MLB Daily DeltaWeek 13 · June 22, 2026
Portrait of Mitch Keller
Mitch Keller
PIT · P
Change to
Portrait of Tanner Bibee
Tanner Bibee
CLE · P
Change to
Who's more valuable, rest of season

Tanner Bibee.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and WHIP. Mitch Keller’s box score looks better right now, but the luck-stripped projection flips it.

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

Tanner Bibee wins 3 categories (K, ERA, WHIP); Mitch Keller wins 1 (W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Mitch Keller
93.4
Tanner Bibee
94.1
Swinging-Strike %lg 11.0% · higher = better
Mitch Keller
9.8%
Tanner Bibee
12.6%
Strikeout %lg 22.0% · higher = better
Mitch Keller
18.4%
Tanner Bibee
21.4%
Chase %lg 28.5% · higher = better
Mitch Keller
28.7%
Tanner Bibee
26.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Mitch Keller
41.0%
Tanner Bibee
45.5%
Barrel % Allowedlg 8.0% · lower = better
Mitch Keller
6.4%
Tanner Bibee
10.1%
xwOBA Allowedlg .315 · lower = better
Mitch Keller
.345
Tanner Bibee
.332
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
Mitch Keller
4.134.91
lg xERA 4.10
now 4.35
4.69
Tanner Bibee
4.134.91
lg xERA 4.10
now 4.57
4.42
WHIPlower is better
Mitch Keller
1.081.48
now 1.17
1.39
Tanner Bibee
1.081.48
now 1.30
1.28

Volume · rest of season
Strikeoutshigher is better
Mitch Keller
40.6087.40
now 51
69
Tanner Bibee
40.6087.40
now 60
77
Winshigher is better
Mitch Keller
.00012.60
now 5
49
Tanner Bibee
.00012.60
now 0
00

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

If you already own them — trade angle
SellMitch Keller — sell.conf 0.82
Sell HighTanner Bibee — sell high. His value is peaking; good time to trade him.conf 0.87
Tweet