MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Jacob Lopez
Jacob Lopez
ATH · P
Change to
Portrait of Trevor McDonald
Trevor McDonald
SF · 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

Jacob Lopez wins 1 (ERA); Trevor McDonald wins 1 (WHIP); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jacob Lopez
90.3
Trevor McDonald
94.0
Swinging-Strike %lg 11.0% · higher = better
Jacob Lopez
11.1%
Trevor McDonald
9.5%
Strikeout %lg 22.0% · higher = better
Jacob Lopez
20.3%
Trevor McDonald
18.4%
Chase %lg 28.5% · higher = better
Jacob Lopez
27.3%
Trevor McDonald
29.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Jacob Lopez
31.5%
Trevor McDonald
37.8%
Barrel % Allowedlg 8.0% · lower = better
Jacob Lopez
6.9%
Trevor McDonald
4.1%
xwOBA Allowedlg .315 · lower = better
Jacob Lopez
.295
Trevor McDonald
.311
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
Jacob Lopez
2.417.99
lg xERA 4.10
now 6.75
3.65
Trevor McDonald
2.417.99
lg xERA 4.10
now 4.34
4.09
WHIPlower is better
Jacob Lopez
.9002.15
now 1.84
1.42
Trevor McDonald
.9002.15
now 1.07
1.35

Volume · rest of season
Strikeoutshigher is better
Jacob Lopez
4053.20
now 38
0
Trevor McDonald
4053.20
now 27
0
Winshigher is better
Jacob Lopez
.0005.60
now 4
0–0
Trevor McDonald
.0005.60
now 2
0–0

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

If you already own them — trade angle
BuyJacob Lopez — buy.conf 0.73
Hold · steadyTrevor McDonald — hold.conf 0.60
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