MLB Daily DeltaWeek 19 · August 5, 2026
Chase Petty
CIN · P
Change to
Portrait of Grayson Rodriguez
Grayson Rodriguez
LAA · 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); Grayson Rodriguez 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
96.9
Grayson Rodriguez
96.1
Swinging-Strike %lg 11.0% · higher = better
Chase Petty
9.1%
Grayson Rodriguez
10.7%
Strikeout %lg 22.0% · higher = better
Chase Petty
10.8%
Grayson Rodriguez
17.3%
Chase %lg 28.5% · higher = better
Chase Petty
29.2%
Grayson Rodriguez
25.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Chase Petty
36.2%
Grayson Rodriguez
52.4%
Barrel % Allowedlg 8.0% · lower = better
Chase Petty
7.6%
Grayson Rodriguez
11.6%
xwOBA Allowedlg .315 · lower = better
Chase Petty
.350
Grayson Rodriguez
.414
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
2.738.25
lg xERA 4.10
now 6.35
4.10
Grayson Rodriguez
2.738.25
lg xERA 4.10
now 7.53
6.59
WHIPlower is better
Chase Petty
1.071.84
now 1.24
1.30
Grayson Rodriguez
1.071.84
now 1.67
1.47

Volume · rest of season
Strikeoutshigher is better
Chase Petty
4053.80
now 2
6
Grayson Rodriguez
4053.80
now 14
39
Winshigher is better
Chase Petty
.0008.40
now 0
00
Grayson Rodriguez
.0008.40
now 2
36

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 0.86
SellGrayson Rodriguez — sell.conf 0.90
Tweet