MLB Daily DeltaWeek 18 · July 23, 2026
Portrait of Ryan Rolison
Ryan Rolison
CHC · 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 22, 1 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV

Ryan Rolison wins 2 (ERA, W); Tony Santillan wins 2 (K, SV); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Ryan Rolison
94.6
Tony Santillan
94.6
Swinging-Strike %lg 11.0% · higher = better
Ryan Rolison
9.6%
Tony Santillan
10.3%
Strikeout %lg 22.0% · higher = better
Ryan Rolison
24.3%
Tony Santillan
20.9%
Chase %lg 28.5% · higher = better
Ryan Rolison
25.3%
Tony Santillan
28.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Ryan Rolison
42.7%
Tony Santillan
46.7%
Barrel % Allowedlg 8.0% · lower = better
Ryan Rolison
6.1%
Tony Santillan
10.9%
xwOBA Allowedlg .315 · lower = better
Ryan Rolison
.316
Tony Santillan
.348
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
Ryan Rolison
26.63
lg xERA 4.10
now 2.89
3.70
Tony Santillan
26.63
lg xERA 4.10
now 5.56
3.74
WHIPlower is better
Ryan Rolison
1.141.60
now 1.39
1.24
Tony Santillan
1.141.60
now 1.50
1.24

Volume · rest of season
Strikeoutshigher is better
Ryan Rolison
4027.60
now 16
14
Tony Santillan
4027.60
now 22
22
Winshigher is better
Ryan Rolison
.0006.60
now 3
25
Tony Santillan
.0006.60
now 1
11
Saveshigher is better
Ryan Rolison
.0003.40
now 0
0
Tony Santillan
.0003.40
now 2
12
If you already own them — trade angle
Hold · wait & seeRyan Rolison — hold.conf 0.50
Hold · wait & seeTony Santillan — hold.conf 0.50
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