MLB Daily DeltaWeek 13 · June 22, 2026
Portrait of Danny Coulombe
Danny Coulombe
BOS · P
Change to
Isaac Mattson
PIT · P
Change to
Who's more valuable, rest of season

Danny Coulombe.

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

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

Danny Coulombe wins 1 categories (K); Isaac Mattson wins 0 (none); 3 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Danny Coulombe
89.6
Isaac Mattson
93.8
Swinging-Strike %lg 11.0% · higher = better
Danny Coulombe
8.3%
Isaac Mattson
10.0%
Strikeout %lg 22.0% · higher = better
Danny Coulombe
14.3%
Isaac Mattson
18.6%
Chase %lg 28.5% · higher = better
Danny Coulombe
25.9%
Isaac Mattson
24.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Danny Coulombe
19.6%
Isaac Mattson
48.5%
Barrel % Allowedlg 8.0% · lower = better
Danny Coulombe
2.0%
Isaac Mattson
12.1%
xwOBA Allowedlg .315 · lower = better
Danny Coulombe
.298
Isaac Mattson
.378
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
Danny Coulombe
2.567.69
lg xERA 4.10
now 6.55
3.70
Isaac Mattson
2.567.69
lg xERA 4.10
now 4.12
3.70
WHIPlower is better
Danny Coulombe
1.151.56
now 1.45
1.24
Isaac Mattson
1.151.56
now 1.47
1.24

Volume · rest of season
Strikeoutshigher is better
Danny Coulombe
4033.20
now 8
26
Isaac Mattson
4033.20
now 15
24
Winshigher is better
Danny Coulombe
.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
Hold · wait & seeDanny Coulombe — hold.conf 0.50
Hold · wait & seeIsaac Mattson — hold.conf 0.50
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