Jefferson Jean
Free Agent (A)P
Age: 21
Bats/Throws: R/R
6'3" / 170
DOB: 1/29/2005
(21 years, 8 months, 17 days)
P
Player Dashboard:
RosterResource
Rule 5 Eligible
Eligible
News Settings
Article Source
All
FG
RG
Show
RosterResource
Rule 5 Eligible
Eligible
News Settings
Article Source
All
FG
RG
Show
Quick Links
More
Stats
Stat Groups:
Select
You can shift + click on full MLB seasons in Season Stats and games in Game Logs to select spans for aggregate stats. Read more here
Heat Map:
Off
On
Preseason ProjectionsMinor Leagues
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | OAK | DSL | 17 | 0 | 0 | 0 | 6 | 6 | 7.1 | 11.05 | 4.91 | 0.00 | .278 | 63.6% | 66.7% | 0.0% | 4.91 | 3.81 | 4.20 | ||||||
| 2023 | OAK | CPX | 18 | 0 | 1 | 0 | 2 | 2 | 5.1 | 5.06 | 5.06 | 1.69 | .381 | 66.0% | 57.1% | 14.3% | 6.75 | 7.94 | 6.85 | ||||||
| 2024 | OAK | CPX | 19 | 0 | 0 | 0 | 5 | 3 | 18.1 | 16.20 | 6.87 | 0.98 | .303 | 78.5% | 48.5% | 15.4% | 2.95 | 4.97 | 4.22 | ||||||
| 2024 | OAK | A | 19 | 0 | 6 | 1 | 9 | 7 | 27.0 | 8.33 | 8.67 | 1.67 | .329 | 59.3% | 44.7% | 16.1% | 9.33 | 7.85 | 6.65 | ||||||
| 2024 | OAK | MiLB | 19 | 0 | 6 | 1 | 14 | 10 | 45.1 | 11.51 | 7.94 | 1.39 | .322 | 65.2% | 45.8% | 15.9% | 6.75 | 6.68 | 5.67 | ||||||
| 2025 | OAK | A | 20 | 3 | 9 | 1 | 24 | 20 | 87.0 | 9.72 | 6.21 | 0.62 | .313 | 67.7% | 47.8% | 7.9% | 5.59 | 5.53 | 5.39 | ||||||
| 2026 | Steamer | PROJ | 21 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.36 | 6.18 | 1.47 | .298 | 67.9% | 43.4% | 6.25 | 6.34 | 6.08 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 21 | 0 | 0 | 0 | 1 | 1 | 3.5 | 5.26 | 6.26 | 1.52 | .294 | 66.1% | 6.39 | 6.44 | 0.0 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | OAK | DSL | 17 | 0 | 0 | 0 | 6 | 6 | 7.1 | 11.05 | 4.91 | 0.00 | .278 | 63.6% | 66.7% | 0.0% | 4.91 | 3.81 | 4.20 | ||||||
| 2023 | OAK | CPX | 18 | 0 | 1 | 0 | 2 | 2 | 5.1 | 5.06 | 5.06 | 1.69 | .381 | 66.0% | 57.1% | 14.3% | 6.75 | 7.94 | 6.85 | ||||||
| 2024 | OAK | CPX | 19 | 0 | 0 | 0 | 5 | 3 | 18.1 | 16.20 | 6.87 | 0.98 | .303 | 78.5% | 48.5% | 15.4% | 2.95 | 4.97 | 4.22 | ||||||
| 2024 | OAK | A | 19 | 0 | 6 | 1 | 9 | 7 | 27.0 | 8.33 | 8.67 | 1.67 | .329 | 59.3% | 44.7% | 16.1% | 9.33 | 7.85 | 6.65 | ||||||
| 2024 | OAK | MiLB | 19 | 0 | 6 | 1 | 14 | 10 | 45.1 | 11.51 | 7.94 | 1.39 | .322 | 65.2% | 45.8% | 15.9% | 6.75 | 6.68 | 5.67 | ||||||
| 2025 | OAK | A | 20 | 3 | 9 | 1 | 24 | 20 | 87.0 | 9.72 | 6.21 | 0.62 | .313 | 67.7% | 47.8% | 7.9% | 5.59 | 5.53 | 5.39 | ||||||
