MLB Daily DeltaWeek 13 · June 23, 2026
Portrait of Ethan Roberts
Ethan Roberts
CHC · P
Change to
Portrait of Kai-Wei Teng
Kai-Wei Teng
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

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Ethan Roberts
93.6
Kai-Wei Teng
93.6
Swinging-Strike %lg 11.0% · higher = better
Ethan Roberts
10.3%
Kai-Wei Teng
11.5%
Strikeout %lg 22.0% · higher = better
Ethan Roberts
17.3%
Kai-Wei Teng
24.0%
Chase %lg 28.5% · higher = better
Ethan Roberts
25.8%
Kai-Wei Teng
29.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Ethan Roberts
44.8%
Kai-Wei Teng
39.9%
Barrel % Allowedlg 8.0% · lower = better
Ethan Roberts
3.0%
Kai-Wei Teng
7.4%
xwOBA Allowedlg .315 · lower = better
Ethan Roberts
.326
Kai-Wei Teng
.320
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
Ethan Roberts
24.99
lg xERA 4.10
now 1.69
3.70
Kai-Wei Teng
24.99
lg xERA 4.10
now 2.57
4.05
WHIPlower is better
Ethan Roberts
.9001.48
now 1.00
1.24
Kai-Wei Teng
.9001.48
now 1.10
1.34

Volume · rest of season
Strikeoutshigher is better
Ethan Roberts
4061
now 12
25
Kai-Wei Teng
4061
now 43
47
Winshigher is better
Ethan Roberts
.0007
now 0
00
Kai-Wei Teng
.0007
now 3
25

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

If you already own them — trade angle
Sell HighEthan Roberts — sell high. His value is peaking; good time to trade him.conf 0.95
Hold · steadyKai-Wei Teng — hold.conf 0.60
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