Rest of Season Projection
IsaacCategorySean
28K →59
3.70ERA ←3.97
1.24WHIP ←1.29
0–0W0–0
0SV0
Current Season
IsaacCategorySean
15K →42
4.12ERA ←5.08
1.47WHIP →1.46
0W0
0SV0
What Each Player's System Trusts
Isaac Mattson
- xeraNOISEskill near league average (6.33)
Sean Manaea
- xeraSIGNALluck-free xERA 4.12 is right around league — a usable arm the ERA is hiding
- babip_againstNOISEBABIP-against 0.321 elevated and unstable — bloating the ERA
Isaac Mattson: 28 K / 3.70 ERA. Sean Manaea: 59 K / 3.97 ERA. Different roster decisions — see individual verdicts.
Bare-stats comparison (narrative review pending).