MLB Daily DeltaWeek 20 · August 9, 2026
Portrait of Foster Griffin
Foster Griffin
CLE · P
Change to
Portrait of Peter Lambert
Peter Lambert
HOU · P
Change to
Who's more valuable, rest of season

Foster Griffin.

He projects to help you in more roto categories the rest of the way — strikeouts and WHIP.

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

Foster Griffin wins 2 categories (K, WHIP); Peter Lambert wins 1 (ERA); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Foster Griffin
91.5
Peter Lambert
93.9
Swinging-Strike %lg 11.0% · higher = better
Foster Griffin
11.8%
Peter Lambert
12.5%
Strikeout %lg 22.0% · higher = better
Foster Griffin
22.4%
Peter Lambert
24.1%
Chase %lg 28.5% · higher = better
Foster Griffin
32.8%
Peter Lambert
29.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Foster Griffin
37.6%
Peter Lambert
37.7%
Barrel % Allowedlg 8.0% · lower = better
Foster Griffin
9.1%
Peter Lambert
6.5%
xwOBA Allowedlg .315 · lower = better
Foster Griffin
.312
Peter Lambert
.285
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
Foster Griffin
3.064.36
lg xERA 4.10
now 3.76
4.07
Peter Lambert
3.064.36
lg xERA 4.10
now 3.77
3.35
WHIPlower is better
Foster Griffin
1.081.36
now 1.15
1.18
Peter Lambert
1.081.36
now 1.21
1.29

Volume · rest of season
Strikeoutshigher is better
Foster Griffin
4078.20
now 65
38
Peter Lambert
4078.20
now 43
32
Winshigher is better
Foster Griffin
.4007.60
now 6
25
Peter Lambert
.4007.60
now 4
25

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

If you already own them — trade angle
Sell HighFoster Griffin — sell high. His value is peaking; good time to trade him.conf 0.95
BuyPeter Lambert — buy.conf 0.82
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