MLB Daily DeltaWeek 12 · June 15, 2026
Engraved portrait of Luis Castillo
Luis Castillo
SEA·P
Sell med·0.73
Change to
Engraved portrait of Mitch Keller
Mitch Keller
PIT·P
Sell high·0.81
Change to

Rest of Season Projection

LuisCategoryMitch
94K 77
4.48ERA 4.67
1.35WHIP 1.38
2–4W 5–10
0SV0

Current Season

LuisCategoryMitch
56K 51
5.53ERA 4.35
1.45WHIP 1.17
2W 5
0SV0

What Each Player's System Trusts

Luis Castillo
  • xeraSIGNALstable xERA 4.69 +0.59 vs league with no luck excuse
Mitch Keller
  • xeraSIGNALstable xERA 4.98 +0.88 vs league with no luck excuse

Luis Castillo: 94 K / 4.48 ERA. Mitch Keller: 77 K / 4.67 ERA. Different roster decisions — see individual verdicts.

Bare-stats comparison (narrative review pending).

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