MLB Daily DeltaWeek 17 · July 19, 2026
Portrait of Kai-Wei Teng
Kai-Wei Teng
HOU · P
Change to
Riley Cornelio
WSH · 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

Kai-Wei Teng wins 2 (K, W); Riley Cornelio wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Kai-Wei Teng
93.5
Riley Cornelio
96.3
Swinging-Strike %lg 11.0% · higher = better
Kai-Wei Teng
11.3%
Riley Cornelio
17.5%
Strikeout %lg 22.0% · higher = better
Kai-Wei Teng
22.5%
Riley Cornelio
23.6%
Chase %lg 28.5% · higher = better
Kai-Wei Teng
28.6%
Riley Cornelio
32.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Kai-Wei Teng
40.7%
Riley Cornelio
47.6%
Barrel % Allowedlg 8.0% · lower = better
Kai-Wei Teng
7.1%
Riley Cornelio
9.5%
xwOBA Allowedlg .315 · lower = better
Kai-Wei Teng
.330
Riley Cornelio
.318
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
Kai-Wei Teng
28.25
lg xERA 4.10
now 2.57
4.27
Riley Cornelio
28.25
lg xERA 4.10
now 6.75
3.70
WHIPlower is better
Kai-Wei Teng
.9002.55
now 1.10
1.35
Riley Cornelio
.9002.55
now 2.75
1.24

Volume · rest of season
Strikeoutshigher is better
Kai-Wei Teng
4059.40
now 43
34
Riley Cornelio
4059.40
now 2
12
Winshigher is better
Kai-Wei Teng
.0004.20
now 3
13
Riley Cornelio
.0004.20
now 0
00

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

If you already own them — trade angle
SellKai-Wei Teng — sell.conf 0.69
Buy LowRiley Cornelio — buy low. The dip is a window to acquire.conf 0.90
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