MLB Daily DeltaWeek 19 · August 5, 2026
Jose Quintana
COL · P
Change to
Portrait of Mitch Keller
Mitch Keller
PIT · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22. Take whoever fills a bigger need.

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

Jose Quintana wins 2 (ERA, WHIP); Mitch Keller wins 2 (K, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jose Quintana
89.7
Mitch Keller
93.3
Swinging-Strike %lg 11.0% · higher = better
Jose Quintana
9.9%
Mitch Keller
9.7%
Strikeout %lg 22.0% · higher = better
Jose Quintana
11.0%
Mitch Keller
17.7%
Chase %lg 28.5% · higher = better
Jose Quintana
32.0%
Mitch Keller
29.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Jose Quintana
32.9%
Mitch Keller
42.3%
Barrel % Allowedlg 8.0% · lower = better
Jose Quintana
8.4%
Mitch Keller
7.4%
xwOBA Allowedlg .315 · lower = better
Jose Quintana
.343
Mitch Keller
.355
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
Jose Quintana
3.885.67
lg xERA 4.10
now 5.27
4.28
Mitch Keller
3.885.67
lg xERA 4.10
now 4.35
4.98
WHIPlower is better
Jose Quintana
1.031.65
now 1.51
1.36
Mitch Keller
1.031.65
now 1.17
1.38

Volume · rest of season
Strikeoutshigher is better
Jose Quintana
4063.40
now 20
26
Mitch Keller
4063.40
now 51
34
Winshigher is better
Jose Quintana
.0006.60
now 2
12
Mitch Keller
.0006.60
now 5
24

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

If you already own them — trade angle
Hold · wait & seeJose Quintana — hold.conf 0.50
SellMitch Keller — sell.conf 0.90
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