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Tuesday, 04/29/2025 7:05 PM 
 RecordStarterOpenLatest
 Gm#W-LPitcherMLO/UMLO/URL
 KC Kansas City96914-15LORENZEN(R)+1309o-05+1409o+05+1.5, -155
 TAM Tampa Bay97014-14BRADLEY(R)-1409u-15-1509u-25-1.5, +135

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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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 Kansas City Royals
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Hunter HarveyShoulder15-day IL04/28/20250005.31000070.000.188
Hunter Harvey (P, Royals) on 15-day IL with a Grade 1 right teres major strain, out indefinitely. Next game: 04/29/25.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Cole RagansP✅GroinQuestionable04/24/202511030.727161549464.401.174
Cole Ragans (P, Royals) is day-to-day with a left groin strain; status for Tuesday against the Rays is uncertain.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Carlos MateoUndisclosedQuestionable04/28/20250000.00000000.000.000
Carlos Mateo of the Kansas City Royals is day-to-day and questionable for the game on 04/29/2025 against Tampa Bay.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Christian ChamberlainSP Elbow7-day IL04/28/20250000.00000000.000.000
Christian Chamberlain (SP, Royals) is on the 7-day IL due to an elbow injury. Next game: 04/29/2025 at Tampa Bay.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Alec MarshShoulder15-day IL04/28/20250000.00000000.000.000
Alec Marsh, Kansas City Royals pitcher, is on the 15-day IL due to a shoulder injury, with no return date set.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
James McArthurElbow15-day IL04/28/20250000.00000000.000.000
James McArthur of the Royals is on the 15-day IL for elbow surgery, with no return timetable. Next game on 04/29/2025.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
L.P. LangevinSP Lat60-day IL04/28/20250000.00000000.000.000
L.P. Langevin of the Kansas City Royals is on the 60-day IL due to a lat injury; next game is on 04/29/2025.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Asa LacySP ElbowOut04/28/20250000.00000000.000.000
Asa Lacy of the Kansas City Royals is out with an elbow injury and will miss the game on April 29, 2025, against Tampa Bay.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Sam LongElbow15-day IL04/28/20250207.012121025612.862.429
Sam Long (P, Royals) is on the 15-day IL with left elbow inflammation, with no return timetable. Next game: 04/29/2025.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Kyle WrightShoulder15-day IL04/28/20250000.00000000.000.000
Kyle Wright (P, Royals) is on the 15-day IL after shoulder surgery and has no timetable for return. Next game: 04/29/2025.
 Tampa Bay Rays
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Shane McClanahanP✅Triceps60-day IL04/26/20250000.00000000.000.000
Shane McClanahan (P, Rays) on 60-day IL with a triceps injury, out indefinitely. Next game: 04/29/2025 vs. KC.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Nicholas BitskoUndisclosed60-day IL04/28/20250000.00000000.000.000
Nicholas Bitsko (P, Rays) is on the 60-day IL with an unknown injury. Next game: 04/29/2025 vs. Kansas City.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Yoniel CuretShoulder60-day IL04/28/20250000.00000000.000.000
Yoniel Curet (P) of the Tampa Bay Rays is on the 60-day IL due to a shoulder injury. Next game: 04/29/2025 vs. Kansas City.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Alexander CookSP Undisclosed60-day IL04/28/20250000.00000000.000.000
Alexander Cook (SP) on 60-day IL with an unknown injury; next game for the Rays is 04/29/2025 vs. Kansas City.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Kodi WhitleyRP Undisclosed60-day IL04/28/20250000.00000000.000.000
Kodi Whitley (RP, Tampa Bay Rays) is on the 60-day IL with an unknown injury. Next game: 04/29/2025 vs. Kansas City.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Kyle WhittenSP Undisclosed60-day IL04/28/20250000.00000000.000.000
Kyle Whitten (SP, Rays) is on the 60-day IL with an unknown issue. Next game: 04/29/2025 vs. Kansas City.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Andrew LindseySP Undisclosed60-day IL04/28/20250000.00000000.000.000
Andrew Lindsey (SP, Rays) on 60-day IL; status unknown. Next game on 04/29/2025 vs. Kansas City. Info updated 04/28/2025.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Alfredo ZarragaSP Undisclosed7-day IL04/28/20250000.00000000.000.000
Alfredo Zarraga (SP, TB Rays) placed on 7-day IL. Status unknown. Next game: 04/29/2025 vs. Kansas City. Updated 04/28/2025.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Jonathan HernandezRP Undisclosed60-day IL04/28/20250000.00000000.000.000
Jonathan Hernandez (RP, Rays) on 60-day IL; status unknown. Next game: 04/29/2025 vs. Kansas City. Info as of 04/28/2025.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Andrew WantzRP Elbow60-day IL04/28/20250000.00000000.000.000
Andrew Wantz (RP, Rays) on 60-day IL due to elbow injury; next game on 04/29/2025 vs. Kansas City. Info updated 04/28/2025.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Kevin KellyThigh15-day IL04/28/20250005.02221223.600.800
Kevin Kelly (P, Rays) is on the 15-day IL with a glute injury and will miss an unknown duration. Next game: 4/29 vs. KC.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Alex FaedoShoulder60-day IL03/28/20250000.00000000.000.000
Alex Faedo (P, Rays) is on the 60-day IL with right shoulder inflammation, and will miss an undetermined time. Next game: 04/29/2025.
