MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Cal Quantrill
Cal Quantrill
TEX · 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 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
▶
◀
WHIP
W
SV n/a

Cal Quantrill wins 1 (WHIP); Tim Mayza wins 1 (ERA); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Cal Quantrill
93.8
Tim Mayza
94.4
Swinging-Strike %lg 11.0% · higher = better
Cal Quantrill
9.4%
Tim Mayza
10.1%
Strikeout %lg 22.0% · higher = better
Cal Quantrill
18.3%
Tim Mayza
23.6%
Chase %lg 28.5% · higher = better
Cal Quantrill
30.1%
Tim Mayza
27.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Cal Quantrill
36.4%
Tim Mayza
45.2%
Barrel % Allowedlg 8.0% · lower = better
Cal Quantrill
7.3%
Tim Mayza
6.4%
xwOBA Allowedlg .315 · lower = better
Cal Quantrill
.303
Tim Mayza
.288
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
Cal Quantrill
2.024.31
lg xERA 4.10
now 2.53
3.80
Tim Mayza
2.024.31
lg xERA 4.10
now 3.62
3.47
WHIPlower is better
Cal Quantrill
.9001.34
now 1.22
1.20
Tim Mayza
.9001.34
now 0.99
1.24

Volume · rest of season
Strikeoutshigher is better
Cal Quantrill
4036.40
now 14
0
Tim Mayza
4036.40
now 26
0
Winshigher is better
Cal Quantrill
.0002.80
now 2
0–0
Tim Mayza
.0002.80
now 1
0–0

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

If you already own them — trade angle
Sell HighCal Quantrill — sell high. His value is peaking; good time to trade him.conf 0.95
BuyTim Mayza — buy.conf 0.79
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