MLB Daily DeltaWeek 18 · July 23, 2026
Portrait of Griffin Jax
Griffin Jax
TB · P
Change to
Portrait of Wandy Peralta
Wandy Peralta
SD · P
Change to
Who's more valuable, rest of season

Griffin Jax.

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

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

Griffin Jax wins 3 categories (K, WHIP, W); Wandy Peralta wins 1 (ERA); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Griffin Jax
96.2
Wandy Peralta
96.4
Swinging-Strike %lg 11.0% · higher = better
Griffin Jax
14.9%
Wandy Peralta
10.9%
Strikeout %lg 22.0% · higher = better
Griffin Jax
24.7%
Wandy Peralta
15.5%
Chase %lg 28.5% · higher = better
Griffin Jax
33.7%
Wandy Peralta
32.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Griffin Jax
41.1%
Wandy Peralta
33.6%
Barrel % Allowedlg 8.0% · lower = better
Griffin Jax
10.1%
Wandy Peralta
3.9%
xwOBA Allowedlg .315 · lower = better
Griffin Jax
.351
Wandy Peralta
.311
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
25.57
lg xERA 4.10
now 4.76
4.75
Wandy Peralta
25.57
lg xERA 4.10
now 2.73
3.93
WHIPlower is better
Griffin Jax
1.201.55
now 1.47
1.28
Wandy Peralta
1.201.55
now 1.44
1.42

Volume · rest of season
Strikeoutshigher is better
Griffin Jax
4038
now 32
25
Wandy Peralta
4038
now 19
17
Winshigher is better
Griffin Jax
.0001.48
now 1
01
Wandy Peralta
.0001.48
now 0
00

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

If you already own them — trade angle
SellGriffin Jax — sell.conf 0.90
Sell HighWandy Peralta — sell high. His value is peaking; good time to trade him.conf 0.95
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