MLB Daily DeltaWeek 15 · July 7, 2026
Portrait of Landen Roupp
Landen Roupp
SF · P
Change to
Portrait of Peter Lambert
Peter Lambert
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

Landen Roupp wins 2 (K, ERA); Peter Lambert wins 2 (WHIP, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Landen Roupp
92.9
Peter Lambert
94.0
Swinging-Strike %lg 11.0% · higher = better
Landen Roupp
11.2%
Peter Lambert
12.5%
Strikeout %lg 22.0% · higher = better
Landen Roupp
26.0%
Peter Lambert
22.4%
Chase %lg 28.5% · higher = better
Landen Roupp
29.1%
Peter Lambert
29.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Landen Roupp
29.3%
Peter Lambert
38.2%
Barrel % Allowedlg 8.0% · lower = better
Landen Roupp
3.8%
Peter Lambert
6.8%
xwOBA Allowedlg .315 · lower = better
Landen Roupp
.289
Peter Lambert
.293
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
Landen Roupp
3.114.54
lg xERA 4.10
now 4.22
3.43
Peter Lambert
3.114.54
lg xERA 4.10
now 3.77
3.53
WHIPlower is better
Landen Roupp
1.141.44
now 1.31
1.37
Peter Lambert
1.141.44
now 1.21
1.33

Volume · rest of season
Strikeoutshigher is better
Landen Roupp
4086.40
now 72
74
Peter Lambert
4086.40
now 43
56
Winshigher is better
Landen Roupp
110
now 5
37
Peter Lambert
110
now 4
48

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

If you already own them — trade angle
Buy LowLanden Roupp — buy low. The dip is a window to acquire.conf 0.90
BuyPeter Lambert — buy.conf 0.77
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