MLB Daily DeltaWeek 25 · September 10, 2026
Cam Booser
TB · P
Change to
Isaac Mattson
PIT · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 00, 4 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV n/a

Cam Booser wins 0 (none); Isaac Mattson wins 0 (none); 4 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Cam Booser
95.7
Isaac Mattson
94.2
Swinging-Strike %lg 11.0% · higher = better
Cam Booser
15.2%
Isaac Mattson
10.4%
Strikeout %lg 22.0% · higher = better
Cam Booser
29.5%
Isaac Mattson
20.5%
Chase %lg 28.5% · higher = better
Cam Booser
33.9%
Isaac Mattson
27.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Cam Booser
41.4%
Isaac Mattson
52.1%
Barrel % Allowedlg 8.0% · lower = better
Cam Booser
6.9%
Isaac Mattson
12.4%
xwOBA Allowedlg .315 · lower = better
Cam Booser
.267
Isaac Mattson
.374
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
Cam Booser
25.77
lg xERA 4.10
now 0.00
3.70
Isaac Mattson
25.77
lg xERA 4.10
now 4.12
3.70
WHIPlower is better
Cam Booser
.9001.86
now 0.50
1.24
Isaac Mattson
.9001.86
now 1.47
1.24

Volume · rest of season
Strikeoutshigher is better
Cam Booser
4020.60
now 1
3
Isaac Mattson
4020.60
now 15
3
Winshigher is better
Cam Booser
.000.480
now 0
00
Isaac Mattson
.000.480
now 0
00

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

If you already own them — trade angle
Sell HighCam Booser — sell high. His value is peaking; good time to trade him.conf 0.79
Hold · wait & seeIsaac Mattson — hold.conf 0.50
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