SPRINGFIELD ISOTOPES
PITCHING LEADERS
02/15/2032
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Team Index | Draft History | Starters: Positional - Pitchers | Registers: Batters - Pitchers | Leaders: Batters - Pitchers
TEAM PITCHING SINGLE SEASON LEADERS TEAM PITCHING CAREER LEADERS
140 IP required for season rate statistics. 315 IP required for career rate statistics.
ERA - SINGLE SEASON
Rank Player ERA Year  
1. Helespôntico Tourega 2.62 2024  
2. Aaron Marshall 3.03 2024  
3. Andrew Trew 4.07 2025  
4. Takashi Hayashi 4.21 2027  
5. Kevin Pennington 4.34 2025  
6. Mitsunari Yoshida 4.48 2026  
7. Alejandro Cabrera 4.68 2025  
         
         
         
ERA - CAREER
Rank Player ERA IP  
1. Kevin Pennington 4.60 420.1  
         
         
         
         
         
         
         
         
         
WINS - SINGLE SEASON
Rank Player W Year  
1. Helespôntico Tourega 16 2024  
2. Takashi Hayashi 12 2027  
3. Aaron Marshall 12 2024  
4. Harold L'Écuyer 12 2026  
5. Kevin Pennington 11 2026  
6. Paul Miles 10 2024  
7. Andrew Trew 9 2025  
8. Sancho Castaneda 9 2027  
9. Mitsunari Yoshida 9 2026  
10. Pedro Gallegos 8 2026  
WINS - CAREER
Rank Player W IP  
1. Kevin Pennington 26 420.1  
2. José Flores 21 309.1  
3. Paul Miles 18 183.0  
4. Helespôntico Tourega 16 164.2  
5. Harold L'Écuyer 14 177.1  
6. Aaron Marshall 14 197.2  
7. Raúl Valéncia 14 146.0  
8. Mark Cameron 13 276.0  
9. Juan Carlos Flores 13 275.1  
10. Takashi Hayashi 12 147.2  
LOSSES - SINGLE SEASON
Rank Player L Year  
1. José Flores 14 2030  
2. Hoshi Hasegawa 13 2031  
3. José Flores 12 2031  
4. Alejandro Cabrera 12 2025  
5. Hoshi Hasegawa 12 2030  
6. Manuel Herrera 11 2030  
7. Damon Alexander 10 2029  
8. Ismael Vélez 10 2031  
9. Damon Alexander 10 2028  
10. Gabriel Valentín 10 2030  
LOSSES - CAREER
Rank Player L IP  
1. José Flores 30 309.1  
2. Hoshi Hasegawa 25 198.1  
3. Kevin Pennington 25 420.1  
4. Damon Alexander 23 228.1  
5. Juan Nieves 17 318.0  
6. Juan Carlos Flores 16 275.1  
7. Alejandro Hernández 16 205.0  
8. Dan Stewart 16 232.0  
9. George Webber 14 256.1  
10. Mark Cameron 13 276.0  
WINNING PCT - SINGLE SEASON
Rank Player WPct Year  
1. Helespôntico Tourega .727 2024  
2. Aaron Marshall .706 2024  
3. Takashi Hayashi .632 2027  
4. Mitsunari Yoshida .529 2026  
5. Sancho Castaneda .500 2027  
6. Andrew Trew .500 2025  
7. Kevin Pennington .429 2025  
         
         
         
WINNING PCT - CAREER
Rank Player WPct IP  
1. Kevin Pennington .510 420.1  
         
         
         
         
         
         
         
         
         
