MLB Daily DeltaWeek 19 · July 31, 2026
Portrait of Griffin Jax
Griffin Jax
TB · P
Change to
Portrait of Mason Miller
Mason Miller
SD · P
Change to
Who's more valuable, rest of season

Mason Miller.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, WHIP, and saves.

Head-to-head
K
ERA
WHIP
W
SV

Mason Miller wins 4 categories (K, ERA, WHIP, SV); Griffin Jax wins 0 (none); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Griffin Jax
96.1
Mason Miller
101.4
Swinging-Strike %lg 11.0% · higher = better
Griffin Jax
15.1%
Mason Miller
23.0%
Strikeout %lg 22.0% · higher = better
Griffin Jax
25.7%
Mason Miller
49.4%
Chase %lg 28.5% · higher = better
Griffin Jax
34.9%
Mason Miller
38.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Griffin Jax
39.7%
Mason Miller
26.8%
Barrel % Allowedlg 8.0% · lower = better
Griffin Jax
9.8%
Mason Miller
2.8%
xwOBA Allowedlg .315 · lower = better
Griffin Jax
.333
Mason Miller
.176
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
Griffin Jax
26.38
lg xERA 4.10
now 4.76
4.36
Mason Miller
26.38
lg xERA 4.10
now 0.72
3.59
WHIPlower is better
Griffin Jax
.9001.72
now 1.47
1.27
Mason Miller
.9001.72
now 0.84
1.23

Volume · rest of season
Strikeoutshigher is better
Griffin Jax
4059.80
now 32
22
Mason Miller
4059.80
now 49
31
Winshigher is better
Griffin Jax
.0001.48
now 1
01
Mason Miller
.0001.48
now 1
01
Saveshigher is better
Griffin Jax
.00023.80
now 0
0
Mason Miller
.00023.80
now 17
815
If you already own them — trade angle
SellGriffin Jax — sell.conf 0.74
Hold · wait & seeMason Miller — hold.conf 0.50
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