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Tatsuya Imai
#
45
Team
HOU · P
Debut
2026 · 1st MLB season

Tatsuya Imai

Age 28
Contract Value $18,000,000/yr
Size 5' 11" · 176
Throws RHP
Bats Right
From Kanuma, Japan
6-4 W-L
5.59
ERA
1.47
WHIP
11.0
K/9
5.6
BB/9
58.0
Innings
14
Starts
Tatsuya Imai season snapshot
Season stats
ERA
5.59
WHIP
1.47
K/9
11.0
BB/9
5.6
HR/9
1.40
IP
58.0
GS
14
W-L
6-4
◆ Pitcher snapshot

Tatsuya Imai, a starter for the Houston Astros, has paired swing-and-miss stuff with uneven run prevention this season. The R-hander carries a 5.59 ERA, 1.47 WHIP, and 11.02 K/9 across 58.0 in 14 starts, with a 6-4 record that reflects both his upside and his volatility. When his arsenal is in rhythm, he can overpower hitters and miss plenty of bats.

The biggest question is whether he can consistently harness that stuff. His strikeout ability is clear, but the walk rate at 5.59 can create extra traffic and force him into stressful innings. That profile leaves room for dominant stretches, yet it also raises the risk of short outings when his command drifts. For fantasy and matchup purposes, he often looks more attractive for punchouts than for ratio stability.

Recent form:

Recent starts
  • 07/216.0 IP · 1 ER · 8 K
  • 07/073.2 IP · 2 ER · 3 K
  • 07/011.1 IP · 5 ER · 2 K
  • 06/256.0 IP · 0 ER · 10 K
  • 06/196.0 IP · 3 ER · 11 K

Tatsuya Imai has pitched to a down trend lately, and his recent outings have highlighted both ends of the spectrum. At his best, he works aggressively, gets ahead, and turns his bat-missing pitches into putaway weapons. At his worst, scattered command can snowball quickly and keep him from settling into a steady groove.

Overall, he remains an intriguing but high-variance arm for the Houston Astros. The path to better results is straightforward: limit free passes, work deeper into games, and let the strikeout talent play from stronger counts. He has the raw ability to change the tone of a matchup, but his floor stays shaky until the command becomes more dependable.

Tatsuya Imai ERA trend
Last 6
Earned runs per start
Avg 2.7 ER / start
⚡ Alternating good/bad starts — volatile pattern.

Tatsuya Imai game log

2026 season
DateOpponentIPHERKBBERA
Jul 21Miami Marlins641831.50
Jul 7Washington Nationals3.242335.63
Jul 1Minnesota Twins1.1452540.91
Jun 25Detroit Tigers6201010.00
Jun 19Cleveland Guardians6631104.50
Jun 12Kansas City Royals0.24511225.00
Jun 6Athletics552833.60
May 31Milwaukee Brewers632523.00
May 25Texas Rangers600240.00
May 18Minnesota Twins4.253506.43
May 12Seattle Mariners4563313.50
Apr 10Seattle Mariners0.11304270.00
Apr 4Athletics5.230930.00
Mar 29Los Angeles Angels2.2344416.36

Tatsuya Imai season splits

Home / away / vs L-R · 2026
Home ERA
ERA7.92
vs Left AVG
AVG0.259
vs Right AVG
AVG0.176
Away ERA
ERA4.24
Tatsuya Imai monthly splits
ERA · IP · K · BB · WHIP per month
MonthGSERAIPKBBWHIP
Mar113.502.2442.63
Apr24.506.0971.83
May44.7920.21591.06
Jun45.0917.23051.25
Jul36.5511.013112.09
Pitch arsenal
Usage and average velocity · 2026
SLSlider
45.4%86.7 mph
FFFour-seam FB
42.5%94.8 mph
SISinker
5.5%94.5 mph
FSSplitter
3.8%84.7 mph
CHChangeup
2.3%86.6 mph
CUCurveball
0.5%77.6 mph

Performance vs teams

2026 starts · sorted by ERA

Hot / Cold zones

Opponent results by strike zone area

AVG by zone

  • Zone 01: .286
  • Zone 02: .364
  • Zone 03: .100
  • Zone 04: .133
  • Zone 05: .414
  • Zone 06: .438
  • Zone 07: .211
  • Zone 08: .300
  • Zone 09: .083
  • Zone 11: .167
  • Zone 12: .333
  • Zone 13: .034
  • Zone 14: .130

OPS by zone

  • Zone 01: 1.000
  • Zone 02: .818
  • Zone 03: .200
  • Zone 04: .333
  • Zone 05: 1.172
  • Zone 06: .824
  • Zone 07: .526
  • Zone 08: .800
  • Zone 09: .167
  • Zone 11: .792
  • Zone 12: 1.091
  • Zone 13: .306
  • Zone 14: .590

SLG by zone

  • Zone 01: .714
  • Zone 02: .455
  • Zone 03: .100
  • Zone 04: .200
  • Zone 05: .759
  • Zone 06: .438
  • Zone 07: .316
  • Zone 08: .500
  • Zone 09: .083
  • Zone 11: .417
  • Zone 12: .833
  • Zone 13: .138
  • Zone 14: .174

OBP by zone

  • Zone 01: .286
  • Zone 02: .364
  • Zone 03: .100
  • Zone 04: .133
  • Zone 05: .414
  • Zone 06: .412
  • Zone 07: .211
  • Zone 08: .300
  • Zone 09: .083
  • Zone 11: .583
  • Zone 12: .636
  • Zone 13: .194
  • Zone 14: .487

earnedRunAverage by zone

  • Zone 01: -
  • Zone 02: -
  • Zone 03: -
  • Zone 04: -
  • Zone 05: -
  • Zone 06: -
  • Zone 07: -
  • Zone 08: -
  • Zone 09: -
  • Zone 11: -
  • Zone 12: -
  • Zone 13: -
  • Zone 14: -

numberOfStrikes by zone

  • Zone 01: 35.00
  • Zone 02: 38.00
  • Zone 03: 28.00
  • Zone 04: 38.00
  • Zone 05: 58.00
  • Zone 06: 37.00
  • Zone 07: 33.00
  • Zone 08: 47.00
  • Zone 09: 39.00
  • Zone 11: 24.00
  • Zone 12: 15.00
  • Zone 13: 51.00
  • Zone 14: 70.00

numberOfPitches by zone

  • Zone 01: 52.00
  • Zone 02: 49.00
  • Zone 03: 35.00
  • Zone 04: 52.00
  • Zone 05: 84.00
  • Zone 06: 52.00
  • Zone 07: 51.00
  • Zone 08: 67.00
  • Zone 09: 48.00
  • Zone 11: 181.00
  • Zone 12: 78.00
  • Zone 13: 146.00
  • Zone 14: 223.00
0.4000.3000.200
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