MLB Daily DeltaWeek 31 · October 26, 2026
Engraved portrait of Fernando Tatis Jr.
704 PA · week 31
this weekBUY
last weekBUY

Fernando Tatis Jr.

data as of October 26, 2026·week 31
Buy stable xwOBA 0.379, +0.064 vs league, production is earned; elite, already-stable contact quality — BABIP 0.327 sits above league and is not yet stable, expect some of the average to regress; add now.med 0.73
ROSHR 0AVG .000R 0RBI 0SB 0

Tatis is a buy — elite contact, with a little BABIP giveback owed.

His hard-hit rate has climbed to 53.9% — nearly 14 points above the league average of 40.0% — and his expected wOBA of .379 runs .064 above league, on enough plate appearances to trust. Both are trending up, not flattening, which is the part that matters. His actual wOBA of .358 is already a full 43 points above league even before the luck discussion starts. The one number that owes something back is his BABIP: .327 against a league average of .295. BABIP needs around 800 balls in play to be reliable and he has 503, so that gap is partly luck, and some batting average is coming off. The contact quality and the expected wOBA are the real story; the average will give back only a sliver. Buy.

VS His Norm

  • Barrel %12.7%—+0.9% ▲vs his ~11.8% career norm

Drivers

  • xwobaSIGNALstable xwOBA 0.379, +0.064 vs league — production is earned
  • hard_hit_pctSIGNALelite, already-stable contact quality
  • babipNOISEBABIP 0.327 sits above league and is not yet stable — expect some of the average to regress
metric · nowrolling trajectoryvs. leaguestabilized?
Avg Exit Velo92.9 mph
92.9 mph*
lg avg 89.0 mph ▲+3.9 mphvs his norm —
503 / 50 BBE
Hard-Hit %53.9%
53.9%*
lg avg 40.0% ▲+13.9%vs his norm —
503 / 50 BBE
Barrel %12.7%
norm12.7%*
lg avg 8.0% ▲+4.7%vs his norm +0.9% ▲
503 / 60 BBE
xwOBA.379
.379*
lg avg .315 ▲+.064vs his norm —
704 / 160 PA
wOBA.358
.358*
lg avg .315 ▲+.043vs his norm —
704 / 200 PA
Strikeout %18.5%
18.5%*
lg avg 22.0% ▼−3.5%vs his norm —
704 / 60 PA
Walk %9.1%
9.1%*
lg avg 8.5% ▲+0.6%vs his norm —
704 / 120 PA
BABIP.327
norm.327*
lg avg .295 ▲+.032vs his norm +.022 ▲BABIP is above his ~.305 norm — expect it to fall.
503 / 800 BIP
Swinging-Strike %11.9%
11.9%*
lg avg 11.0% ▲+0.9%vs his norm —
704 / 50 PA
Chase %26.4%
26.4%*
lg avg 28.5% ▼−2.1%vs his norm —
704 / 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% 12.7%→12.5%signal0 HR — Barrel% 12.7% (signal) tempered to career ~11.8% → projected 12.5%.
BABIP 0.327→0.344 regressednoise.000 AVG — BABIP 0.327 is noise, regressed toward xBA-implied 0.374 (xBA 0.296) → 0.344.
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 (14 in 57 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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