MLB Daily DeltaWeek 12 · June 13, 2026
Engraved portrait of David Peterson
David Peterson
NYM·P
Sell med·0.73
Change to
Engraved portrait of Robbie Ray
Robbie Ray
SF·P
Sell High high·0.93
Change to

Rest of Season Projection

DavidCategoryRobbie
90K 101
4.50ERA 4.77
1.43WHIP 1.42
3–6W3–6
0SV0

Current Season

DavidCategoryRobbie
56K 59
5.18ERA 4.45
1.59WHIP 1.40
3W3
1SV 0

What Each Player's System Trusts

David Peterson
  • xeraSIGNALstable xERA 4.71 +0.61 vs league with no luck excuse
Robbie Ray
  • babip_againstNOISEBABIP-against 0.265 suppressed and unstable — flattering the ERA
  • xeraSIGNALluck-free xERA 5.13 is 0.71 above the ERA — regression coming

David Peterson: 92 K / 4.49 ERA. Robbie Ray: 102 K / 4.76 ERA. Different roster decisions — see individual verdicts.

Bare-stats comparison (narrative review pending).

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