Houston Astros#45 · SP
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
4.93
ERA
1.42
WHIP
97
K
76.2
IP
15
GS
Stats updated Oct 22, 3:31 AM ETLast game Jul 21 vs MIA
Season overview
How good is he?
StatPlayerMLB AvgPercentile
Run Prevention3850WEAK
Skill5350AVERAGE
Workload2850POOR
Consistency1950POOR
Form4450BELOW AVG
Contact Management3850WEAK
Recent form
Last 5 startsGame log
Pitch arsenal (2026)
Usage %Velocity
- Slider45.6%86.6 mph
- Four-seam FB44.0%94.8 mph
- Sinker4.4%94.5 mph
- Splitter3.0%84.7 mph
- Changeup2.6%86.8 mph
- Curveball0.4%77.6 mph
Hot / cold zones (vs RHB)
.250.286.167.143.429.389.190.304.188
- Better than MLB avg
- Similar to MLB avg
- Worse than MLB avg
Monthly ERA (2026)
Minimum 1 GSSplits
Home / away
Home (6 GS)
5.46
WHIP 1.38
Away (5 GS)
1.73
WHIP 0.96
3.73 ERA better on the road
vs handedness
vs LHH
.731
vs RHH
.640
.091 OPS better vs RHH
By monthERA · IP · K
July2.799.211
June2.6517.029
May4.7920.215
April0.005.29
March13.502.24
Rest daysERA · WHIP · K/9
6+ days (10 GS)3.231.1110.9
Sample sizes below four starts are not shown
Career
Frequently asked
What is Tatsuya Imai's ERA in 2026?+
4.93 across 15 starts and 76.2 innings, with a 1.42 WHIP and a 4.42 FIP. That ERA ranks 161st among qualified starters.
When is his next start?+
No probable start has been announced.
What pitches does he throw?+
He throws slider (45.6% at 86.6 mph mph), four-seam fb (44.0% at 94.8 mph mph), sinker (4.4% at 94.5 mph mph), splitter (3.0% at 84.7 mph mph), changeup (2.6% at 86.8 mph mph), curveball (0.4% at 77.6 mph mph).
What is his P-Score?+
38 out of 100, which we label weak — 185th among 226 qualified starters.
How has he pitched in his last 5 starts?+
A 2.70 ERA, 13.5 K/9, 3.4 BB/9.