MLB Daily DeltaWeek 13 · June 19, 2026
Chase Petty
CIN · P
Change to
Portrait of Zack Littell
Zack Littell
WSH · 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

Chase Petty wins 2 (ERA, WHIP); Zack Littell wins 2 (K, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Chase Petty
97.1
Zack Littell
91.7
Swinging-Strike %lg 11.0% · higher = better
Chase Petty
10.5%
Zack Littell
7.4%
Strikeout %lg 22.0% · higher = better
Chase Petty
6.3%
Zack Littell
13.1%
Chase %lg 28.5% · higher = better
Chase Petty
32.0%
Zack Littell
27.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Chase Petty
35.2%
Zack Littell
45.5%
Barrel % Allowedlg 8.0% · lower = better
Chase Petty
9.3%
Zack Littell
11.4%
xwOBA Allowedlg .315 · lower = better
Chase Petty
.363
Zack Littell
.388
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
Chase Petty
3.207.25
lg xERA 4.10
now 6.35
4.10
Zack Littell
3.207.25
lg xERA 4.10
now 5.01
5.69
WHIPlower is better
Chase Petty
1.171.44
now 1.24
1.30
Zack Littell
1.171.44
now 1.37
1.36

Volume · rest of season
Strikeoutshigher is better
Chase Petty
4081.80
now 2
16
Zack Littell
4081.80
now 35
59
Winshigher is better
Chase Petty
.00014
now 0
00
Zack Littell
.00014
now 5
510

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

If you already own them — trade angle
Sell HighChase Petty — sell high. His value is peaking; good time to trade him.conf 0.90
Sell HighZack Littell — sell high. His value is peaking; good time to trade him.conf 0.95
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