MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Marcus Semien
Marcus Semien
NYM · 2B
Change to
Portrait of Michael Massey
Michael Massey
KC · 2B
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 11, 3 even. Take whoever fills a bigger need.

Head-to-head
HR
R
RBI
SB
AVG

Marcus Semien wins 1 (SB); Michael Massey wins 1 (AVG); 3 even.

04

Under the hood

Underlying skill — each value vs league avg
Avg Exit Velolg 89.0 · higher = better
Marcus Semien
86.5
Michael Massey
89.8
Hard-Hit %lg 40.0% · higher = better
Marcus Semien
33.4%
Michael Massey
40.8%
Barrel %lg 8.0% · higher = better
Marcus Semien
6.1%
Michael Massey
5.9%
Chase %lg 28.5% · lower = better
Marcus Semien
27.8%
Michael Massey
38.5%
Swinging-Strike %lg 11.0% · lower = better
Marcus Semien
11.9%
Michael Massey
10.3%
xwOBAlg .315 · higher = better
Marcus Semien
.304
Michael Massey
.305
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
Marcus Semien
.200.260
lg AVG .295
now .228
.217
Michael Massey
.200.260
lg AVG .295
now .250
.236

Volume · counting stats
Home Runshigher is better
Marcus Semien
58.40
now 6
0
Michael Massey
58.40
now 5
0
Runshigher is better
Marcus Semien
2030.60
now 23
4
Michael Massey
2030.60
now 14
4
RBIhigher is better
Marcus Semien
2030.60
now 23
4
Michael Massey
2030.60
now 16
4
Stolen Baseshigher is better
Marcus Semien
.0007
now 5
1
Michael Massey
.0007
now 1
0
If you already own them — trade angle
Hold · leans sellMarcus Semien — hold.conf 0.60
Hold · leans sellMichael Massey — hold.conf 0.60
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