SAVES - SINGLE SEASON
Rank Player SV Year  
1. Javier Rosa 32 2024  
2. Félix Gómez 21 2029  
3. Kevin Pennington 20 2027  
4. Jason Martin 17 2028  
5. Jesús Trujillo 16 2030  
6. Adrián Navarro 10 2031  
7. Jim Glenn 9 2028  
8. Jerry Herrington 9 2026  
9. Raúl Valéncia 8 2027  
10. Adrián Navarro 7 2030  
SAVES - CAREER
Rank Player SV IP  
1. Javier Rosa 32 54.1  
2. Kevin Pennington 30 420.1  
3. Félix Gómez 21 48.0  
4. Jason Martin 17 59.2  
5. Adrián Navarro 17 90.0  
6. Jesús Trujillo 16 34.1  
7. Jim Glenn 15 97.0  
8. Raúl Valéncia 12 146.0  
9. Hyeong-ro Kyon 10 61.2  
10. Jerry Herrington 9 109.2  
WAR - SINGLE SEASON
Rank Player WAR Year  
1. Helespôntico Tourega 6.4 2024  
2. Aaron Marshall 5.7 2024  
3. Harold L'Écuyer 4.2 2026  
4. Andrew Trew 3.8 2025  
5. Mitsunari Yoshida 3.3 2026  
6. Pedro Gallegos 3.1 2026  
7. Javier Rosa 2.9 2024  
8. Dan Stewart 2.9 2029  
9. Sancho Castaneda 2.4 2027  
10. Kevin Pennington 2.3 2026  
WAR - CAREER
Rank Player WAR IP  
1. Kevin Pennington 6.8 420.1  
2. Helespôntico Tourega 6.4 164.2  
3. Aaron Marshall 6.2 197.2  
4. Andrew Trew 6.1 225.2  
5. Dan Stewart 5.0 232.0  
6. Harold L'Écuyer 4.8 177.1  
7. Damon Alexander 4.0 228.1  
8. George Webber 3.8 256.1  
9. Pedro Gallegos 3.7 145.1  
10. Mitsunari Yoshida 3.3 150.2  
GAMES PITCHED - SINGLE SEASON
Rank Player G Year  
1. Wilson Carranza 56 2031  
2. Fred Trierum 53 2031  
3. Vitorio Acosta 52 2031  
4. Javier Rosa 52 2024  
5. Paul Miles 50 2024  
6. Adrián Navarro 45 2031  
7. Félix Gómez 44 2029  
8. Jason Martin 44 2028  
9. Víctor Méndez 43 2031  
10. Brad Quine 43 2028  
GAMES PITCHED - CAREER
Rank Player G IP  
1. Juan Nieves 129 318.0  
2. Kevin Pennington 123 420.1  
3. Paul Miles 106 183.0  
4. George Webber 94 256.1  
5. Fred Trierum 90 195.1  
6. Mark Cameron 89 276.0  
7. Brad Quine 87 202.1  
8. Juan Carlos Flores 76 275.1  
9. Adrián Navarro 76 90.0  
10. Raúl Valéncia 73 146.0  
GAMES STARTED - SINGLE SEASON
Rank Player GS Year  
1. Andrew Trew 28 2025  
2. Aaron Marshall 28 2024  
3. Alejandro Cabrera 27 2025  
4. Helespôntico Tourega 27 2024  
5. Mitsunari Yoshida 27 2026  
6. Sancho Castaneda 26 2027  
7. José Flores 25 2031  
8. José Flores 25 2030  
9. Hoshi Hasegawa 24 2031  
10. Dan Stewart 24 2028  
GAMES STARTED - CAREER
Rank Player GS IP  
1. José Flores 62 309.1  
2. Kevin Pennington 58 420.1  
3. Juan Carlos Flores 55 275.1  
4. Damon Alexander 51 228.1  
5. Dan Stewart 50 232.0  
6. Hoshi Hasegawa 47 198.1  
7. Alejandro Hernández 43 205.0  
8. Andrew Trew 43 225.2  
9. Aaron Marshall 32 197.2  
10. Pedro Gallegos 31 145.1  
COMPLETE GAMES - SINGLE SEASON
Rank Player CG Year  
1. Sancho Castaneda 2 2027  
2. Pedro Gallegos 1 2026  
3. Helespôntico Tourega 1 2024  
4. Juan Jose Villarreal 1 2025  
5. Mitsunari Yoshida 1 2026  
6. Orlando Romero 0 2030  
7. Kevin Pennington 0 2024  
8. Kevin Pennington 0 2025  
9. Kevin Pennington 0 2026  
10. Kevin Pennington 0 2027  
COMPLETE GAMES - CAREER
Rank Player CG IP  
1. Sancho Castaneda 2 145.2  
2. Pedro Gallegos 1 145.1  
3. Helespôntico Tourega 1 164.2  
4. Juan Jose Villarreal 1 119.0  
5. Mitsunari Yoshida 1 150.2  
6. Vitorio Acosta 0 100.0  
7. Alexander Akerboom 0 7.1  
8. Damon Alexander 0 228.1  
9. Alejandro Cabrera 0 144.1  
10. Mark Cameron 0 276.0  
SHUTOUTS - SINGLE SEASON
Rank Player SHO Year  
1. Juan Jose Villarreal 1 2025  
2. Sancho Castaneda 1 2027  
3. Pedro Gallegos 1 2026  
4. Helespôntico Tourega 1 2024  
5. Mitsunari Yoshida 0 2026  
