0.231 0.300 0.392 0.692
Andrew Heaney
L
 4 7 4.16 17 0 0 0 0.0% 93.0 81 43 43 14 31 0 3 71 2 0 1.204 0.235 0.303 0.426 0.730
Johan Oviedo
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
Jared Jones
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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 Seattle 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
Andres Munoz
R
 3 1 1.09 34 0 20 5 80.0% 33.0 15 8 4 1 13 3 2 44 4 0 0.848 0.136 0.240 0.164 0.404
Gabe Speier
L
 2 0 2.73 38 8 0 3 0.0% 33.0 25 10 10 3 7 0 2 48 1 0 0.970 0.203 0.258 0.341 0.599
Matt Brash
R
 0 0 0.47 21 9 1 0 100.0% 19.3 13 1 1 0 7 0 2 20 0 0 1.034 0.191 0.286 0.191 0.477
Carlos Vargas
R
 3 5 3.16 40 10 1 5 16.7% 42.7 42 19 15 5 19 4 1 32 1 0 1.430 0.258 0.339 0.380 0.719
Casey Legumina
R
 4 4 3.78 32 3 0 0 0.0% 33.3 24 17 14 3 18 2 1 35 0 0 1.260 0.202 0.312 0.311 0.623
Trent Thornton
R
 2 0 4.99 26 5 0 1 0.0% 30.7 27 18 17 6 13 2 4 21 1 0 1.304 0.239 0.338 0.425 0.763
Eduard Bazardo
R
 3 0 2.72 40 1 0 1 0.0% 46.3 31 14 14 5 19 1 1 42 1 0 1.079 0.190 0.279 0.307 0.585
Juan Burgos
R
 0 0 4.50 1 0 0 0 0.0% 2.0 2 1 1 0 1 0 0 2 0 0 1.500 0.250 0.333 0.375 0.708
Logan Evans
R
 3 2 3.94 8 0 0 0 0.0% 45.7 45 20 20 7 13 0 2 33 2 0 1.270 0.260 0.319 0.445 0.764
Logan Gilbert
R
 2 2 3.40 10 0 0 0 0.0% 50.3 37 19 19 8 11 0 2 74 3 0 0.954 0.198 0.250 0.374 0.624
Bryan Woo
R
 8 4 2.60 17 0 0 0 0.0% 107.3 83 35 31 14 19 0 3 104 2 0 0.950 0.209 0.251 0.348 0.598
George Kirby
R
 2 4 4.85 8 0 0 0 0.0% 42.7 41 23 23 7 9 0 2 41 1 0 1.172 0.253 0.301 0.426 0.727
Bryce Miller
R
 2 5 5.73 10 0 0 0 0.0% 48.7 51 31 31 5 23 0 3 39 2 0 1.521 0.273 0.362 0.433 0.795

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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 Pittsburgh 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%
Dennis Santana
R
 1.42 0.91 1.11 2.52 2.59 2.52 2.53 0.7% 70.9% 4.9% 1.7 19.6% 6.6 4.00 0.92 79.7% 1.22 13 3 23.1%
Caleb Ferguson
L
 2.79 1.75 2.04 3.02 3.20 3.02 2.87 0.0% 64.2% 8.6% 3.3 18.5% 7.0 2.14 1.14 73.9% 2.50 17 5 29.4%
Ryan Borucki
L
 5.26 3.52 3.51 4.31 4.35 4.31 4.20 2.9% 62.5% 10.0% 3.9 20.0% 7.7 2.00 1.29 55.6% 6.20 13 4 30.8%
David Bednar
R
 2.73 2.86 2.71 2.16 2.23 2.16 1.95 1.7% 66.0% 7.3% 2.7 33.9% 12.7 4.67 1.72 74.5% 1.19 0 0 0.0%
Chase Shugart
R
 2.97 2.91 2.74 4.70 4.81 4.70 4.52 2.8% 60.4% 9.9% 3.7 13.9% 5.2 1.40 0.99 79.7% 1.35 22 3 13.6%
Braxton Ashcraft
R
 2.29 3.42 3.13 3.05 3.13 3.05 2.92 1.2% 67.5% 7.1% 2.7 19.0% 7.3 2.67 1.12 84.7% 2.08 3 0 0.0%
Colin Holderman
R
 9.00 7.66 9.03 6.83 6.51 6.83 6.87 4.2% 64.5% 14.1% 6.6 14.1% 6.6 1.00 1.47 62.5% 5.25 13 5 38.5%
Justin Lawrence
R
 0.79 0.79 1.67 2.57 2.66 2.57 2.32 0.0% 57.6% 12.8% 4.8 31.9% 11.9 2.50 1.85 92.3% 5.00 2 1 50.0%
Tim Mayza
L
