MLB Daily DeltaWeek 17 · July 18, 2026
Engraved portrait of Tatsuya Imai
week 17
this weekSELL
last weekHOLD

Tatsuya Imai

data as of July 18, 2026·week 17
flipped from HOLD on July 18, 2026
Sell stable xERA 5.06 +0.96 vs league with no luck excuse; move on.high 0.84
ROSK 41ERA 4.72WHIP 1.44W 2–4SV 0

Imai is a sell — skill is below league, no luck to blame.

His expected ERA is 5.06, nearly a full run above the league average of 4.10, and 233 batters faced is enough to trust that number. His actual ERA may or may not be lower — but either way, the skill is not there. He allows a 45.9% hard-hit rate and 10.5% barrel rate, both above acceptable levels, and that contact quality is stable after 133 batted ball events. The one bright spot is a 27% strikeout rate, well above league average, but it comes with a 14.2% walk rate — more than six points above average — and the swing-and-miss (13.6%) is good, but batters are not chasing (27.2%, below average). The xERA has been stepping up over the sample, meaning things are getting worse, not better. There is no bad luck story here; this is simply a pitcher who gives up hard contact and walks too many. Sell. 41 K, 4.72 ERA, 1.44 WHIP: a streaming-only arm whose walk rate makes any deep-league trust a gamble.

VS His Norm

  • Strikeout %27.0%+4.8%vs his ~22.2% career norm
  • Walk %14.2%−1.7%vs his ~15.9% career norm

Drivers

  • xeraSIGNALstable xERA 5.06 +0.96 vs league with no luck excuse
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed45.9%
believable since May 2545.9%*
lg avg 40.0% +5.9%vs his norm —
133 / 50 BBE
Barrel % Allowed10.5%
10.5%*
lg avg 8.0% +2.5%vs his norm —
133 / 60 BBE
xwOBA Allowed.345
.345*
lg avg .315 +.030vs his norm —
233 / 200 TBF
xERA5.06
5.06*
lg avg 4.10 +0.96vs his norm —
233 / 200 TBF
ERA6.06
6.06*
lg avg 4.10 +1.96vs his norm —ERA is above the ~4.10 league averageexpect it to fall.
52 / 200 IP
Strikeout %27.0%
norm27.0%*
lg avg 22.0% +5.0%vs his norm +4.8%
233 / 70 TBF
Walk %14.2%
norm14.2%*
lg avg 8.0% +6.2%vs his norm −1.7%
233 / 170 TBF
BABIP Against.293
.293*
lg avg .295 −.002vs his norm —BABIP Against is below the ~.295 league averageexpect it to rise.
133 / 800 BIP
Swinging-Strike %13.6%
13.6%*
lg avg 11.0% +2.6%vs his norm —
233 / 60 TBF
Chase %27.2%
27.2%*
lg avg 28.5% −1.3%vs his norm —
233 / 60 TBF
Fastball Velo94.8 mph
94.8 mph*
lg avg 94.0 mph +0.8 mphvs his norm —
1022 / 50 PITCHES

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
K% 27.0%→24.8%signal41 K — K% 27.0% (signal) tempered to career ~22.2% → projected 24.8% over ~47 remaining…
xERA 5.06signal4.72 ERA — xERA 5.06 (signal) blended 65% skill / 35% league 4.10 at 29 IP.
BB% 14.2% + contactsignal1.44 WHIP — a 14% walk rate plus BABIP-against 0.295 gives a 1.52 skill WHIP, blended 6…
run support + role2-4 W — wins ride run support and how deep he goes, not just skill.
role (starter)0 SV — role: starter, not in the save mix.
rosterdrop41 K ROS, 4.72 ERA

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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