MLB Daily DeltaWeek 11 · June 4, 2026
Engraved portrait of Mason Miller
Mason Miller
SD·P
Hold med·0.50
Change to
Engraved portrait of Riley O'Brien
Riley O'Brien
STL·P
Hold med·0.50
Change to

Rest of Season Projection

MasonCategoryRiley
69K 41
3.58ERA 3.70
1.23WHIP1.23
1–2W 3–7
19–36SV 16–30

Current Season

MasonCategoryRiley
49K 27
0.72ERA 3.20
0.84WHIP 0.99
1W 3
17SV 14

What Each Player's System Trusts

Mason Miller
  • xeraNOISEskill near league average (1.10)
Riley O'Brien
  • xeraNOISEskill near league average (3.79)

Mason Miller: 69 K / 3.58 ERA. Riley O'Brien: 41 K / 3.70 ERA. Different roster decisions — see individual verdicts.

Bare-stats comparison (narrative review pending).

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