Walter Johnson has the lowest ERA with 300+ strikeouts in a season, with an ERA of 1.36 in 1910.

Clayton Kershaw had his fewest runs above average in a season in 2024, with 2.

Since 1900, Walter Johnson has the lowest ERA- with 300+ strikeouts in a season, with an ERA- of 42 in 1912.

Since 1961, Pedro Martinez has the lowest fielding-independent pitching with 162.0+ innings pitched in a season, with a FIP of 1.38 in 1999.

Since 1961, Pedro Martinez has the lowest fielding-independent pitching with 200.0+ innings pitched in a season, with a FIP of 1.38 in 1999.

Clayton Kershaw had his lowest ERA- in a season in 2016, with an ERA- of 42.

Ron Guidry won 100.0 percent of the time in April 1978.

Pedro Martinez had a FIP of 1.38 in 1999.

Pedro Martinez had a 1.15 FIP in his rookie season in 1992.

Since 1961, Ron Guidry has the best record with 20+ pitcher wins in a season, with a record of 25-3 in 1978.

Since 1961, Gerrit Cole has the most games pitched with 10+ strikeouts with 1 or fewer walk allowed in a season, with 14 games in 2019.

Ed Walsh has the most games pitched with 7.0+ innings pitched and 1 or fewer run allowed in a season, with 26 games in 1908.

Since 1961, Bob Gibson has the most games pitched with 7.0+ innings pitched and 1 or fewer run allowed in a season, with 24 games in 1968.

Ed Walsh has the most games pitched with 7.0+ innings pitched and 1 or fewer run allowed in a season, with 26 games in 1908.

Stephen Strasburg had a record of 4-3 with an ERA of 5.06 and 43 strikeouts in 8 appearances versus the Diamondbacks on the road in his career.