MLB Daily DeltaWeek 19 · July 31, 2026
Portrait of Caleb Thielbar
Caleb Thielbar
CHC · 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); Caleb Thielbar wins 1 (W).

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Caleb Thielbar
93.3
Mason Miller
101.4
Swinging-Strike %lg 11.0% · higher = better
Caleb Thielbar
15.3%
Mason Miller
23.0%
Strikeout %lg 22.0% · higher = better
Caleb Thielbar
31.3%
Mason Miller
49.4%
Chase %lg 28.5% · higher = better
Caleb Thielbar
39.3%
Mason Miller
38.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Caleb Thielbar
40.0%
Mason Miller
26.8%
Barrel % Allowedlg 8.0% · lower = better
Caleb Thielbar
13.8%
Mason Miller
2.8%
xwOBA Allowedlg .315 · lower = better
Caleb Thielbar
.316
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
Caleb Thielbar
24.89
lg xERA 4.10
now 2.84
3.70
Mason Miller
24.89
lg xERA 4.10
now 0.72
3.59
WHIPlower is better
Caleb Thielbar
.9001.54
now 1.34
1.24
Mason Miller
.9001.54
now 0.84
1.23

Volume · rest of season
Strikeoutshigher is better
Caleb Thielbar
4062.60
now 15
16
Mason Miller
4062.60
now 49
31
Winshigher is better
Caleb Thielbar
.0004.20
now 2
13
Mason Miller
.0004.20
now 1
01
Saveshigher is better
Caleb Thielbar
.00023.40
now 2
14
Mason Miller
.00023.40
now 17
815
If you already own them — trade angle
Hold · wait & seeCaleb Thielbar — hold.conf 0.50
Hold · wait & seeMason Miller — hold.conf 0.50
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