| 2026 | Steamer | PROJ | 21 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.36 | 6.18 | 1.47 | .298 | 67.9% | 43.4% | 6.25 | 6.34 | 6.08 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 21 | 0 | 0 | 0 | 1 | 1 | 3.5 | 5.26 | 6.26 | 1.52 | .294 | 66.1% | 6.39 | 6.44 | 0.0 |
Preseason ProjectionsMinor Leagues
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | OAK | DSL | 0 | 0 | 4.91 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 7.1 | 33 | 5 | 4 | 4 | 0 | 4 | 0 | 2 | 0 | 0 | 9 | |
| 2023 | OAK | CPX | 0 | 1 | 6.75 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 5.1 | 28 | 9 | 5 | 4 | 1 | 3 | 0 | 0 | 1 | 2 | 3 | |
| 2024 | OAK | CPX | 0 | 0 | 2.95 | 5 | 3 | 0 | 0 | 0 | 1 | 0 | 18.1 | 83 | 12 | 8 | 6 | 2 | 14 | 0 | 1 | 5 | 0 | 33 | |
| 2024 | OAK | A | 0 | 6 | 9.33 | 9 | 7 | 0 | 0 | 1 | 0 | 0 | 27.0 | 141 | 32 | 29 | 28 | 5 | 26 | 0 | 3 | 5 | 0 | 25 | |
| 2024 | OAK | MiLB | 0 | 6 | 6.75 | 14 | 10 | 0 | 0 | 1 | 1 | 0 | 45.1 | 224 | 44 | 37 | 34 | 7 | 40 | 0 | 4 | 10 | 0 | 58 | |
| 2025 | OAK | A | 3 | 9 | 5.59 | 24 | 20 | 0 | 0 | 1 | 1 | 0 | 87.0 | 411 | 78 | 57 | 54 | 6 | 60 | 0 | 21 | 16 | 2 | 94 | |
| 2026 | Steamer | PROJ | 0 | 0 | 6.25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 6.39 | 1 | 1 | 0 | 0 | 0 | 3.5 | 17 | 4 | 3 | 2 | 1 | 2 | 0 | 0 | 2 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | OAK | DSL | 0 | 0 | 4.91 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 7.1 | 33 | 5 | 4 | 4 | 0 | 4 | 0 | 2 | 0 | 0 | 9 | |
| 2023 | OAK | CPX | 0 | 1 | 6.75 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 5.1 | 28 | 9 | 5 | 4 | 1 | 3 | 0 | 0 | 1 | 2 | 3 | |
| 2024 | OAK | CPX | 0 | 0 | 2.95 | 5 | 3 | 0 | 0 | 0 | 1 | 0 | 18.1 | 83 | 12 | 8 | 6 | 2 | 14 | 0 | 1 | 5 | 0 | 33 | |
| 2024 | OAK | A | 0 | 6 | 9.33 | 9 | 7 | 0 | 0 | 1 | 0 | 0 | 27.0 | 141 | 32 | 29 | 28 | 5 | 26 | 0 | 3 | 5 | 0 | 25 | |
| 2024 | OAK | MiLB | 0 | 6 | 6.75 | 14 | 10 | 0 | 0 | 1 | 1 | 0 | 45.1 | 224 | 44 | 37 | 34 | 7 | 40 | 0 | 4 | 10 | 0 | 58 | |
| 2025 | OAK | A | 3 | 9 | 5.59 | 24 | 20 | 0 | 0 | 1 | 1 | 0 | 87.0 | 411 | 78 | 57 | 54 | 6 | 60 | 0 | 21 | 16 | 2 | 94 | |
| 2026 | Steamer | PROJ | 0 | 0 | 6.25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 6.39 | 1 | 1 | 0 | 0 | 0 | 3.5 | 17 | 4 | 3 | 2 | 1 | 2 | 0 | 0 | 2 |
Preseason ProjectionsMinor LeaguesAverages
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | OAK | DSL | 11.05 | 4.91 | 2.25 | 0.00 | 27.3% | 12.1% | 15.2% | .185 | 1.23 | .278 | 63.6% | 113 | 85 | 3.81 | ||||
