John Costello

#14 · Age: 37 · Position: RP · Bats: R · Throws: R

Development

Visible rating changes recorded over this player's career.

Earlier monthly snapshots 3 periods
August 1998 6 changes
Stuff (vs LHB) 6 → 5 -1
Stuff (vs RHB) 6 → 5 -1
Control (vs LHB) 10 → 9 -1
Control (vs RHB) 10 → 9 -1
Stuff (Overall) 6 → 5 -1
Control (Overall) 10 → 9 -1
July 1998 1 change
Stuff (Potential) 10 → 9 -1
May 1998 4 changes
Splitter 8 → 7 -1
Control (vs LHB) 11 → 10 -1
Control (vs RHB) 11 → 10 -1
Control (Overall) 11 → 10 -1