MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Connor Prielipp
Connor Prielipp
MIN · P
Change to
Portrait of Martín Pérez
Martín Pérez
ATL · P
Change to
Who's more valuable, rest of season

Connor Prielipp.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and WHIP. Martín Pérez’s box score looks better right now, but it’s built on luck that won’t hold.

Head-to-head
K
ERA
WHIP
W
SV n/a

Connor Prielipp wins 3 categories (K, ERA, WHIP); Martín Pérez wins 1 (W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Connor Prielipp
95.6
Martín Pérez
89.9
Swinging-Strike %lg 11.0% · higher = better
Connor Prielipp
11.5%
Martín Pérez
9.4%
Strikeout %lg 22.0% · higher = better
Connor Prielipp
24.8%
Martín Pérez
18.0%
Chase %lg 28.5% · higher = better
Connor Prielipp
30.1%
Martín Pérez
26.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Connor Prielipp
42.1%
Martín Pérez
38.1%
Barrel % Allowedlg 8.0% · lower = better
Connor Prielipp
7.2%
Martín Pérez
5.4%
xwOBA Allowedlg .315 · lower = better
Connor Prielipp
.313
Martín Pérez
.334
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
Connor Prielipp
26.07
lg xERA 4.10
now 5.13
4.11
Martín Pérez
26.07
lg xERA 4.10
now 2.79
4.52
WHIPlower is better
Connor Prielipp
.9301.52
now 1.35
1.34
Martín Pérez
.9301.52
now 1.06
1.39

Volume · rest of season
Strikeoutshigher is better
Connor Prielipp
4055.20
now 35
12
Martín Pérez
4055.20
now 42
9
Winshigher is better
Connor Prielipp
.0004.20
now 1
00
Martín Pérez
.0004.20
now 3
01

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

If you already own them — trade angle
Buy LowConnor Prielipp — buy low. The dip is a window to acquire.conf 0.90
Sell HighMartín Pérez — sell high. His value is peaking; good time to trade him.conf 0.95
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