MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Caleb Thielbar
Caleb Thielbar
CHC · P
Change to
Portrait of Griffin Jax
Griffin Jax
TB · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
▶
◀
WHIP
W
SV n/a

Caleb Thielbar wins 1 (WHIP); Griffin Jax wins 1 (ERA); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Caleb Thielbar
93.3
Griffin Jax
95.9
Swinging-Strike %lg 11.0% · higher = better
Caleb Thielbar
15.0%
Griffin Jax
14.5%
Strikeout %lg 22.0% · higher = better
Caleb Thielbar
28.4%
Griffin Jax
25.6%
Chase %lg 28.5% · higher = better
Caleb Thielbar
35.8%
Griffin Jax
35.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Caleb Thielbar
38.3%
Griffin Jax
39.7%
Barrel % Allowedlg 8.0% · lower = better
Caleb Thielbar
10.5%
Griffin Jax
8.8%
xwOBA Allowedlg .315 · lower = better
Caleb Thielbar
.328
Griffin Jax
.320
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
Caleb Thielbar
2.075.53
lg xERA 4.10
now 2.84
4.29
Griffin Jax
2.075.53
lg xERA 4.10
now 4.76
4.12
WHIPlower is better
Caleb Thielbar
1.131.57
now 1.34
1.23
Griffin Jax
1.131.57
now 1.47
1.25

Volume · rest of season
Strikeoutshigher is better
Caleb Thielbar
4044.80
now 15
0
Griffin Jax
4044.80
now 32
0
Winshigher is better
Caleb Thielbar
.0002.80
now 2
0–0
Griffin Jax
.0002.80
now 1
0–0

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

If you already own them — trade angle
SellCaleb Thielbar — sell.conf 0.70
Hold · leans sellGriffin Jax — hold.conf 0.60
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