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Tatsuya Imai
SP · 
Houston Astros · #45
Bats/ThrowsR/R
Height5' 11"
Weight176 lbs
BirthplaceTochigi, Japan
MLB Debut2025
🪪Bio
Bats/ThrowsR/R
Height5' 11"
Weight176 lbs
BirthplaceTochigi, Japan
MLB Debut2025
📊Season Stats (2026)
ERA5.20
W-L6-4
IP72.2
K91
WHIP1.49
SV0
Full Stat Line
G20
GS15
QS5
HLD0
H58
ER42
HR9
BB50
K/911.27
WAR0.24
🤚Career Splits by Handedness
vs Left-Handed Batters
AVG.237
OBP.333
SLG.414
OPS.748
vs Right-Handed Batters
AVG.179
OBP.330
SLG.274
OPS.604
Career totals from real plate-appearance data — lower OPS allowed is better for a pitcher.
⚔️This Season vs. Each Opponent
| Opponent | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
vs. OAK
|
1.69 | 10.2 | 17 | 6 | .205 |
vs. LAA
|
11.37 | 6.1 | 8 | 10 | .250 |
vs. CLE
|
4.50 | 6.0 | 11 | 0 | .250 |
vs. DET
|
0.00 | 6.0 | 10 | 1 | .100 |
vs. MIA
|
1.50 | 6.0 | 8 | 3 | .182 |
vs. MIL
|
3.00 | 6.0 | 5 | 2 | .150 |
vs. MIN
|
12.00 | 6.0 | 7 | 5 | .346 |
vs. TEX
|
0.00 | 6.0 | 2 | 4 | .000 |
vs. SEA
|
18.69 | 4.1 | 3 | 7 | .333 |
vs. WSH
|
4.91 | 3.2 | 3 | 3 | .286 |
vs. CHW
|
6.00 | 3.0 | 5 | 3 | .182 |
vs. SF
|
0.00 | 3.0 | 3 | 2 | .250 |
vs. TOR
|
0.00 | 3.0 | 5 | 0 | .000 |
vs. PHI
|
0.00 | 2.0 | 3 | 3 | .143 |
vs. KC
|
67.50 | 0.2 | 1 | 1 | .667 |
🏟️This Season at Each Ballpark
| Ballpark | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Total | 5.20 | 72.2 | 91 | 50 | .216 |
| Minute Maid Park | 6.08 | 40.0 | 54 | 25 | .224 |
| Comerica Park | 0.00 | 6.0 | 10 | 1 | .100 |
| Target Field | 5.79 | 4.2 | 5 | 0 | .278 |
| Nationals Park | 4.91 | 3.2 | 3 | 3 | .286 |
| AT&T Park | 0.00 | 3.0 | 3 | 2 | .250 |
| Citizens Bank Park | 0.00 | 2.0 | 3 | 3 | .143 |
| Angel Stadium | 27.00 | 0.2 | 1 | 4 | .500 |
| Kauffman Stadium | 67.50 | 0.2 | 1 | 1 | .667 |
| Safeco Field | 81.00 | 0.1 | 0 | 4 | .500 |
📅By Month & Recent Form
| Split | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Last 7 Days | 0.00 | 2.0 | 3 | 3 | .143 |
| Last 15 Days | 3.60 | 5.0 | 8 | 6 | .167 |
| Last 30 Days | 3.27 | 11.0 | 14 | 10 | .195 |
| March | 13.50 | 2.2 | 4 | 4 | .273 |
| April | 4.50 | 6.0 | 9 | 7 | .190 |
| May | 4.79 | 20.2 | 15 | 9 | .186 |
| June | 5.09 | 17.2 | 30 | 5 | .243 |
| July | 7.71 | 11.2 | 14 | 15 | .283 |
| August | 2.00 | 9.0 | 11 | 4 | .156 |
| September | 3.60 | 5.0 | 8 | 6 | .167 |
🎯Pitch Arsenal (2026)
| Type | Pitches | Usage% | Zone% | Chase% | Whiff% | BA | wOBA | xwOBA |
|---|---|---|---|---|---|---|---|---|
| Slider | 652 | 46.6% | 33.1% | 46.4% | 40.3% | .171 | .253 | .274 |
| 4-Seam Fastball | 611 | 43.7% | 43.4% | 21.9% | 21.0% | .292 | .391 | .421 |
| Sinker | 64 | 4.6% | 46.9% | 25.0% | 17.9% | .182 | .307 | .458 |
| Changeup | 42 | 3.0% | 28.6% | 37.5% | 75.0% | .500 | 1.000 | .875 |
| Splitter | 24 | 1.7% | 16.7% | 0.0% | 50.0% | — | — | — |
| Curveball | 6 | 0.4% | 0.0% | — | — | .000 | — | — |
🌀Pitch Movement (2026)
| Type | # | Velo | Spin | IVB | H-Break | Ext |
|---|---|---|---|---|---|---|
| Slider | 288 | 86.5 | 2,260 | -0.1" | +0.3" | 5.7 |
| 4-Seam Fastball | 250 | 94.9 | 2,005 | +10.7" | +1.1" | 6.0 |
| Sinker | 51 | 94.7 | 1,973 | +5.1" | +1.5" | 5.9 |
| Changeup | 21 | 87.5 | 1,942 | +9.3" | +1.2" | 6.0 |
IVB = induced vertical break (gravity removed) · H-Break = horizontal movement · Ext = release extension in feet.
