MLB Daily DeltaWeek 12 · June 15, 2026
Isaac Mattson
PIT·P
Hold med·0.50
Change to
Engraved portrait of Tim Herrin
Tim Herrin
CLE·P
Sell High high·0.79
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Rest of Season Projection

IsaacCategoryTim
28K 29
3.70ERA3.70
1.24WHIP1.24
0–0W0–0
0SV0

Current Season

IsaacCategoryTim
15K 16
4.12ERA 3.32
1.47WHIP 1.63
0W0
0SV0

What Each Player's System Trusts

Isaac Mattson
  • xeraNOISEskill near league average (6.33)
Tim Herrin
  • babip_againstNOISEBABIP-against 0.258 suppressed and unstable — flattering the ERA
  • xeraNOISEluck-free xERA 3.53 is 0.61 above the ERA — regression coming

Isaac Mattson: 28 K / 3.70 ERA. Tim Herrin: 29 K / 3.70 ERA. Different roster decisions — see individual verdicts.

Bare-stats comparison (narrative review pending).

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