MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Greg Weissert
Greg Weissert
BOS · P
Change to
Portrait of Tony Santillan
Tony Santillan
CIN · 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

Greg Weissert wins 1 (ERA); Tony Santillan 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
Greg Weissert
94.1
Tony Santillan
94.5
Swinging-Strike %lg 11.0% · higher = better
Greg Weissert
11.7%
Tony Santillan
10.0%
Strikeout %lg 22.0% · higher = better
Greg Weissert
23.5%
Tony Santillan
18.8%
Chase %lg 28.5% · higher = better
Greg Weissert
32.7%
Tony Santillan
25.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Greg Weissert
30.4%
Tony Santillan
45.6%
Barrel % Allowedlg 8.0% · lower = better
Greg Weissert
5.3%
Tony Santillan
13.6%
xwOBA Allowedlg .315 · lower = better
Greg Weissert
.293
Tony Santillan
.385
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
Greg Weissert
2.826.34
lg xERA 4.10
now 4.24
3.60
Tony Santillan
2.826.34
lg xERA 4.10
now 5.56
3.77
WHIPlower is better
Greg Weissert
1.151.60
now 1.41
1.28
Tony Santillan
1.151.60
now 1.50
1.25

Volume · rest of season
Strikeoutshigher is better
Greg Weissert
4030.80
now 22
0
Tony Santillan
4030.80
now 22
0
Winshigher is better
Greg Weissert
.0001.48
now 0
0–0
Tony Santillan
.0001.48
now 1
0–0

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

If you already own them — trade angle
BuyGreg Weissert — buy.conf 0.75
Hold · wait & seeTony Santillan — hold.conf 0.50
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