📋Recent Game Log
| Date | Opp | Score | IP | H | ER | BB | K | ERA | PC | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L | Wednesday, September 9, 2026 |
PHI
|
7-11 | 2.0 | 1 | 0 | 3 | 3 | 5.20 | 43 | — |
| L | Tuesday, September 1, 2026 |
CHW
|
5-1 | 3.0 | 2 | 2 | 3 | 5 | 5.35 | 59 | — |
| L | Thursday, August 20, 2026 |
LAA
|
18-3 | 3.0 | 2 | 2 | 2 | 3 | 5.32 | 57 | — |
| W | Wednesday, August 12, 2026 |
SF
|
2-1 | 3.0 | 3 | 0 | 2 | 3 | 5.29 | 55 | — |
| L | Monday, August 3, 2026 |
TOR
|
3-1 | 3.0 | 0 | 0 | 0 | 5 | 5.55 | 34 | — |
| W | Monday, July 27, 2026 |
LAA
|
6-4 | 0.2 | 1 | 2 | 4 | 1 | 5.83 | 33 | — |
| W | Tuesday, July 21, 2026 |
MIA
|
3-5 | 6.0 | 4 | 1 | 3 | 8 | 5.59 | 96 | W |
| W | Thursday, June 25, 2026 |
DET
|
2-1 | 6.0 | 2 | 0 | 1 | 10 | 5.36 | 96 | W |
| W | Friday, June 19, 2026 |
CLE
|
3-9 | 6.0 | 6 | 3 | 0 | 11 | 6.15 | 89 | W |
| W | Friday, June 12, 2026 |
KC
|
10-8 | 0.2 | 4 | 5 | 1 | 1 | 6.43 | 38 | — |
👥Team — Houston Astros
| Player | Pos | Key Stat |
|---|---|---|
| Christian Walker | 1B | .228 AVG |
| Jose Altuve | 2B | .246 AVG |
| Raynel Delgado | 2B | .243 AVG |
| Isaac Paredes | 3B | .260 AVG |
| Yainer Diaz | C | .268 AVG |
| Christian Vazquez | C | .210 AVG |
| Jorge Barrosa | CF | .199 AVG |
| Brice Matthews | CF | .197 AVG |
| Jake Meyers | CF | 0.00 ERA |
| Lucas Spence | CF | .162 AVG |
| Daulton Varsho | CF | .228 AVG |
| Yordan Alvarez | DH | .310 AVG |
| Joey Loperfido | Left Fielder | .216 AVG |
| Taylor Trammell | LF | .208 AVG |
| Nelson Velazquez | LF | .191 AVG |
| LaMonte Wade Jr. | LF | 18.00 ERA |
| Cody Bolton | Relief Pitcher | 5.40 ERA |
| Cam Smith | RF | .219 AVG |
| Bryan Abreu | RP | 3.57 ERA |
| Ronel Blanco | RP | 6.59 ERA |
| AJ Blubaugh | RP | 3.34 ERA |
| Enyel De Los Santos | RP | 4.28 ERA |
| Josh Hader | RP | 0.87 ERA |
| Bryan King | RP | 5.17 ERA |
| Steven Okert | RP | 2.13 ERA |
| Alimber Santa | RP | 1.17 ERA |
| Bennett Sousa | RP | 5.55 ERA |
| Kai-Wei Teng | RP | 4.76 ERA |
| Ryan Weiss | RP | 7.62 ERA |
| Carlos Correa | Shortstop | .279 AVG |
| Hunter Brown | SP | 3.52 ERA |
| Cristian Javier | SP | 5.50 ERA |
| Peter Lambert | SP | 3.67 ERA |
| Ethan Pecko | SP | 5.19 ERA |
| Miguel Ullola | SP | 3.86 ERA |
| Hayden Wesneski | SP | 3.35 ERA |
| Nick Allen | SS | .275 AVG |
| Jeremy Pena | SS | .271 AVG |
| Mike Burrows | Starting Pitcher | 5.99 ERA |
| J.P. France | Starting Pitcher | 8.10 ERA |
| Colton Gordon | Starting Pitcher | 11.57 ERA |
| Lance McCullers Jr. | Starting Pitcher | 6.55 ERA |
| Christian Roa | Starting Pitcher | 5.19 ERA |
See the Full Analysis
Key Suspects, player props, DFS rankings, and matchup intelligence for Tatsuya Imai and every MLB game — available in the BlowOutAlert workspace.