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Ji Sung You 유지성
P
Age: 25
Bats/Throws: /
6'2" / 207
DOB: 11/15/2000
(25 years, 11 months, 17 days)
P
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KBO stat lines do not separate stints with different teams before 2019; the team reported is the last team the player played for that season.
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KBO
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 23 | 0 | 0 | 0 | 3 | 0 | 2.1 | 11.57 | 0.00 | 3.86 | .444 | 43.5% | 44.4% | 25.0% | 7.71 | 8.04 | 4.68 | ||||||
| 2025 | KIA | KBO | 24 | 0 | 0 | 0 | 1 | 0 | 1.0 | 0.00 | 0.00 | 0.00 | .000 | 100.0% | 66.7% | 0.0% | 0.00 | 3.44 | 4.60 |
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 23 | 0 | 0 | 0 | 3 | 0 | 2.1 | 11.57 | 0.00 | 3.86 | .444 | 43.5% | 44.4% | 25.0% | 7.71 | 8.04 | 4.68 | ||||||
| 2025 | KIA | KBO | 24 | 0 | 0 | 0 | 1 | 0 | 1.0 | 0.00 | 0.00 | 0.00 | .000 | 100.0% | 66.7% | 0.0% | 0.00 | 3.44 | 4.60 |
KBO
| Season | Team | Level | W | L | ERA | G | GS | QS | CG | ShO | SV | HLD | BS | IP | TBF | H | R | ER | HR | BB | IBB | HBP | WP | BK | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 0 | 0 | 7.71 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 2.1 | 14 | 5 | 4 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 3 | |
| 2025 | KIA | KBO | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Season | Team | Level | W | L | ERA | G | GS | QS | CG | ShO | SV | HLD | BS | IP | TBF | H | R | ER | HR | BB | IBB | HBP | WP | BK | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 0 | 0 | 7.71 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 2.1 | 14 | 5 | 4 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 3 | |
| 2025 | KIA | KBO | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
AveragesKBO
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 11.57 | 0.00 | 3.00 | 3.86 | 21.4% | 0.0% | 21.4% | .385 | 2.14 | .444 | 43.5% | 156 | 162 | 8.04 | ||||
| 2025 | KIA | KBO | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% | 0.0% | 0.0% | .000 | 0.00 | .000 | 100.0% | 0 | 79 | 3.44 |
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 11.57 | 0.00 | 3.00 | 3.86 | 21.4% | 0.0% | 21.4% | .385 | 2.14 | .444 | 43.5% | 156 | 162 | 8.04 | ||||
| 2025 | KIA | KBO | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% | 0.0% | 0.0% | .000 | 0.00 | .000 | 100.0% | 0 | 79 | 3.44 |
KBO
| Season | Team | Level | GB/FB | LD% | GB% | FB% | IFFB% | HR/FB | IFH% | BUH% | divider | Pull% | Cent% | Oppo% | divider | Soft% | Med% | Hard% | divider | SIERA | xFIP- | xFIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 1.00 | 11.1% | 44.4% | 44.4% | 25.0% | 25.0% | 30.0% | 30.0% | 40.0% | 20.0% | 50.0% | 30.0% | 95 | 4.68 | ||||||
| 2025 | KIA | KBO | 2.00 | 0.0% | 66.7% | 33.3% | 0.0% | 0.0% | 66.7% | 0.0% | 33.3% | 0.0% | 66.7% | 33.3% | 106 | 4.60 |
| Season | Team | Level | GB/FB | LD% | GB% | FB% | IFFB% | HR/FB | IFH% | BUH% | divider | Pull% | Cent% | Oppo% | divider | Soft% | Med% | Hard% | divider | SIERA | xFIP- | xFIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 1.00 | 11.1% | 44.4% | 44.4% | 25.0% | 25.0% | 30.0% | 30.0% | 40.0% | 20.0% | 50.0% | 30.0% | 95 | 4.68 | ||||||
| 2025 | KIA | KBO | 2.00 | 0.0% | 66.7% | 33.3% | 0.0% | 0.0% | 66.7% | 0.0% | 33.3% | 0.0% | 66.7% | 33.3% | 106 | 4.60 |
KBO
| Season | Team | Level | GB | FB | LD | IFFB | IFH | BU | BUH | RS | Balls | Strikes | Pitches | divider | EV | LA | Barrels | Barrel% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 4 | 4 | 1 | 1 | 19 | 32 | 51 | |||||||||
| 2025 | KIA | KBO | 2 | 1 | 0 | 0 | 4 | 6 | 10 |
| Season | Team | Level | GB | FB | LD | IFFB | IFH | BU | BUH | RS | Balls | Strikes | Pitches | divider | EV | LA | Barrels | Barrel% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 4 | 4 | 1 | 1 | 19 | 32 | 51 | |||||||||
| 2025 | KIA | KBO | 2 | 1 | 0 | 0 | 4 | 6 | 10 |
AveragesKBO
| Season | Team | Level | O-Swing% | Z-Swing% | Swing% | divider | O-Contact% | Z-Contact% | Contact% | Zone% | divider | F-Strike% | SwStr% | CStr% | CSW% | divider | Pace |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 43.1% | 90.9% | 50.0% | 3.9% | 19.6% | 23.5% | |||||||||
| 2025 | KIA | KBO | 50.0% | 100.0% | 33.3% | 0.0% | 10.0% | 10.0% |
| Season | Team | Level | O-Swing% | Z-Swing% | Swing% | divider | O-Contact% | Z-Contact% | Contact% | Zone% | divider | F-Strike% | SwStr% | CStr% | CSW% | divider | Pace |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | 43.1% | 90.9% | 50.0% | 3.9% | 19.6% | 23.5% | |||||||||
| 2025 | KIA | KBO | 50.0% | 100.0% | 33.3% | 0.0% | 10.0% | 10.0% |
KBO
| Season | Team | Level | Pos | G | GS | Inn | PO | A | divider | E | FE | TE | divider | DP | DPS | DPT | DPF | divider | Scp | divider | SB | CS | PB | WP | divider | FP | divider | TZ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | P | 3 | 0 | 2.3 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | |||||||||||||||
| 2025 | KIA | KBO | P | 1 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Season | Team | Level | Pos | G | GS | Inn | PO | A | divider | E | FE | TE | divider | DP | DPS | DPT | DPF | divider | Scp | divider | SB | CS | PB | WP | divider | FP | divider | TZ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | KIA | KBO | P | 3 | 0 | 2.3 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | |||||||||||||||
| 2025 | KIA | KBO | P | 1 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
