Rest of Season Projection
AndrewCategoryJack
54K ←47
3.70ERA3.70
1.24WHIP1.24
2–5W2–4
1–6SV →3–6
Current Season
AndrewCategoryJack
17K →33
4.02ERA ←5.46
1.28WHIP →1.21
1W →2
1SV →3
What Each Player's System Trusts
Andrew Alvarez
- xeraNOISEskill near league average (4.74)
Jack Perkins
- xeraNOISEluck-free xERA 3.65 sits 0.45 below league — a real arm the ERA is hiding
- babip_againstNOISEBABIP-against 0.333 elevated and unstable — bloating the ERA
Andrew Alvarez: 54 K / 3.70 ERA. Jack Perkins: 47 K / 3.70 ERA. Different roster decisions — see individual verdicts.
Bare-stats comparison (narrative review pending).