MLB Daily DeltaWeek 19 · August 4, 2026
Portrait of Foster Griffin
Foster Griffin
CLE · P
Change to
Portrait of Sonny Gray
Sonny Gray
BOS · 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

Foster Griffin wins 2 (K, WHIP); Sonny Gray wins 2 (ERA, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Foster Griffin
91.5
Sonny Gray
91.7
Swinging-Strike %lg 11.0% · higher = better
Foster Griffin
11.9%
Sonny Gray
10.6%
Strikeout %lg 22.0% · higher = better
Foster Griffin
22.1%
Sonny Gray
21.3%
Chase %lg 28.5% · higher = better
Foster Griffin
33.1%
Sonny Gray
33.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Foster Griffin
37.6%
Sonny Gray
38.5%
Barrel % Allowedlg 8.0% · lower = better
Foster Griffin
9.2%
Sonny Gray
6.7%
xwOBA Allowedlg .315 · lower = better
Foster Griffin
.312
Sonny Gray
.303
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
2.664.47
lg xERA 4.10
now 3.76
4.07
Sonny Gray
2.664.47
lg xERA 4.10
now 3.06
3.82
WHIPlower is better
Foster Griffin
1.081.34
now 1.15
1.17
Sonny Gray
1.081.34
now 1.20
1.27

Volume · rest of season
Strikeoutshigher is better
Foster Griffin
4077.40
now 65
42
Sonny Gray
4077.40
now 41
34
Winshigher is better
Foster Griffin
.0009
now 6
25
Sonny Gray
.0009
now 6
37

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
Hold · leans buySonny Gray — hold.conf 0.60
Tweet