MLB Daily DeltaWeek 13 · June 22, 2026
Portrait of Grayson Rodriguez
Grayson Rodriguez
LAA · P
Change to
Portrait of Spencer Arrighetti
Spencer Arrighetti
HOU · 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

Grayson Rodriguez wins 2 (ERA, WHIP); Spencer Arrighetti wins 2 (K, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Grayson Rodriguez
96.4
Spencer Arrighetti
92.5
Swinging-Strike %lg 11.0% · higher = better
Grayson Rodriguez
9.7%
Spencer Arrighetti
11.2%
Strikeout %lg 22.0% · higher = better
Grayson Rodriguez
19.5%
Spencer Arrighetti
23.2%
Chase %lg 28.5% · higher = better
Grayson Rodriguez
21.2%
Spencer Arrighetti
28.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Grayson Rodriguez
51.8%
Spencer Arrighetti
30.8%
Barrel % Allowedlg 8.0% · lower = better
Grayson Rodriguez
10.8%
Spencer Arrighetti
6.6%
xwOBA Allowedlg .315 · lower = better
Grayson Rodriguez
.400
Spencer Arrighetti
.331
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
Grayson Rodriguez
28.25
lg xERA 4.10
now 7.53
4.10
Spencer Arrighetti
28.25
lg xERA 4.10
now 1.34
4.40
WHIPlower is better
Grayson Rodriguez
.9101.89
now 1.67
1.30
Spencer Arrighetti
.9101.89
now 1.13
1.37

Volume · rest of season
Strikeoutshigher is better
Grayson Rodriguez
4099.40
now 14
72
Spencer Arrighetti
4099.40
now 43
75
Winshigher is better
Grayson Rodriguez
.00018
now 2
612
Spencer Arrighetti
.00018
now 7
817

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

If you already own them — trade angle
Hold · wait & seeGrayson Rodriguez — hold.conf 0.55
Sell HighSpencer Arrighetti — sell high. His value is peaking; good time to trade him.conf 0.95
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