MLB Daily DeltaWeek 20 · August 8, 2026
Portrait of Aroldis Chapman
Aroldis Chapman
BOS · P
Change to
Portrait of Gregory Soto
Gregory Soto
PIT · P
Change to
Who's more valuable, rest of season

Aroldis Chapman.

He projects to help you in more roto categories the rest of the way — strikeouts, WHIP, and saves. Gregory Soto’s box score looks better right now, but the luck-stripped projection flips it.

Head-to-head
K
ERA
WHIP
W
SV

Aroldis Chapman wins 3 categories (K, WHIP, SV); Gregory Soto wins 2 (ERA, W).

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Aroldis Chapman
96.9
Gregory Soto
97.1
Swinging-Strike %lg 11.0% · higher = better
Aroldis Chapman
15.7%
Gregory Soto
12.1%
Strikeout %lg 22.0% · higher = better
Aroldis Chapman
30.9%
Gregory Soto
28.9%
Chase %lg 28.5% · higher = better
Aroldis Chapman
34.8%
Gregory Soto
29.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Aroldis Chapman
37.2%
Gregory Soto
36.1%
Barrel % Allowedlg 8.0% · lower = better
Aroldis Chapman
8.5%
Gregory Soto
5.0%
xwOBA Allowedlg .315 · lower = better
Aroldis Chapman
.259
Gregory Soto
.274
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
Aroldis Chapman
24.99
lg xERA 4.10
now 0.48
3.70
Gregory Soto
24.99
lg xERA 4.10
now 1.95
3.09
WHIPlower is better
Aroldis Chapman
.9001.47
now 0.86
1.24
Gregory Soto
.9001.47
now 0.76
1.27

Volume · rest of season
Strikeoutshigher is better
Aroldis Chapman
4038.40
now 25
21
Gregory Soto
4038.40
now 32
16
Winshigher is better
Aroldis Chapman
.0005.60
now 0
00
Gregory Soto
.0005.60
now 4
13
Saveshigher is better
Aroldis Chapman
.00015.60
now 12
612
Gregory Soto
.00015.60
now 7
35
If you already own them — trade angle
Hold · wait & seeAroldis Chapman — hold.conf 0.50
BuyGregory Soto — buy.conf 0.90
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