MLB Daily DeltaWeek 17 · July 20, 2026
Isaac Mattson
PIT · P
Change to
Portrait of Sean Newcomb
Sean Newcomb
CWS · 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

Isaac Mattson wins 2 (ERA, WHIP); Sean Newcomb wins 2 (K, SV); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Isaac Mattson
94.0
Sean Newcomb
94.6
Swinging-Strike %lg 11.0% · higher = better
Isaac Mattson
10.7%
Sean Newcomb
11.0%
Strikeout %lg 22.0% · higher = better
Isaac Mattson
20.3%
Sean Newcomb
23.9%
Chase %lg 28.5% · higher = better
Isaac Mattson
27.0%
Sean Newcomb
27.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Isaac Mattson
46.3%
Sean Newcomb
35.9%
Barrel % Allowedlg 8.0% · lower = better
Isaac Mattson
12.6%
Sean Newcomb
5.5%
xwOBA Allowedlg .315 · lower = better
Isaac Mattson
.368
Sean Newcomb
.303
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
Isaac Mattson
2.024.72
lg xERA 4.10
now 4.12
3.70
Sean Newcomb
2.024.72
lg xERA 4.10
now 2.62
3.78
WHIPlower is better
Isaac Mattson
.9201.63
now 1.47
1.24
Sean Newcomb
.9201.63
now 1.08
1.29

Volume · rest of season
Strikeoutshigher is better
Isaac Mattson
4037.40
now 15
15
Sean Newcomb
4037.40
now 31
22
Winshigher is better
Isaac Mattson
.000.480
now 0
00
Sean Newcomb
.000.480
now 0
00
Saveshigher is better
Isaac Mattson
.0002.40
now 0
0
Sean Newcomb
.0002.40
now 1
01
If you already own them — trade angle
Hold · wait & seeIsaac Mattson — hold.conf 0.50
Sell HighSean Newcomb — sell high. His value is peaking; good time to trade him.conf 0.95
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