What does RP mean in baseball?
RP is a relief pitcher in baseball. A pitcher who comes in after the start, usually for an inning at a time and often against a chosen part of the order.
What a relief pitcher looks like
460 relief pitchers are on MLB rosters right now, and the median one is 6' 3" and 213 lb.
- On rosters
- 460
- Median height
- 6' 3"
- Median weight
- 213 lb
- Median age
- 28
Since 2020 a reliever must face three batters or finish the half-inning, which ended the one-batter specialist.
Saves at the position, 2026
The median relief pitcher with a figure at all posted 2 saves. These five led the position.
- 1Bryan BakerTB41
- 1Cade SmithCLE41
- 3Mason MillerSD38
- 3Riley O'BrienSTL38
- 5Aroldis ChapmanBOS35