MLB Daily DeltaWeek 31 · October 26, 2026
Engraved portrait of Mike Yastrzemski
408 PA · week 31
this weekHOLD
last weekHOLD

Mike Yastrzemski

data as of October 26, 2026·week 31
Hold · steady skill near league average (0.309); hold steady — skill tracks near league, no edge either way.med 0.60
ROSHR 0AVG .000R 0RBI 0SB 0

Yastrzemski is a hold — the profile is league average, and stable.

His expected wOBA is .309, six points under the league average of .315, and he has 408 plate appearances — comfortably past the point where that number becomes reliable. His actual wOBA of .306 sits right on top of it, so there is no luck story holding the line up or dragging it down. The contact quality tracks the same way: 90.4 mph average exit velocity and a 43.0% hard-hit rate are both modestly above league, while his 6.8% barrel rate sits under it. He strikes out 24% of the time and walks 10%, and his chase and swinging-strike rates are both below league, so the approach is sound. The one wrinkle is that his expected wOBA has been stepping down across the sample rather than climbing. That is a trend worth watching, not a reason to move. Hold. 0 HR / 0 R / 0 RBI / 0 SB / .000 AVG projects a fringe, streaming-only asset — hold is just status quo, not a reason to keep him rostered.

VS His Norm

  • Barrel %6.8%—−2.7% ▼vs his ~9.5% career norm

Drivers

  • xwobaSIGNALskill near league average (0.309)
metric · nowrolling trajectoryvs. leaguestabilized?
Avg Exit Velo90.4 mph
90.4 mph*
lg avg 89.0 mph ▲+1.4 mphvs his norm —
265 / 50 BBE
Hard-Hit %43.0%
43.0%*
lg avg 40.0% ▲+3.0%vs his norm —
265 / 50 BBE
Barrel %6.8%
norm6.8%*
lg avg 8.0% ▼−1.2%vs his norm −2.7% ▼
265 / 60 BBE
xwOBA.309
believable since May 29.309*
lg avg .315 ▼−.006vs his norm —
408 / 160 PA
wOBA.306
.306*
lg avg .315 ▼−.009vs his norm —
408 / 200 PA
Strikeout %24.0%
24.0%*
lg avg 22.0% ▲+2.0%vs his norm —
408 / 60 PA
Walk %10.0%
10.0%*
lg avg 8.5% ▲+1.5%vs his norm —
408 / 120 PA
BABIP.273
norm.273*
lg avg .295 ▼−.022vs his norm +.001 ▲BABIP is above his ~.272 norm — expect it to fall.
265 / 800 BIP
Swinging-Strike %9.9%
9.9%*
lg avg 11.0% ▼−1.1%vs his norm —
408 / 50 PA
Chase %26.4%
26.4%*
lg avg 28.5% ▼−2.1%vs his norm —
408 / 50 PA

5×5 ROS Outlook

rest of season

Where each category goes the rest of the way, and the skill that drives it. Tap a row to expand the full derivation.

statytdrosdriverconf
Barrel% 6.8%→8.0%signal0 HR — Barrel% 6.8% (signal) lifted to career ~9.5% → projected 8.0%.
BABIP 0.273→0.282 regressednoise.000 AVG — BABIP 0.273 is noise, regressed toward xBA-implied 0.286 (xBA 0.235) → 0.282.
on-base + lineup0 R — his run rate over ~0 projected PA.
slugging + lineup0 RBI — his RBI rate over ~0 projected PA.
run rate / role0 SB — his steal rate (1 in 54 G) over ~0 projected PA.
rosterdroprotational counting only

Every projection traces to a sabermetric input. The driver and confidence shown per row are always visible; tap any row to expand the full derivation.

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