League Index
 
Bold indicates World Championship Champion
 
Lg LgAvg LgERA Champion Year Champion LgERA LgAvg Lg
AL .262 4.44 Oakland Athletics 2012 Chicago (N) Cubs 4.43 .261 NL
AL .262 4.45 Cleveland Indians 2013 Chicago (N) Cubs 4.45 .259 NL
AL .261 4.40 Cleveland Indians 2014 Chicago (N) Cubs 4.53 .261 NL
AL .269 4.58 Orlando Generals
2015 San Diego Padres
4.40 .265 NL
AL .272 4.75 Canada Blue Jays 2016 Arizona Diamondbacks 4.27 .261 NL
AL .276 4.84 Orlando Generals 2017 Los Angeles Dodgers 4.51 .265 NL
AL .279 4.97 Canada Blue Jays 2018 Pittsburgh Pirates 4.35 .263 NL
AL .270 4.76 Las Vegas Outlaws 2019 Los Angeles Dodgers 4.58 .274 NL
AL .269 4.75 Mexico City Red Devils 2020 Pittsburgh Pirates 4.71 .267 NL
AL .266 4.62 Oakland Athletics 2021 Atlanta Braves 4.56 .268 NL
AL .265 4.69 Detroit Tigers 2022 Washington Senators 4.38 .264 NL
AL .264 4.53 Baltimore Orioles 2023 Arizona Diamondbacks 4.57 .269 NL
AL .270 4.78 Baltimore Orioles 2024 Pittsburgh Pirates 4.36 .261 NL
AL .270 4.85 Detroit Tigers 2025 Pittsburgh Pirates 4.46 .265 NL
AL .272 4.99 Chicago (A) White Sox 2026 Pittsburgh Pirates 4.57 .265 NL
AL .270 4.86 Orlando Generals 2027 Pittsburgh Pirates 4.75 .268 NL
AL .276 5.00 Texas Rangers 2028 Pittsburgh Pirates 5.13 .274 NL
AL .279 5.30 Chicago (A) White Sox 2029 San Francisco Giants 4.86 .268 NL