MLB Daily DeltaWeek 19 · August 5, 2026
Garrett Whitlock
BOS · P
Change to
Portrait of Tim Mayza
Tim Mayza
PHI · 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

Garrett Whitlock wins 2 (K, W); Tim Mayza wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Garrett Whitlock
94.9
Tim Mayza
94.7
Swinging-Strike %lg 11.0% · higher = better
Garrett Whitlock
16.2%
Tim Mayza
10.8%
Strikeout %lg 22.0% · higher = better
Garrett Whitlock
27.6%
Tim Mayza
24.9%
Chase %lg 28.5% · higher = better
Garrett Whitlock
41.2%
Tim Mayza
27.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Garrett Whitlock
34.9%
Tim Mayza
45.4%
Barrel % Allowedlg 8.0% · lower = better
Garrett Whitlock
3.8%
Tim Mayza
7.1%
xwOBA Allowedlg .315 · lower = better
Garrett Whitlock
.260
Tim Mayza
.284
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
Garrett Whitlock
2.793.95
lg xERA 4.10
now 3.05
3.69
Tim Mayza
2.793.95
lg xERA 4.10
now 3.62
3.33
WHIPlower is better
Garrett Whitlock
.9001.34
now 1.11
1.24
Tim Mayza
.9001.34
now 0.99
1.20

Volume · rest of season
Strikeoutshigher is better
Garrett Whitlock
4031.60
now 26
18
Tim Mayza
4031.60
now 26
15
Winshigher is better
Garrett Whitlock
.0004.20
now 3
13
Tim Mayza
.0004.20
now 1
01

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

If you already own them — trade angle
Sell HighGarrett Whitlock — sell high. His value is peaking; good time to trade him.conf 0.87
BuyTim Mayza — buy.conf 0.83
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