MLB Postseason Single-Season Complete Games Record Progression
Every season that raised the bar, and the leader in every season between.
The MLB Postseason single-season complete games record is 5, set by Deacon Phillippe in 1903. It has stood for 122 years. The mark has been raised 0 times since 1903.
Record Holders
1 marks since 1903| Year | Player | CG | Stood for |
|---|---|---|---|
| 1903 |
 Deacon Phillippe
|
5 | still standing |
The earliest marks here are records only in the sense that nobody had done better yet. Season length, schedule and the rules themselves have all changed, so a figure from the 1870s is not comparable with a modern one and is not offered as though it were.