 2.89 3.38 3.01 3.42 3.41 3.42 3.44 2.6% 67.9% 2.6% 1.0 20.5% 7.7 8.00 0.96 83.3% 3.00 8 2 25.0%
Genesis Cabrera
L
 5.59 5.00 4.63 5.79 5.63 5.79 5.77 6.3% 63.2% 7.2% 2.8 20.5% 7.9 2.83 1.19 72.2% 1.00 7 2 28.6%
Carmen Mlodzinski
R
 5.08 5.82 5.72 4.52 4.37 4.52 4.52 3.0% 63.4% 6.7% 2.8 15.1% 6.3 2.25 1.01 71.4% 2.08 2 0 0.0%
Isaac Mattson
R
 1.50 0.98 1.15 3.32 3.27 3.32 3.28 3.0% 67.6% 9.0% 3.0 29.9% 10.0 3.33 1.44 98.0% 0.90 10 0 0.0%
Kyle Nicolas
R
 7.50 6.14 5.95 6.18 5.86 6.18 6.18 3.4% 60.4% 15.5% 6.8 13.8% 6.0 0.89 1.42 62.5% 1.75 7 3 42.9%
Dauri Moreta
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%
Paul Skenes
R
 2.03 1.62 1.61 2.51 2.54 2.51 2.51 1.2% 64.5% 6.8% 2.4 26.3% 9.3 3.83 1.31 78.6% 2.07 0 0 0.0%
Mitch Keller
R
 3.64 3.31 3.07 3.25 3.28 3.25 3.25 1.6% 67.0% 5.8% 2.2 18.6% 7.1 3.23 1.03 69.6% 1.74 0 0 0.0%
Bailey Falter
L
 3.69 3.50 3.18 4.64 4.73 4.64 4.64 3.3% 63.5% 8.2% 3.1 14.4% 5.4 1.75 0.95 70.8% 1.31 0 0 0.0%
Andrew Heaney
L
 4.16 3.84 3.51 4.63 4.60 4.63 4.63 3.7% 64.1% 7.9% 3.0 18.0% 6.9 2.29 1.10 75.5% 1.60 0 0 0.0%
Johan Oviedo
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%
Jared Jones
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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 Seattle 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%
Andres Munoz
R
 1.09 0.77 1.23 2.19 2.26 2.19 1.93 0.8% 64.2% 10.1% 3.5 34.1% 12.0 3.38 1.73 76.9% 2.07 4 0 0.0%
Gabe Speier
L
 2.73 2.38 2.08 2.19 2.23 2.19 2.19 2.3% 70.8% 5.3% 1.9 36.1% 13.1 6.86 1.67 80.5% 1.29 17 3 17.6%
Matt Brash
R
 0.47 1.59 1.85 2.43 2.52 2.43 2.44 0.0% 60.3% 8.7% 3.3 25.0% 9.3 2.86 1.40 95.5% 4.60 2 0 0.0%
Carlos Vargas
R
 3.16 4.43 4.25 4.53 4.51 4.53 4.25 2.7% 63.5% 10.0% 4.0 16.8% 6.8 1.68 1.20 78.2% 2.04 9 5 55.6%
Casey Legumina
R
 3.78 3.04 3.09 3.88 3.89 3.88 3.70 2.2% 65.9% 12.6% 4.9 24.5% 9.5 1.94 1.59 67.0% 1.59 5 1 20.0%
Trent Thornton
R
 4.99 4.51 4.61 5.94 5.87 5.94 5.74 4.6% 65.4% 9.6% 3.8 15.4% 6.2 1.62 1.11 73.0% 1.52 10 1 10.0%
Eduard Bazardo
R
 2.72 2.62 2.52 3.98 3.98 3.98 3.91 2.7% 63.7% 10.0% 3.7 22.1% 8.2 2.21 1.32 84.1% 0.94 12 1 8.3%
Juan Burgos
R
 4.50 3.63 3.50 2.60 2.78 2.60 2.23 0.0% 62.1% 11.1% 4.5 22.2% 9.0 2.00 1.50 66.7% 0.00 0 0 0.0%
Logan Evans
R
 3.94 4.34 4.08 4.63 4.54 4.63 4.63 3.7% 62.8% 6.6% 2.6 16.8% 6.5 2.54 1.01 79.7% 1.77 0 0 0.0%
Logan Gilbert
R
 3.40 2.86 2.42 3.00 2.87 3.00 3.00 4.0% 66.8% 5.5% 2.0 36.8% 13.2 6.73 1.69 79.9% 1.81 0 0 0.0%
Bryan Woo
R
 2.60 2.75 2.30 3.47 3.39 3.47 3.47 3.3% 67.3% 4.4% 1.6 24.4% 8.7 5.47 1.15 82.0% 1.48 0 0 0.0%
George Kirby
R
 4.85 4.10 3.71 4.08 3.93 4.08 4.09 4.0% 67.7% 5.0% 1.9 22.8% 8.6 4.56 1.17 68.7% 1.56 0 0 0.0%
Bryce Miller
R
 5.73 4.70 4.81 4.44 4.37 4.44 4.43 2.3% 62.6% 10.3% 4.3 17.5% 7.2 1.70 1.27 65.7% 1.34 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.