MLB Daily DeltaWeek 15 · July 8, 2026
Matt Waldron
SD · P
Change to
Portrait of Roki Sasaki
Roki Sasaki
LAD · 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

Matt Waldron wins 2 (ERA, WHIP); Roki Sasaki wins 2 (K, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Matt Waldron
91.9
Roki Sasaki
97.5
Swinging-Strike %lg 11.0% · higher = better
Matt Waldron
8.8%
Roki Sasaki
13.9%
Strikeout %lg 22.0% · higher = better
Matt Waldron
20.0%
Roki Sasaki
22.8%
Chase %lg 28.5% · higher = better
Matt Waldron
31.7%
Roki Sasaki
31.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Matt Waldron
39.2%
Roki Sasaki
45.6%
Barrel % Allowedlg 8.0% · lower = better
Matt Waldron
7.6%
Roki Sasaki
12.9%
xwOBA Allowedlg .315 · lower = better
Matt Waldron
.306
Roki Sasaki
.336
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
Matt Waldron
2.338.25
lg xERA 4.10
now 8.49
4.09
Roki Sasaki
2.338.25
lg xERA 4.10
now 4.59
4.54
WHIPlower is better
Matt Waldron
1.141.87
now 1.71
1.30
Roki Sasaki
1.141.87
now 1.35
1.35

Volume · rest of season
Strikeoutshigher is better
Matt Waldron
4073.80
now 22
49
Roki Sasaki
4073.80
now 50
59
Winshigher is better
Matt Waldron
.0006.60
now 1
13
Roki Sasaki
.0006.60
now 3
25

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

If you already own them — trade angle
Buy LowMatt Waldron — buy low. The dip is a window to acquire.conf 0.90
SellRoki Sasaki — sell.conf 0.75
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