MLB Daily DeltaWeek 13 · June 19, 2026
Portrait of Ethan Roberts
Ethan Roberts
CHC · P
Change to
Portrait of Mason Black
Mason Black
KC · P
Change to
Who's more valuable, rest of season

Mason Black.

He projects to help you in more roto categories the rest of the way — strikeouts. Ethan Roberts’s box score looks better right now, but it’s built on luck that won’t hold.

Head-to-head
K
ERA
WHIP
W
SV n/a

Mason Black wins 1 categories (K); Ethan Roberts wins 0 (none); 3 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Ethan Roberts
93.7
Mason Black
94.2
Swinging-Strike %lg 11.0% · higher = better
Ethan Roberts
10.4%
Mason Black
9.9%
Strikeout %lg 22.0% · higher = better
Ethan Roberts
17.6%
Mason Black
21.1%
Chase %lg 28.5% · higher = better
Ethan Roberts
26.1%
Mason Black
26.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Ethan Roberts
45.9%
Mason Black
51.1%
Barrel % Allowedlg 8.0% · lower = better
Ethan Roberts
3.3%
Mason Black
15.6%
xwOBA Allowedlg .315 · lower = better
Ethan Roberts
.340
Mason Black
.403
stabilized — trust it · small sample yet · dashed = league avg · right = better
05

The tape

Rest-of-season projection · bold = leads
rest-of-season projection current season projection range
Rate · earned-run quality
ERAlower is better
Ethan Roberts
24.50
lg xERA 4.10
now 1.69
3.70
Mason Black
24.50
lg xERA 4.10
now 2.08
3.70
WHIPlower is better
Ethan Roberts
.9001.70
now 1.00
1.24
Mason Black
.9001.70
now 1.50
1.24

Volume · rest of season
Strikeoutshigher is better
Ethan Roberts
4035.60
now 12
27
Mason Black
4035.60
now 9
28
Winshigher is better
Ethan Roberts
.000.480
now 0
00
Mason Black
.000.480
now 0
00

SV — not applicable. Both pitch out of the rotation.

If you already own them — trade angle
Sell HighEthan Roberts — sell high. His value is peaking; good time to trade him.conf 0.95
Hold · wait & seeMason Black — hold.conf 0.50
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