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

Too close to call.

They split your categories 22. Take whoever fills a bigger need.

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

Griffin Jax wins 2 (K, W); Riley Cornelio wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Griffin Jax
96.1
Riley Cornelio
96.4
Swinging-Strike %lg 11.0% · higher = better
Griffin Jax
15.1%
Riley Cornelio
16.2%
Strikeout %lg 22.0% · higher = better
Griffin Jax
25.7%
Riley Cornelio
19.5%
Chase %lg 28.5% · higher = better
Griffin Jax
34.9%
Riley Cornelio
32.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Griffin Jax
39.7%
Riley Cornelio
43.4%
Barrel % Allowedlg 8.0% · lower = better
Griffin Jax
9.8%
Riley Cornelio
11.3%
xwOBA Allowedlg .315 · lower = better
Griffin Jax
.333
Riley Cornelio
.321
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
2.487.97
lg xERA 4.10
now 4.76
4.36
Riley Cornelio
2.487.97
lg xERA 4.10
now 6.75
3.70
WHIPlower is better
Griffin Jax
.9002.55
now 1.47
1.27
Riley Cornelio
.9002.55
now 2.75
1.24

Volume · rest of season
Strikeoutshigher is better
Griffin Jax
4044
now 32
22
Riley Cornelio
4044
now 2
10
Winshigher is better
Griffin Jax
.0001.48
now 1
01
Riley Cornelio
.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 0.74
Hold · wait & seeRiley Cornelio — hold.conf 0.50
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