| 2023 | OAK | CPX | 5.06 | 5.06 | 1.00 | 1.69 | 10.7% | 10.7% | 0.0% | .360 | 2.25 | .381 | 66.0% | 112 | 140 | 7.94 | ||||
| 2024 | OAK | CPX | 16.20 | 6.87 | 2.36 | 0.98 | 39.8% | 16.9% | 22.9% | .176 | 1.42 | .303 | 78.5% | 52 | 93 | 4.97 | ||||
| 2024 | OAK | A | 8.33 | 8.67 | 0.96 | 1.67 | 17.7% | 18.4% | -0.7% | .286 | 2.15 | .329 | 59.3% | 187 | 156 | 7.85 | ||||
| 2024 | OAK | MiLB | 11.51 | 7.94 | 1.45 | 1.39 | 25.9% | 17.9% | 8.0% | .244 | 1.85 | .322 | 65.2% | 133 | 131 | 6.68 | ||||
| 2025 | OAK | A | 9.72 | 6.21 | 1.57 | 0.62 | 22.9% | 14.6% | 8.3% | .236 | 1.59 | .313 | 67.7% | 119 | 117 | 5.53 | ||||
| 2026 | Steamer | PROJ | 5.36 | 6.18 | 0.87 | 1.47 | 12.5% | 14.4% | -1.9% | .283 | 1.82 | .298 | 67.9% | 6.34 | ||||||
| 2026 | OOPSY | PROJ | 5.26 | 6.26 | 0.84 | 1.52 | 12.2% | 14.5% | -2.3% | .281 | 1.83 | .294 | 66.1% | 6.44 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | OAK | DSL | 11.05 | 4.91 | 2.25 | 0.00 | 27.3% | 12.1% | 15.2% | .185 | 1.23 | .278 | 63.6% | 113 | 85 | 3.81 | ||||
| 2023 | OAK | CPX | 5.06 | 5.06 | 1.00 | 1.69 | 10.7% | 10.7% | 0.0% | .360 | 2.25 | .381 | 66.0% | 112 | 140 | 7.94 | ||||
| 2024 | OAK | CPX | 16.20 | 6.87 | 2.36 | 0.98 | 39.8% | 16.9% | 22.9% | .176 | 1.42 | .303 | 78.5% | 52 | 93 | 4.97 | ||||
| 2024 | OAK | A | 8.33 | 8.67 | 0.96 | 1.67 | 17.7% | 18.4% | -0.7% | .286 | 2.15 | .329 | 59.3% | 187 | 156 | 7.85 | ||||
| 2024 | OAK | MiLB | 11.51 | 7.94 | 1.45 | 1.39 | 25.9% | 17.9% | 8.0% | .244 | 1.85 | .322 | 65.2% | 133 | 131 | 6.68 | ||||
| 2025 | OAK | A | 9.72 | 6.21 | 1.57 | 0.62 | 22.9% | 14.6% | 8.3% | .236 | 1.59 | .313 | 67.7% | 119 | 117 | 5.53 | ||||
| 2026 | Steamer | PROJ | 5.36 | 6.18 | 0.87 | 1.47 | 12.5% | 14.4% | -1.9% | .283 | 1.82 | .298 | 67.9% | 6.34 | ||||||
| 2026 | OOPSY | PROJ | 5.26 | 6.26 | 0.84 | 1.52 | 12.2% | 14.5% | -2.3% | .281 | 1.83 | .294 | 66.1% | 6.44 |
Preseason ProjectionsMinor Leagues
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | OAK | DSL | 3.00 | 11.1% | 66.7% | 22.2% | 0.0% | 0.0% | 38.9% | 11.1% | 50.0% | 92 | 4.20 | |||||||||
| 2023 | OAK | CPX | 1.71 | 9.5% | 57.1% | 33.3% | 0.0% | 14.3% | 31.8% | 27.3% | 40.9% | 119 | 6.85 | |||||||||
| 2024 | OAK | CPX | 1.23 | 12.1% | 48.5% | 39.4% | 15.4% | 15.4% | 45.7% | 20.0% | 34.3% | 78 | 4.22 | |||||||||
| 2024 | OAK | A | 1.23 | 18.8% | 44.7% | 36.5% | 9.7% | 16.1% | 46.0% | 21.8% | 32.2% | 139 | 6.65 | |||||||||
| 2024 | OAK | MiLB | 1.23 | 16.9% | 45.8% | 37.3% | 11.4% | 15.9% | 45.9% | 21.3% | 32.8% | 114 | 5.67 | |||||||||