PlayerPosInjuryStatusUpdatedWLSVIPHRERHRBBSOERAWHIP
Nathan LavenderUndisclosed60-day IL03/25/20250000.00000000.000.000
Nathan Lavender (P, Rays) is on the 60-day IL with an elbow injury; next game is on 04/29/2025 vs. Kansas City.

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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 Kansas City 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
Carlos Estevez
R
1 0 2.77 12 0 7 2 77.8% 13.0 5 5 4 0 9 3 2 11 1 1 1.077 0.116 0.296 0.163 0.459
Lucas Erceg
R
0 0 0.87 12 8 1 0 100.0% 10.3 3 1 1 0 1 0 0 7 0 0 0.387 0.097 0.125 0.097 0.222
Hunter Harvey
R
0 0 0.00 6 3 0 0 0.0% 5.3 1 0 0 0 0 0 0 7 0 0 0.188 0.059 0.059 0.059 0.118
John Schreiber
R
1 1 2.13 12 1 0 0 0.0% 12.7 11 3 3 3 5 0 0 12 0 0 1.263 0.250 0.327 0.477 0.804
Angel Zerpa
L
1 0 4.82 10 0 0 2 0.0% 9.3 12 5 5 2 4 0 0 8 0 0 1.714 0.316 0.381 0.605 0.986
Sam Long
L
0 2 12.86 7 0 0 0 0.0% 7.0 12 12 10 2 5 1 0 6 3 0 2.429 0.375 0.459 0.656 1.116
Daniel Lynch
L
3 0 1.35 12 0 1 0 100.0% 13.3 9 2 2 1 5 0 1 8 0 0 1.050 0.196 0.288 0.283 0.571
Chris Stratton
R
0 0 9.00 8 0 0 0 0.0% 11.0 21 13 11 2 6 0 0 7 0 0 2.455 0.396 0.458 0.604 1.061
Steven Cruz
R
0 0 0.00 7 2 0 0 0.0% 6.7 0 0 0 0 3 0 0 5 0 0 0.450 0.000 0.130 0.000 0.130
Jonathan Bowlan
R
0 0 0.00 1 0 0 0 0.0% 2.0 0 0 0 0 0 0 0 1 0 0 0.000 0.000 0.000 0.000 0.000
Cole Ragans
L
1 1 4.40 6 0 0 0 0.0% 30.7 27 16 15 4 9 0 1 46 2 0 1.174 0.235 0.296 0.409 0.705
Seth Lugo
R
2 3 3.08 6 0 0 0 0.0% 38.0 29 14 13 6 12 1 1 29 1 0 1.079 0.218 0.288 0.406 0.694
Michael Wacha
R
1 3 3.38 6 0 0 0 0.0% 32.0 28 12 12 1 12 0 0 26 0 0 1.250 0.231 0.301 0.314 0.615
Kristofer Bubic
L
2 2 2.50 6 0 0 0 0.0% 36.0 30 11 10 2 12 1 2 37 1 0 1.167 0.221 0.293 0.324 0.617
Kyle Wright
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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 Tampa Bay 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
Peter Fairbanks
R
2 1 2.38 12 0 6 0 100.0% 11.3 9 3 3 0 6 0 0 10 0 0 1.324 0.220 0.319 0.268 0.587
Edwin Uceta
R
2 1 3.55 13 4 0 1 0.0% 12.7 10 5 5 2 5 2 2 10 0 0 1.184 0.227 0.333 0.409 0.742
Manuel Rodriguez
R
0 0 2.25 12 4 0 0 0.0% 12.0 10 4 3 1 1 0 1 12 1 0 0.917 0.227 0.261 0.318 0.579
Garrett Cleavinger
L
0 0 2.53 11 1 1 0 100.0% 10.7 5 3 3 2 2 0 1 16 0 0 0.656 0.135 0.200 0.324 0.524
Kevin Kelly
R
0 0 3.60 5 1 0 0 0.0% 5.0 2 2 2 1 2 0 0 2 1 0 0.800 0.118 0.211 0.294 0.505
Mason Montgomery