6. Jesús Martínez 0 2026  
7. Orlando Romero 0 2030  
8. Kevin Pennington 0 2024  
9. Kevin Pennington 0 2025  
10. Kevin Pennington 0 2026  
SHUTOUTS - CAREER
Rank Player SHO IP  
1. Sancho Castaneda 1 145.2  
2. Pedro Gallegos 1 145.1  
3. Helespôntico Tourega 1 164.2  
4. Juan Jose Villarreal 1 119.0  
5. Vitorio Acosta 0 100.0  
6. Alexander Akerboom 0 7.1  
7. Damon Alexander 0 228.1  
8. Alejandro Cabrera 0 144.1  
9. Mark Cameron 0 276.0  
10. Claudio Cardoza 0 72.1  
INNINGS PITCHED - SINGLE SEASON
Rank Player IP Year  
1. Aaron Marshall 172.0 2024  
2. Helespôntico Tourega 164.2 2024  
3. Mitsunari Yoshida 150.2 2026  
4. Kevin Pennington 149.1 2025  
5. Andrew Trew 148.0 2025  
6. Takashi Hayashi 147.2 2027  
7. Sancho Castaneda 145.2 2027  
8. Alejandro Cabrera 144.1 2025  
9. Kevin Pennington 138.0 2026  
10. Harold L'Écuyer 136.2 2026  
INNINGS PITCHED - CAREER
Rank Player IP IP  
1. Kevin Pennington 420.1 420.1  
2. Juan Nieves 318.0 318.0  
3. José Flores 309.1 309.1  
4. Mark Cameron 276.0 276.0  
5. Juan Carlos Flores 275.1 275.1  
6. George Webber 256.1 256.1  
7. Dan Stewart 232.0 232.0  
8. Damon Alexander 228.1 228.1  
9. Andrew Trew 225.2 225.2  
10. Alejandro Hernández 205.0 205.0  
HITS ALLOWED - SINGLE SEASON
Rank Player H Year  
1. Sancho Castaneda 173 2027  
2. Kevin Pennington 168 2025  
3. Mitsunari Yoshida 167 2026  
4. Takashi Hayashi 166 2027  
5. Kevin Pennington 147 2026  
6. Mark Cameron 146 2025  
7. Alejandro Cabrera 143 2025  
8. Andrew Trew 141 2025  
9. Aaron Marshall 138 2024  
10. José Flores 132 2030  
HITS ALLOWED - CAREER
Rank Player H IP  
1. Kevin Pennington 451 420.1  
2. Juan Nieves 358 318.0  
3. Mark Cameron 330 276.0  
4. José Flores 319 309.1  
5. Juan Carlos Flores 305 275.1  
6. Damon Alexander 251 228.1  
7. Dan Stewart 235 232.0  
8. Hoshi Hasegawa 229 198.1  
9. Andrew Trew 225 225.2  
10. George Webber 225 256.1  
HOME RUNS ALLOWED - SINGLE SEASON
Rank Player HR Year  
1. George Webber 18 2024  
2. Juan Jose Villarreal 17 2025  
3. Hoshi Hasegawa 17 2030  
4. Sancho Castaneda 16 2027  
5. Juan Nieves 15 2026  
6. Vitorio Acosta 15 2031  
7. Takashi Hayashi 14 2027  
8. Mark Cameron 14 2025  
9. Juan Nieves 14 2027  
10. Marcelo Ribeiro 14 2031  
HOME RUNS ALLOWED - CAREER
Rank Player HR IP  
1. Juan Nieves 38 318.0  
2. Juan Carlos Flores 33 275.1  
3. Mark Cameron 31 276.0  
4. Kevin Pennington 29 420.1  
5. Hoshi Hasegawa 25 198.1  
6. George Webber 25 256.1  
7. Jack Cashmore 22 161.0  
8. Paul Miles 22 183.0  
9. Tomás Dearcos 21 84.0  
10. Brad Quine 21 202.1  
WALKS ALLOWED - SINGLE SEASON
Rank Player BB Year  
1. Alejandro Cabrera 79 2025  
2. Hoshi Hasegawa 77 2030  
3. Wilson Carranza 76 2031  
4. Alejandro Hernández 71 2029  
5. José Flores 68 2030  
6. Vitorio Acosta 66 2031  
7. Aaron Marshall 65 2024  
8. Andrew Trew 65 2025  
9. Jack Cashmore 61 2030  
10. Víctor Méndez 60 2031  
WALKS ALLOWED - CAREER
Rank Player BB IP  
1. José Flores 162 309.1  
2. Kevin Pennington 139 420.1  
3. Hoshi Hasegawa 132 198.1  
4. Alejandro Hernández 125 205.0  
5. Juan Nieves 113 318.0  
6. Víctor Méndez 110 102.2  
7. Fred Trierum 110 195.1  
8. Mark Cameron 109 276.0  
9. Wilson Carranza 103 122.1  
10. Jack Cashmore 102 161.0  
WALKS PER 9 IP - SINGLE SEASON
Rank Player BB9 Year  
1. Mitsunari Yoshida 2.0 2026  
2. Helespôntico Tourega 2.4 2024  
3. Kevin Pennington 2.7 2025  
4. Sancho Castaneda 2.7 2027  
5. Aaron Marshall 3.4 2024  
6. Takashi Hayashi 3.7 2027  
7. Andrew Trew 4.0 2025  
         
