MLB Daily DeltaWeek 12 · June 14, 2026
Isaac Mattson
PIT·P
Hold med·0.50
Change to
Engraved portrait of JoJo Romero
JoJo Romero
STL·P
Hold med·0.50
Change to

Rest of Season Projection

IsaacCategoryJoJo
29K 32
3.70ERA 3.76
1.24WHIP1.24
0–0W0–0
0SV0

Current Season

IsaacCategoryJoJo
15K 25
4.12ERA 2.70
1.47WHIP 1.16
0W0
0SV0

What Each Player's System Trusts

Isaac Mattson
  • xeraNOISEskill near league average (6.33)
JoJo Romero
  • xeraNOISEskill near league average (4.72)

Isaac Mattson: 29 K / 3.70 ERA. JoJo Romero: 32 K / 3.76 ERA. Different roster decisions — see individual verdicts.

Bare-stats comparison (narrative review pending).

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