Since 1961, Nolan Ryan has allowed the most walks in a season, with 204 allowed in 1977.

Dwight Gooden had a 1.68 FIP for the Mets in his rookie season in 1984.

Dwight Gooden had an ERA- of 74 for the Mets in his rookie season in 1984.

Matt Kilroy has struck out the most hitters by a rookie, with 513 strikeouts in 1886.

Matt Kilroy fanned the most hitters by a pitcher in his first season, with 513 strikeouts in his rookie season.

Dwight Gooden struck out 276 hitters in his rookie season in 1984.

Dwight Gooden struck out 276 hitters for the Mets in his rookie season in 1984.

The Philadelphia Quakers had their fewest wins in a season in 1883, with 17 wins.

Bob Gibson has pitched the most complete games with 1 or fewer earned run in a season, with 22 complete games in 1968.

Since 1961, 4 pitchers are tied for the most complete games in a season, with 30 complete games. The first three are Catfish Hunter in 1975, Steve Carlton in 1972 and Fergie Jenkins in 1971.

Since 1961, the Philadelphia Phillies have their fewest wins in a season in 2020, with 28 wins.

Since 1961, Bob Gibson has pitched the most complete games with 1 or fewer earned run in a season, with 22 complete games in 1968.

David Ortiz crushed 262 home runs after the All-Star Game in his career.

lowest era by a league in a season

Bob Gibson had the lowest ERA in 1968, with an ERA of 1.12.