         
         
WALKS PER 9 IP - CAREER
Rank Player BB9 IP  
1. Kevin Pennington 3.0 420.1  
         
         
         
         
         
         
         
         
         
STRIKEOUTS - SINGLE SEASON
Rank Player K Year  
1. Helespôntico Tourega 165 2024  
2. Aaron Marshall 146 2024  
3. Andrew Trew 140 2025  
4. Harold L'Écuyer 121 2026  
5. Sancho Castaneda 117 2027  
6. Jerry Herrington 114 2026  
7. Paul Miles 106 2024  
8. Dan Stewart 102 2029  
9. Takashi Hayashi 99 2027  
10. Pedro Gallegos 97 2026  
STRIKEOUTS - CAREER
Rank Player K IP  
1. Kevin Pennington 259 420.1  
2. Juan Nieves 254 318.0  
3. Paul Miles 224 183.0  
4. Andrew Trew 211 225.2  
5. Dan Stewart 186 232.0  
6. George Webber 170 256.1  
7. Aaron Marshall 165 197.2  
8. Helespôntico Tourega 165 164.2  
9. Harold L'Écuyer 157 177.1  
10. Juan Carlos Flores 155 275.1  
STRIKEOUTS PER 9 IP - SINGLE SEASON
Rank Player K9 Year  
1. Helespôntico Tourega 9.0 2024  
2. Andrew Trew 8.5 2025  
3. Aaron Marshall 7.6 2024  
4. Sancho Castaneda 7.2 2027  
5. Takashi Hayashi 6.0 2027  
6. Mitsunari Yoshida 4.9 2026  
7. Alejandro Cabrera 4.3 2025  
         
         
         
