MLB Daily DeltaWeek 25 · September 11, 2026
Portrait of Eduardo Rodriguez
Eduardo Rodriguez
AZ · P
Change to
Portrait of Spencer Arrighetti
Spencer Arrighetti
TOR · 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

Eduardo 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
Eduardo Rodriguez
92.0
Spencer Arrighetti
92.4
Swinging-Strike %lg 11.0% · higher = better
Eduardo Rodriguez
10.3%
Spencer Arrighetti
10.7%
Strikeout %lg 22.0% · higher = better
Eduardo Rodriguez
18.0%
Spencer Arrighetti
21.8%
Chase %lg 28.5% · higher = better
Eduardo Rodriguez
30.1%
Spencer Arrighetti
26.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Eduardo Rodriguez
33.0%
Spencer Arrighetti
30.8%
Barrel % Allowedlg 8.0% · lower = better
Eduardo Rodriguez
7.4%
Spencer Arrighetti
9.1%
xwOBA Allowedlg .315 · lower = better
Eduardo Rodriguez
.320
Spencer Arrighetti
.350
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
Eduardo Rodriguez
26.30
lg xERA 4.10
now 2.24
4.25
Spencer Arrighetti
26.30
lg xERA 4.10
now 1.34
4.88
WHIPlower is better
Eduardo Rodriguez
1.011.54
now 1.19
1.32
Spencer Arrighetti
1.011.54
now 1.13
1.42

Volume · rest of season
Strikeoutshigher is better
Eduardo Rodriguez
4068.80
now 52
10
Spencer Arrighetti
4068.80
now 43
11
Winshigher is better
Eduardo Rodriguez
.0009.40
now 5
11
Spencer Arrighetti
.0009.40
now 7
12

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

If you already own them — trade angle
Sell HighEduardo Rodriguez — sell high. His value is peaking; good time to trade him.conf 0.95
SellSpencer Arrighetti — sell.conf 0.90
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