MLB Daily DeltaWeek 27 · September 30, 2026
Engraved portrait of Hyeseong Kim
131 PA · week 27
this weekHOLD
last week—

Hyeseong Kim

data as of September 30, 2026·week 27
Hold · wait & see skill near league average (0.304); BABIP 0.337 sits above league and is not yet stable, expect some of the average to regress; hold and wait — key skill metric not yet stable enough to call.med 0.50 (narrative held for review)
ROSHR 0AVG .000R 0RBI 0SB 0

Kim is a hold — average skill, an early-season sample, nothing unstable.

ROS projects HR 1 YTD → 0 ROS, AVG .259 YTD → .000 ROS. Stable, rosterable; no clear edge to exploit either way.

VS His Norm

  • Barrel %3.4%—+0.7% ▲vs his ~2.7% career norm

Drivers

  • xwobaNOISEskill near league average (0.304)
  • babipNOISEBABIP 0.337 sits above league and is not yet stable — expect some of the average to regress
metric · nowrolling trajectoryvs. leaguestabilized?
Avg Exit Velo85.8 mph
85.8 mph*
lg avg 89.0 mph ▼−3.2 mphvs his norm —
87 / 50 BBE
Hard-Hit %25.3%
25.3%*
lg avg 40.0% ▼−14.7%vs his norm —
87 / 50 BBE
Barrel %3.4%
norm3.4%*
lg avg 8.0% ▼−4.6%vs his norm +0.7% ▲
87 / 60 BBE
xwOBA.304
.304*
lg avg .315 ▼−.011vs his norm —xwOBA is below the ~.315 league average — expect it to rise.
131 / 160 PA
wOBA.293
.293*
lg avg .315 ▼−.022vs his norm —wOBA is below the ~.315 league average — expect it to rise.
131 / 200 PA
Strikeout %23.7%
23.7%*
lg avg 22.0% ▲+1.7%vs his norm —
131 / 60 PA
Walk %9.2%
9.2%*
lg avg 8.5% ▲+0.7%vs his norm —
131 / 120 PA
BABIP.337
norm.337*
lg avg .295 ▲+.042vs his norm −.059 ▼BABIP is below his ~.396 norm — expect it to rise.
87 / 800 BIP
Swinging-Strike %12.8%
12.8%*
lg avg 11.0% ▲+1.8%vs his norm —
131 / 50 PA
Chase %29.2%
29.2%*
lg avg 28.5% ▲+0.7%vs his norm —
131 / 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% 3.4%→2.9%signal0 HR — Barrel% 3.4% (signal) tempered to career ~2.7% → projected 2.9%.
BABIP 0.337→0.335 regressednoise.000 AVG — BABIP 0.337 is noise, regressed toward xBA-implied 0.334 (xBA 0.261) → 0.335.
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 (5 in 43 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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