Jerry Koosman vs Pascual Perez
Jerry Koosman and Pascual Perez compared on their MLB careers: Jerry Koosman played 19 seasons, 1967 to 1985, Pascual Perez 11 seasons, 1980 to 1991. Jerry Koosman has 222 wins to Pascual Perez's 67. Jerry Koosman won 1 title.
Who has the better career numbers?
How do they compare in the postseason?
Where each stands all time
Among the MLB players with a career line on file, regular season, counting stats only — the same lists the records pages run on.
Titles and awards
- Jerry Koosman: 1 championship; none on file
- Pascual Perez: 0 championships; none on file
Awards come from the league’s published winner lists; a championship counts a season played for the club that won it.
Season by season
Lined up by career year, not by calendar: each row is the players’ nth season.