MLB Daily DeltaWeek 18 · July 28, 2026
Jake Irvin
WSH · P
Change to
Portrait of Tyler Mahle
Tyler Mahle
SF · 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

Jake Irvin 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
Jake Irvin
92.9
Tyler Mahle
92.5
Swinging-Strike %lg 11.0% · higher = better
Jake Irvin
11.8%
Tyler Mahle
9.7%
Strikeout %lg 22.0% · higher = better
Jake Irvin
25.4%
Tyler Mahle
21.4%
Chase %lg 28.5% · higher = better
Jake Irvin
25.0%
Tyler Mahle
29.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Jake Irvin
45.8%
Tyler Mahle
35.9%
Barrel % Allowedlg 8.0% · lower = better
Jake Irvin
12.0%
Tyler Mahle
7.3%
xwOBA Allowedlg .315 · lower = better
Jake Irvin
.349
Tyler Mahle
.318
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
Jake Irvin
3.456.78
lg xERA 4.10
now 5.23
4.83
Tyler Mahle
3.456.78
lg xERA 4.10
now 6.04
4.19
WHIPlower is better
Jake Irvin
1.251.62
now 1.35
1.33
Tyler Mahle
1.251.62
now 1.54
1.39

Volume · rest of season
Strikeoutshigher is better
Jake Irvin
4063.60
now 58
44
Tyler Mahle
4063.60
now 57
49
Winshigher is better
Jake Irvin
.5202.48
now 2
12
Tyler Mahle
.5202.48
now 1
11

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

If you already own them — trade angle
SellJake Irvin — sell.conf 0.89
Buy LowTyler Mahle — buy low. The dip is a window to acquire.conf 0.90
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