MLB Daily DeltaWeek 27 · September 27, 2026
Brett Callahan
DET · LF
Change to
Portrait of Mike Yastrzemski
Mike Yastrzemski
ATL · LF
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 0–0, 5 even. Take whoever fills a bigger need.

Head-to-head
HR
R
RBI
SB
AVG

Brett Callahan wins 0 (none); Mike Yastrzemski wins 0 (none); 5 even.

04

Under the hood

Underlying skill — each value vs league avg
Avg Exit Velolg 89.0 · higher = better
Brett Callahan
89.9
Mike Yastrzemski
90.4
Hard-Hit %lg 40.0% · higher = better
Brett Callahan
44.4%
Mike Yastrzemski
43.2%
Barrel %lg 8.0% · higher = better
Brett Callahan
11.1%
Mike Yastrzemski
6.6%
Chase %lg 28.5% · lower = better
Brett Callahan
40.2%
Mike Yastrzemski
26.3%
Swinging-Strike %lg 11.0% · lower = better
Brett Callahan
16.6%
Mike Yastrzemski
9.9%
xwOBAlg .315 · higher = better
Brett Callahan
.298
Mike Yastrzemski
.309
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 · batting average
AVGhigher is better
Brett Callahan
.200.480
lg AVG .295
now .444
.000
Mike Yastrzemski
.200.480
lg AVG .295
now .250
.000

Volume · counting stats
Home Runshigher is better
Brett Callahan
54.20
now 1
0
Mike Yastrzemski
54.20
now 3
0
Runshigher is better
Brett Callahan
2035
now 2
0
Mike Yastrzemski
2035
now 25
0
RBIhigher is better
Brett Callahan
2023.80
now 5
0
Mike Yastrzemski
2023.80
now 17
0
Stolen Baseshigher is better
Brett Callahan
.0002.20
now 0
0
Mike Yastrzemski
.0002.20
now 1
0
If you already own them — trade angle
Hold · wait & seeBrett Callahan — hold.conf 0.50
Hold · steadyMike Yastrzemski — hold.conf 0.60
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