MLB Daily DeltaWeek 17 · July 17, 2026
Portrait of Reynaldo López
Reynaldo López
ATL · P
Change to
Portrait of Wandy Peralta
Wandy Peralta
SD · 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

Reynaldo López wins 2 (K, W); Wandy Peralta wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Reynaldo López
94.4
Wandy Peralta
96.4
Swinging-Strike %lg 11.0% · higher = better
Reynaldo López
9.9%
Wandy Peralta
10.8%
Strikeout %lg 22.0% · higher = better
Reynaldo López
20.8%
Wandy Peralta
15.7%
Chase %lg 28.5% · higher = better
Reynaldo López
26.9%
Wandy Peralta
31.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Reynaldo López
35.2%
Wandy Peralta
34.2%
Barrel % Allowedlg 8.0% · lower = better
Reynaldo López
6.7%
Wandy Peralta
3.4%
xwOBA Allowedlg .315 · lower = better
Reynaldo López
.327
Wandy Peralta
.311
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
Reynaldo López
2.144.80
lg xERA 4.10
now 3.31
4.21
Wandy Peralta
2.144.80
lg xERA 4.10
now 2.73
3.72
WHIPlower is better
Reynaldo López
1.191.51
now 1.33
1.34
Wandy Peralta
1.191.51
now 1.44
1.26

Volume · rest of season
Strikeoutshigher is better
Reynaldo López
4036.60
now 31
31
Wandy Peralta
4036.60
now 19
18
Winshigher is better
Reynaldo López
.0004.20
now 2
13
Wandy Peralta
.0004.20
now 0
00

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

If you already own them — trade angle
Sell HighReynaldo López — sell high. His value is peaking; good time to trade him.conf 0.95
Hold · wait & seeWandy Peralta — hold.conf 0.50
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