L
0 1 4.66 10 3 0 1 0.0% 9.7 10 6 5 3 3 0 0 13 0 0 1.345 0.256 0.310 0.487 0.797
Alex Faedo
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
Hunter Bigge
R
0 0 2.77 11 1 0 1 0.0% 13.0 9 4 4 4 4 0 1 11 0 0 1.000 0.196 0.275 0.478 0.753
Mason Englert
R
0 0 3.21 8 0 0 0 0.0% 14.0 11 6 5 1 3 0 1 12 0 0 1.000 0.220 0.278 0.300 0.578
Nathan Lavender
L
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
Eric Orze
R
0 0 0.00 5 0 1 0 100.0% 7.0 6 1 0 0 2 0 0 4 0 0 1.143 0.250 0.308 0.250 0.558
Shane McClanahan
L
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
Ryan Pepiot
R
2 3 4.24 6 0 0 0 0.0% 34.0 35 17 16 8 12 0 1 34 2 0 1.382 0.263 0.329 0.534 0.863
Drew Rasmussen
R
1 1 2.10 5 0 0 0 0.0% 25.7 17 6 6 1 6 0 1 27 0 0 0.896 0.189 0.247 0.233 0.481
Shane Baz
R
3 0 2.45 5 0 0 0 0.0% 29.3 20 8 8 3 9 0 2 36 0 0 0.989 0.194 0.272 0.282 0.553
Zack Littell
R
1 5 5.03 6 0 0 0 0.0% 34.0 34 19 19 8 8 1 0 22 0 0 1.235 0.264 0.307 0.512 0.818
Joe Boyle
R
1 0 0.00 1 0 0 0 0.0% 5.0 0 2 0 0 2 0 1 7 0 0 0.400 0.000 0.167 0.000 0.167
Jacob Waguespack
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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 Kansas City 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%
Carlos Estevez
R
2.77 0.95 1.52 3.95 4.26 3.95 3.20 0.0% 58.4% 16.4% 6.2 20.0% 7.6 1.22 1.54 68.8% 0.70 0 0 0.0%
Lucas Erceg
R
0.87 -1.02 0.31 2.04 1.93 2.04 2.03 0.0% 65.1% 2.9% 0.9 20.0% 6.1 7.00 0.77 75.0% 2.00 2 0 0.0%
Hunter Harvey
R
0.00 -1.86 0.08 0.47 0.37 0.47 0.50 0.0% 64.6% 0.0% 0.0 41.2% 11.8 0.00 1.31 100.0% 2.50 0 0 0.0%
John Schreiber
R
2.13 4.70 4.44 5.47 5.38 5.47 5.48 6.1% 63.4% 9.3% 3.6 22.2% 8.5 2.40 1.34 110.2% 2.40 9 3 33.3%
Angel Zerpa
L
4.82 6.76 6.86 5.46 5.21 5.46 5.56 4.8% 59.0% 9.1% 3.9 18.2% 7.7 2.00 1.29 83.3% 16.00 6 5 83.3%
Sam Long
L
12.86 10.30 11.57 7.24 6.54 7.24 6.85 5.4% 59.7% 13.2% 6.4 15.8% 7.7 1.20 1.57 35.2% 1.40 6 3 50.0%
Daniel Lynch
L
1.35 2.31 2.43 4.22 4.41 4.22 4.24 1.9% 64.7% 9.1% 3.4 14.5% 5.4 1.60 0.98 95.6% 1.40 1 0 0.0%
Chris Stratton
R
9.00 10.03 10.92 5.83 5.25 5.83 5.85 3.4% 59.9% 10.0% 4.9 11.7% 5.7 1.17 1.18 57.9% 2.50 0 0 0.0%
Steven Cruz
R
0.00 -1.64 0.19 2.95 3.05 2.95 3.02 0.0% 65.9% 13.0% 4.1 21.7% 6.8 1.67 1.20 100.0% 3.33 2 0 0.0%
Jonathan Bowlan
R
0.00 -2.76 0.00 2.10 2.01 2.10 2.23 0.0% 65.0% 0.0% 0.0 16.7% 4.5 0.00 0.50 0.0% 3.00 0 0 0.0%
Cole Ragans
L