STRIKEOUTS PER 9 IP - CAREER
Rank Player K9 IP  
1. Juan Nieves 7.2 318.0  
         
         
         
         
         
         
         
         
         
K/BB - SINGLE SEASON
Rank Player K/BB Year  
1. Helespôntico Tourega 3.84 2024  
2. Sancho Castaneda 2.72 2027  
3. Mitsunari Yoshida 2.48 2026  
4. Aaron Marshall 2.25 2024  
5. Andrew Trew 2.15 2025  
6. Takashi Hayashi 1.65 2027  
7. Kevin Pennington 1.59 2025  
         
         
         
K/BB - CAREER
Rank Player K/BB IP  
1. Juan Nieves 2.2 318.0  
         
         
         
         
         
         
         
         
         
WHIP - SINGLE SEASON
Rank Player WHIP Year  
1. Helespôntico Tourega 0.95 2024  
2. Aaron Marshall 1.18 2024  
3. Mitsunari Yoshida 1.33 2026  
4. Andrew Trew 1.39 2025  
5. Kevin Pennington 1.42 2025  
6. Sancho Castaneda 1.48 2027  
7. Takashi Hayashi 1.53 2027  
         
         
         
WHIP - CAREER
Rank Player WHIP IP  
1. Kevin Pennington 1.40 420.1  
         
         
         
         
         
         
         
         
         
OAVG - SINGLE SEASON
Rank Player OAVG Year  
1. Helespôntico Tourega .191 2024  
2. Aaron Marshall .220 2024  
3. Andrew Trew .248 2025  
4. Alejandro Cabrera .255 2025  
5. Mitsunari Yoshida .276 2026  
6. Takashi Hayashi .280 2027  
7. Kevin Pennington .285 2025  
         
         
         
OAVG - CAREER
Rank Player OAVG IP  
1. Kevin Pennington .274 420.1  
         
         
         
         
         
         
         
         
         
OSLG - SINGLE SEASON
Rank Player OSLG Year  
1. Helespôntico Tourega .279 2024  
2. Aaron Marshall .314 2024  
3. Andrew Trew .342 2025  
4. Alejandro Cabrera .393 2025  
5. Mitsunari Yoshida .408 2026  
6. Kevin Pennington .427 2025  
7. Takashi Hayashi .435 2027  
         
         
         
OSLG - CAREER
Rank Player OSLG IP  
1. Kevin Pennington .406 420.1  
         
         
         
         
         
         
         
         
         
OOPS - SINGLE SEASON
Rank Player OOPS Year  
1. Helespôntico Tourega .531 2024  
2. Aaron Marshall .612 2024  
3. Andrew Trew .673 2025  
4. Mitsunari Yoshida .721 2026  
5. Alejandro Cabrera .744 2025  
6. Kevin Pennington .763 2025  
7. Takashi Hayashi .781 2027  
         
         
         
OOPS - CAREER
Rank Player OOPS IP  
1. Kevin Pennington .739 420.1  
         
         
         
         
         
         
         
         
         
RWAR - SINGLE SEASON
Rank Player rWAR Year  
1. Helespôntico Tourega 5.1 2024  
2. Aaron Marshall 4.6 2024  
3. Harold L'Écuyer 3.7 2026  
4. Ricardo Valdés 3.1 2029  
5. Andrew Trew 3.1 2025  
6. Dan Stewart 2.9 2029  
7. George Webber 2.8 2026  
8. Tyan-yu Fok 2.8 2031  
9. José Flores 2.7 2031  
10. Takashi Hayashi 2.7 2027  
RWAR - CAREER
Rank Player rWAR IP  
1. George Webber 6.4 256.1  
2. Helespôntico Tourega 5.1 164.2  
3. Dan Stewart 5.1 232.0  
4. Kevin Pennington 4.7 420.1  
5. Aaron Marshall 4.5 197.2  
6. Brad Quine 4.3 202.1  
7. José Flores 3.8 309.1  
8. Harold L'Écuyer 3.7 177.1  
9. Paul Miles 3.4 183.0  
10. Andrew Trew 3.4 225.2  
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