MLB Daily DeltaWeek 19 · August 5, 2026
Brandon Williamson
CIN · P
Change to
Portrait of Tyler Mahle
Tyler Mahle
ATL · 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

Brandon Williamson wins 2 (WHIP, W); Tyler Mahle wins 2 (K, ERA); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Brandon Williamson
92.5
Tyler Mahle
92.6
Swinging-Strike %lg 11.0% · higher = better
Brandon Williamson
10.4%
Tyler Mahle
9.7%
Strikeout %lg 22.0% · higher = better
Brandon Williamson
14.8%
Tyler Mahle
22.0%
Chase %lg 28.5% · higher = better
Brandon Williamson
24.6%
Tyler Mahle
28.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Brandon Williamson
41.9%
Tyler Mahle
36.6%
Barrel % Allowedlg 8.0% · lower = better
Brandon Williamson
10.5%
Tyler Mahle
6.9%
xwOBA Allowedlg .315 · lower = better
Brandon Williamson
.389
Tyler Mahle
.312
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
Brandon Williamson
3.276.92
lg xERA 4.10
now 6.11
4.29
Tyler Mahle
3.276.92
lg xERA 4.10
now 6.04
4.08
WHIPlower is better
Brandon Williamson
1.221.76
now 1.64
1.34
Tyler Mahle
1.221.76
now 1.54
1.38

Volume · rest of season
Strikeoutshigher is better
Brandon Williamson
4072.20
now 19
28
Tyler Mahle
4072.20
now 57
41
Winshigher is better
Brandon Williamson
.0004.20
now 2
23
Tyler Mahle
.0004.20
now 1
01

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

If you already own them — trade angle
Sell HighBrandon Williamson — sell high. His value is peaking; good time to trade him.conf 0.82
Hold · steadyTyler Mahle — hold.conf 0.60
Tweet