MLB Daily DeltaWeek 12 · June 14, 2026
Engraved portrait of Mark Leiter Jr.
Mark Leiter Jr.
ATH·P
Buy Low high·0.89
Change to
Engraved portrait of Will Vest
Will Vest
DET·P
Buy Low high·0.90
Change to

Rest of Season Projection

MarkCategoryWill
34K 33
3.72ERA 3.70
1.24WHIP1.24
0–0W 1–2
4–7SV 1–2

Current Season

MarkCategoryWill
25K 20
5.47ERA 7.23
1.46WHIP 1.45
0W 1
4SV 1

What Each Player's System Trusts

Mark Leiter Jr.
  • xeraNOISEluck-free xERA 4.24 is right around league — a usable arm the ERA is hiding
  • babip_againstNOISEBABIP-against 0.351 elevated and unstable — bloating the ERA
Will Vest
  • xeraNOISEluck-free xERA 3.60 sits 0.50 below league — a real arm the ERA is hiding
  • babip_againstNOISEBABIP-against 0.357 elevated and unstable — bloating the ERA

Mark Leiter Jr.: 34 K / 3.72 ERA. Will Vest: 33 K / 3.70 ERA. Different roster decisions — see individual verdicts.

Bare-stats comparison (narrative review pending).

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