MLB Daily DeltaWeek 11 · June 4, 2026
Engraved portrait of Martín Pérez
Martín Pérez
ATL·P
Sell High high·0.95
Change to
Engraved portrait of Walbert Ureña
Walbert Ureña
LAA·P
Sell High high·0.90
Change to

Rest of Season Projection

MartínCategoryWalbert
72K 87
4.24ERA 3.93
1.33WHIP 1.36
4–8W 3–6
0SV0

Current Season

MartínCategoryWalbert
42K 41
2.79ERA 2.44
1.06WHIP 1.38
3W 2
0SV0

What Each Player's System Trusts

Martín Pérez
  • babip_againstNOISEBABIP-against 0.228 suppressed and unstable — flattering the ERA
  • xeraSIGNALluck-free xERA 4.32 is 1.53 above the ERA — regression coming
Walbert Ureña
  • babip_againstNOISEBABIP-against 0.268 suppressed and unstable — flattering the ERA
  • xeraNOISEluck-free xERA 3.31 is 0.87 above the ERA — regression coming

Martín Pérez: 72 K / 4.24 ERA. Walbert Ureña: 87 K / 3.93 ERA. Different roster decisions — see individual verdicts.

Bare-stats comparison (narrative review pending).

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