| 2025 | OAK | A | 1.43 | 18.9% | 47.8% | 33.3% | 26.3% | 7.9% | 40.3% | 25.0% | 34.7% | 119 | 5.39 | |||||||||
| 2026 | Steamer | PROJ | 20.8% | 43.4% | 35.8% | 6.08 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | OAK | DSL | 3.00 | 11.1% | 66.7% | 22.2% | 0.0% | 0.0% | 38.9% | 11.1% | 50.0% | 92 | 4.20 | |||||||||
| 2023 | OAK | CPX | 1.71 | 9.5% | 57.1% | 33.3% | 0.0% | 14.3% | 31.8% | 27.3% | 40.9% | 119 | 6.85 | |||||||||
| 2024 | OAK | CPX | 1.23 | 12.1% | 48.5% | 39.4% | 15.4% | 15.4% | 45.7% | 20.0% | 34.3% | 78 | 4.22 | |||||||||
| 2024 | OAK | A | 1.23 | 18.8% | 44.7% | 36.5% | 9.7% | 16.1% | 46.0% | 21.8% | 32.2% | 139 | 6.65 | |||||||||
| 2024 | OAK | MiLB | 1.23 | 16.9% | 45.8% | 37.3% | 11.4% | 15.9% | 45.9% | 21.3% | 32.8% | 114 | 5.67 | |||||||||
| 2025 | OAK | A | 1.43 | 18.9% | 47.8% | 33.3% | 26.3% | 7.9% | 40.3% | 25.0% | 34.7% | 119 | 5.39 | |||||||||
| 2026 | Steamer | PROJ | 20.8% | 43.4% | 35.8% | 6.08 |
Preseason ProjectionsMinor Leagues
MLB F-Strike%, SwStr%, CStr%, CSW% are from the Sports Info Solution data source.
All MiLB and Pace data are from Statcast.
All MiLB and Pace data are from Statcast.
Preseason ProjectionsMinor LeaguesAverages
| Season | Team | Level | O-Swing% | Z-Swing% | Swing% | divider | O-Contact% | Z-Contact% | Contact% | Zone% | divider | F-Strike% | SwStr% | CStr% | CSW% | divider | Pace |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | OAK | DSL | 56.5% | 46.2% | 21.2% | 30.4% | 8.7% | 39.1% | |||||||||
| 2023 | OAK | CPX | 63.0% | 75.9% | 10.7% | 15.2% | 6.5% | 21.7% | |||||||||
| 2024 | OAK | CPX | 44.8% | 45.2% | 31.3% | 24.5% | 14.1% | 38.6% | |||||||||
| 2024 | OAK | A | 41.4% | 73.0% | 41.8% | 11.2% | 12.6% | 23.8% | |||||||||
| 2024 | OAK | MiLB | 42.5% | 63.4% | 37.9% | 15.5% | 13.1% | 28.6% | |||||||||
| 2025 | OAK | A | 40.8% | 73.5% | 45.3% | 10.8% | 15.5% | 26.3% |
| Season | Team | Level | O-Swing% | Z-Swing% | Swing% | divider | O-Contact% | Z-Contact% | Contact% | Zone% | divider | F-Strike% | SwStr% | CStr% | CSW% | divider | Pace |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | OAK | DSL | 56.5% | 46.2% | 21.2% | 30.4% | 8.7% | 39.1% | |||||||||
| 2023 | OAK | CPX | 63.0% | 75.9% | 10.7% | 15.2% | 6.5% | 21.7% | |||||||||
| 2024 | OAK | CPX | 44.8% | 45.2% | 31.3% | 24.5% | 14.1% | 38.6% | |||||||||
| 2024 | OAK | A | 41.4% | 73.0% | 41.8% | 11.2% | 12.6% | 23.8% | |||||||||
| 2024 | OAK | MiLB | 42.5% | 63.4% | 37.9% | 15.5% | 13.1% | 28.6% | |||||||||
| 2025 | OAK | A | 40.8% | 73.5% | 45.3% | 10.8% | 15.5% | 26.3% |