4.40 3.55 3.23 2.77 2.74 2.77 2.77 3.2% 65.4% 7.0% 2.6 35.7% 13.5 5.11 1.79 66.9% 1.50 0 0 0.0%
Seth Lugo
R
3.08 3.30 3.05 4.65 4.65 4.65 4.57 4.1% 65.2% 7.7% 2.8 18.6% 6.9 2.42 1.08 83.3% 1.18 0 0 0.0%
Michael Wacha
R
3.38 2.95 2.72 3.01 3.11 3.01 3.01 0.8% 64.1% 8.8% 3.4 19.1% 7.3 2.17 1.19 72.5% 1.83 0 0 0.0%
Kristofer Bubic
L
2.50 2.82 2.79 2.93 3.01 2.93 2.84 1.3% 67.2% 7.9% 3.0 24.3% 9.3 3.08 1.36 80.1% 2.67 0 0 0.0%
Kyle Wright
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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 Tampa Bay 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%
Peter Fairbanks
R
2.38 2.65 2.71 2.92 3.06 2.92 2.93 0.0% 59.5% 12.2% 4.8 20.4% 7.9 1.67 1.41 80.0% 1.83 1 0 0.0%
Edwin Uceta
R
3.55 3.64 3.82 5.23 5.29 5.23 4.74 3.9% 67.2% 9.1% 3.6 18.2% 7.1 2.00 1.18 84.5% 0.54 5 0 0.0%
Manuel Rodriguez
R
2.25 2.43 2.09 2.68 2.67 2.68 2.74 2.2% 66.5% 2.1% 0.8 25.0% 9.0 12.00 1.08 75.5% 9.00 5 4 80.0%
Garrett Cleavinger
L
2.53 1.64 1.51 3.38 3.21 3.38 3.41 5.0% 66.7% 5.0% 1.7 40.0% 13.5 8.00 1.69 96.2% 1.80 0 0 0.0%
Kevin Kelly
R
3.60 2.02 1.60 6.10 6.48 6.10 6.02 5.3% 61.2% 10.5% 3.6 10.5% 3.6 1.00 0.80 76.9% 0.80 0 0 0.0%
Mason Montgomery
L
4.66 5.93 5.05 5.38 4.89 5.38 5.39 7.1% 74.3% 7.1% 2.8 31.0% 12.1 4.33 1.66 79.5% 3.33 2 2 100.0%
Alex Faedo
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%
Hunter Bigge
R
2.77 4.18 3.66 6.56 6.54 6.56 6.56 7.8% 64.3% 7.5% 2.8 20.8% 7.6 2.75 1.15 119.0% 2.80 0 0 0.0%
Mason Englert
R
3.21 2.42 2.30 3.17 3.18 3.17 3.19 1.9% 66.7% 5.3% 1.9 21.1% 7.7 4.00 1.07 66.2% 2.67 0 0 0.0%
Nathan Lavender
L
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%
Eric Orze
R
0.00 2.39 2.47 2.81 2.95 2.81 2.88 0.0% 63.1% 6.9% 2.6 13.8% 5.1 2.00 0.86 87.5% 3.00 0 0 0.0%
Shane McClanahan
L
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%
Ryan Pepiot
R
4.24 5.41 5.04 5.31 5.01 5.31 5.31 5.5% 65.7% 8.0% 3.2 22.7% 9.0 2.83 1.35 84.2% 1.88 0 0 0.0%
Drew Rasmussen
R
2.10 1.54 1.61 2.32 2.34 2.32 2.32 1.0% 67.1% 5.9% 2.1 26.7% 9.5 4.50 1.29 79.6% 1.77 0 0 0.0%
Shane Baz
R
2.45 2.35 2.35 3.10 3.03 3.10 3.10 2.6% 65.5% 7.6% 2.8 30.3% 11.0 4.00 1.53 85.8% 1.57 0 0 0.0%
Zack Littell
R
5.03 4.99 4.35 5.57 5.43 5.57 5.48 5.8% 68.8% 5.6% 2.1 15.3% 5.8 2.75 0.88 74.7% 1.15 0 0 0.0%
Joe Boyle
R
0.00 -1.83 0.32 2.10 2.04 2.10 1.98 0.0% 62.2% 11.1% 3.6 38.9% 12.6 3.50 1.80 33.3% 0.67 0 0 0.0%
Jacob Waguespack
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.