Player Directory


Chiba Lotte Marines
Koshiro Sakamoto
Koshiro Sakamoto
36
-
ERA
ERA2.82
-
strike out rate
K/910.07
-
BB rate
BB/93.63
*FY2026
-
position
-
birthday
-
age
-
height
-
body weight
-
Birthplace
-
Pitching and batting
left-handed pitcher / left-handed hitter
-
Blood type
-
Draft Year
-
Biography
Josuikan High School - Nippon Bunri University - Nippon Steel & Sumitomo Metal Hirohata - Tokyo Yakult (2019 - part of 2022) -Chiba Lotte Marines (part of 2022 -)
-
Titles won
Participation results
Season results
| ERA | 2.82 | Appearance | 18 |
|---|---|---|---|
| CG | 0 | SHO | 0 |
| No Walk | 0 | Wins | 2 |
| Lose | 1 | H | 1 |
| Holds | 3 | Saves | 0 |
| W-L % | .667 | IP | 22.1 |
| hitter | 91 | HR | 1 |
| Strike Outs | 25 | BB | 9 |
| Hit By Pitch | 0 | Wild pitch | 0 |
| Bork | 0 | Runs Allowed | 8 |
| earned runs | 7 | BB/9 | 3.63 |
| K/9 | 10.07 | K/BB | 2.78 |
| WHIP | 1.21 | Avg | .231 |
| BABIP | .304 |
Results by condition
pitcher statistics: by game
| date | result | IP | Number of pitch | hitter | H | HR | SO | BB | Hit By Pitch | Runs Allowed | earned runs | ERA |
|---|
| July | 8.2 | 125 | 31 | 5 | 0 | 9 | 3 | 0 | 2 | 2 | 2.08 |
|---|
| June | 6.2 | 114 | 29 | 7 | 1 | 8 | 2 | 0 | 4 | 4 | 5.40 |
|---|
| May | 3.0 | 49 | 13 | 2 | 0 | 2 | 2 | 0 | 1 | 1 | 3.00 |
|---|
| April | 4.0 | 68 | 18 | 4 | 0 | 6 | 2 | 0 | 1 | 0 | 0.00 |
|---|
hitter statistics: by game
| date | AB | H | HR | R | RBI | SO | BB | HBP | SB | SAC | AVG | Batting results (video) |
|---|
| July | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
|---|
| June | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
|---|
| May | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
|---|
| April | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
|---|
pitcher statistics: by year
| year | Team | ERA | Appearance | CG | SHO | No Walk | Wins | Lose | H | HP | SV | W-L % | IP | hitter | HR | SO | BB | Hit By Pitch | Wild pitch | Bork | BB/9 | K/9 | K/BB | WHIP | Avg | BABIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 |
|
5.82 | 19 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 0 | .000 | 21.2 | 104 | 2 | 15 | 16 | 2 | 2 | 0 | 6.65 | 6.23 | 0.94 | 1.75 | .262 | .290 |
| 2020 |
|
12.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | 3.0 | 19 | 1 | 3 | 4 | 1 | 0 | 0 | 12.00 | 9.00 | 0.75 | 3.00 | .357 | .400 |
| 2021 |
|
4.05 | 36 | 0 | 0 | 0 | 1 | 2 | 7 | 8 | 0 | .333 | 33.1 | 148 | 4 | 25 | 17 | 3 | 2 | 0 | 4.59 | 6.75 | 1.47 | 1.38 | .238 | .253 |
| 2022 |
|
9.28 | 7 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | .000 | 10.2 | 59 | 4 | 11 | 9 | 1 | 2 | 0 | 7.59 | 9.28 | 1.22 | 2.25 | .319 | .324 |
| 2022 |
|
4.15 | 7 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | .000 | 8.2 | 34 | 3 | 6 | 1 | 0 | 0 | 0 | 1.04 | 6.23 | 6.00 | 1.15 | .273 | .250 |
| 2023 |
|
3.21 | 51 | 0 | 0 | 0 | 1 | 0 | 16 | 17 | 0 | 1.000 | 47.2 | 209 | 5 | 48 | 22 | 2 | 2 | 0 | 4.15 | 9.06 | 2.18 | 1.43 | .256 | .311 |
| 2024 |
|
5.73 | 37 | 0 | 0 | 0 | 1 | 2 | 11 | 12 | 0 | .333 | 33.0 | 146 | 3 | 34 | 12 | 5 | 2 | 0 | 3.27 | 9.27 | 2.83 | 1.39 | .274 | .337 |
| 2025 |
|
6.35 | 8 | 0 | 0 | 0 | 1 | 2 | 2 | 3 | 0 | .333 | 5.2 | 28 | 0 | 3 | 4 | 2 | 0 | 0 | 6.35 | 4.76 | 0.75 | 1.76 | .273 | .316 |
| 2026 |
|
2.82 | 18 | 0 | 0 | 0 | 2 | 1 | 1 | 3 | 0 | .667 | 22.1 | 91 | 1 | 25 | 9 | 0 | 0 | 0 | 3.63 | 10.07 | 2.78 | 1.21 | .231 | .304 |
| Overall record | 4.69 | 184 | 0 | 0 | 0 | 6 | 8 | 41 | 47 | 0 | .429 | 186 | 838 | 23 | 170 | 94 | 16 | 10 | 0 | 4.55 | 8.23 | 1.81 | 1.49 | .261 | .301 | |
2026/7/27 03:08 更新
hitter statistics: by year
| year | Team | AVG | GP | PA | AB | H | 2B | 3B | HR | TB | RBI | R | SO | BB | HBP | SAC | SF | SB | CS | GIDP | SLG | OPS | ISO | ISOD | BB/K | BABIP | AB/HR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 |
|
.000 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | - | - | - |
| 2020 |
|
.000 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | - | - | - |
| 2021 |
|
.000 | 36 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | - | - | - |
| 2022 |
|
.000 | 7 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | - | - |
| 2022 |
|
.000 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | - | - | - |
| 2023 |
|
.000 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | - | - | - |
| 2024 |
|
.000 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | - | - | - |
| 2025 |
|
.000 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | - | - | - |
| 2026 |
|
.000 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | - | - | - |
| Overall record | .000 | 184 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | - | - | |
2026/7/27 03:08 更新
Player Access Ranking
Featured

















