Rest of Season Projection
MichaelCategorySpencer
93K →96
3.96ERA ←4.66
1.32WHIP ←1.43
4–8W →9–20
0SV0
Current Season
MichaelCategorySpencer
65K ←43
3.23ERA →1.34
1.12WHIP ←1.13
4W →7
0SV0
What Each Player's System Trusts
Michael Wacha
- babip_againstNOISEBABIP-against 0.253 suppressed and unstable — flattering the ERA
- xeraSIGNALluck-free xERA 3.96 is 0.73 above the ERA — regression coming
Spencer Arrighetti
- babip_againstNOISEBABIP-against 0.229 suppressed and unstable — flattering the ERA
- xeraSIGNALluck-free xERA 4.96 is 3.02 above the ERA — regression coming
Michael Wacha: 93 K / 3.96 ERA. Spencer Arrighetti: 96 K / 4.66 ERA. Different roster decisions — see individual verdicts.
Bare-stats comparison (narrative review pending).

