MLB Daily DeltaWeek 12 · June 13, 2026
Engraved portrait of Spencer Arrighetti
Spencer Arrighetti
HOU·P
Sell High high·0.95
Change to
Engraved portrait of Trevor McDonald
Trevor McDonald
SF·P
Hold med·0.50
Change to

Rest of Season Projection

SpencerCategoryTrevor
87K 74
4.54ERA 4.07
1.44WHIP 1.30
9–19W 4–8
0SV0

Current Season

SpencerCategoryTrevor
43K 27
1.34ERA 4.34
1.13WHIP 1.07
7W 2
0SV0

What Each Player's System Trusts

Spencer Arrighetti
  • babip_againstNOISEBABIP-against 0.234 suppressed and unstable — flattering the ERA
  • xeraSIGNALluck-free xERA 4.77 is 2.56 above the ERA — regression coming
Trevor McDonald
  • xeraNOISEskill near league average (3.75)

Spencer Arrighetti: 88 K / 4.53 ERA. Trevor McDonald: 75 K / 4.07 ERA. Different roster decisions — see individual verdicts.

Bare-stats comparison (narrative review pending).

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