MLB Daily DeltaWeek 12 · June 13, 2026
Engraved portrait of Mitch Keller
Mitch Keller
PIT·P
Sell high·0.81
Change to
Engraved portrait of Tyler Mahle
Tyler Mahle
SF·P
Buy Low high·0.90
Change to

Rest of Season Projection

MitchCategoryTyler
80K 94
4.66ERA 4.05
1.38WHIP1.38
5–10W 1–2
0SV0

Current Season

MitchCategoryTyler
51K 57
4.35ERA 6.04
1.17WHIP 1.54
5W 1
0SV0

What Each Player's System Trusts

Mitch Keller
  • xeraSIGNALstable xERA 4.96 +0.86 vs league with no luck excuse
Tyler Mahle
  • xeraSIGNALluck-free xERA 4.05 sits 0.05 below league — a real arm the ERA is hiding
  • babip_againstNOISEBABIP-against 0.335 elevated and unstable — bloating the ERA

Mitch Keller: 80 K / 4.66 ERA. Tyler Mahle: 94 K / 4.05 ERA. Different roster decisions — see individual verdicts.

Bare-stats comparison (narrative review pending).

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