Josh Bostick
San Francisco Giants (A+)P
Age: 23
Bats/Throws: R/R
6'4" / 205
DOB: 10/20/2001
(23 years, 7 months, 25 days)
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Preseason ProjectionsIn-Season ProjectionsMinor Leagues
| Season | Team | Level | Age | W W - Wins | L L - Losses | SV SV - Saves | G G - Games Pitched | GS GS - Games Started | IP IP - Innings Pitched | divider | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | GB% GB% - Ground Ball Percentage (GB/BIP) | HR/FB HR/FB - Home Run to Fly Ball Ratio | divider | vFA vFA - Fourseam Fastball velocity (Pitch Info) | divider | ERA ERA - Earned Run Average ((ER*9)/IP) | xERA xERA - Expected ERA | FIP FIP - Fielder Independent Pitching on an ERA scale | xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced | WAR WAR - Wins Above Replacement |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | SFG | CPX | 21 | 0 | 0 | 0 | 1 | 0 | 1.2 | 5.40 | 5.40 | 0.00 | .429 | 50.0% | 28.6% | 0.0% | 10.80 | 5.53 | 6.77 | ||||||
| 2023 | SFG | CPX | 21 | 0 | 0 | 0 | 3 | 2 | 3.0 | 18.00 | 3.00 | 0.00 | .400 | 100.0% | 80.0% | 0.0% | 0.00 | 1.93 | 2.27 | ||||||
| 2023 | SFG | MiLB | 21 | 0 | 0 | 0 | 4 | 2 | 4.2 | 13.50 | 3.86 | 0.00 | .417 | 71.4% | 50.0% | 0.0% | 3.86 | 3.22 | 3.88 | ||||||
| 2024 | SFG | A | 22 | 2 | 9 | 1 | 26 | 23 | 107.1 | 10.15 | 3.69 | 0.92 | .318 | 66.6% | 35.9% | 8.9% | 4.78 | 4.71 | 4.60 | ||||||
| 2025 | Steamer | PROJ | 23 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.61 | 4.37 | 1.50 | .290 | 68.3% | 39.2% | 5.61 | 5.70 | 5.61 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 23 | 0 | 0 | 0 | 1 | 1 | 4.0 | 6.02 | 4.18 | 1.41 | .283 | 65.7% | 5.35 | 5.40 | 0.0 | ||||||||
| 2025 | SFG | A+ | 23 | 2 | 3 | 0 | 11 | 10 | 46.0 | 10.37 | 5.09 | 1.96 | .264 | 72.2% | 36.8% | 20.4% | 4.89 | 6.06 | 4.80 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 0 | 0 | 1.0 | 6.13 | 4.50 | 1.40 | .289 | 69.0% | 5.37 | 5.40 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 23 | 0 | 0 | 0 | 1 | 1 | 4.0 | 6.64 | 4.29 | 1.41 | .281 | 66.2% | 5.23 | 5.30 | 0.0 |
| Season | Team | Level | Age | W W - Wins | L L - Losses | SV SV - Saves | G G - Games Pitched | GS GS - Games Started | IP IP - Innings Pitched | divider | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | GB% GB% - Ground Ball Percentage (GB/BIP) | HR/FB HR/FB - Home Run to Fly Ball Ratio | divider | vFA vFA - Fourseam Fastball velocity (Pitch Info) | divider | ERA ERA - Earned Run Average ((ER*9)/IP) | xERA xERA - Expected ERA | FIP FIP - Fielder Independent Pitching on an ERA scale | xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced | WAR WAR - Wins Above Replacement |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | SFG | CPX | 21 | 0 | 0 | 0 | 1 | 0 | 1.2 | 5.40 | 5.40 | 0.00 | .429 | 50.0% | 28.6% | 0.0% | 10.80 | 5.53 | 6.77 | ||||||
| 2023 | SFG | CPX | 21 | 0 | 0 | 0 | 3 | 2 | 3.0 | 18.00 | 3.00 | 0.00 | .400 | 100.0% | 80.0% | 0.0% | 0.00 | 1.93 | 2.27 | ||||||
| 2023 | SFG | MiLB | 21 | 0 | 0 | 0 | 4 | 2 | 4.2 | 13.50 | 3.86 | 0.00 | .417 | 71.4% | 50.0% | 0.0% | 3.86 | 3.22 | 3.88 | ||||||
| 2024 | SFG | A | 22 | 2 | 9 | 1 | 26 | 23 | 107.1 | 10.15 | 3.69 | 0.92 | .318 | 66.6% | 35.9% | 8.9% | 4.78 | 4.71 | 4.60 | ||||||
| 2025 | Steamer | PROJ | 23 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.61 | 4.37 | 1.50 | .290 | 68.3% | 39.2% | 5.61 | 5.70 | 5.61 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 23 | 0 | 0 | 0 | 1 | 1 | 4.0 | 6.02 | 4.18 | 1.41 | .283 | 65.7% | 5.35 | 5.40 | 0.0 | ||||||||
| 2025 | SFG | A+ | 23 | 2 | 3 | 0 | 11 | 10 | 46.0 | 10.37 | 5.09 | 1.96 | .264 | 72.2% | 36.8% | 20.4% | 4.89 | 6.06 | 4.80 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 0 | 0 | 1.0 | 6.13 | 4.50 | 1.40 | .289 | 69.0% | 5.37 | 5.40 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 23 | 0 | 0 | 0 | 1 | 1 | 4.0 | 6.64 | 4.29 | 1.41 | .281 | 66.2% | 5.23 | 5.30 | 0.0 |
Preseason ProjectionsIn-Season ProjectionsMinor Leagues
| Season | Team | Level | W W - Wins | L L - Losses | ERA ERA - Earned Run Average ((ER*9)/IP) | G G - Games Pitched | GS GS - Games Started | QS | CG CG - Complete Games | ShO ShO - Shoutouts | SV SV - Saves | HLD HLD - Holds | BS BS - Blown Saves | IP IP - Innings Pitched | TBF TBF - Total Batters Faced | H H - Hits Allowed | R R - Runs Allowed | ER ER - Earned Runs | HR HR - Home Runs | BB BB - Walks | IBB IBB - Intentional | HBP HBP - Hit Batters | WP WP - Wild Pitches | BK BK - Balks | SO SO - Strikeouts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | SFG | CPX | 0 | 0 | 10.80 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.2 | 9 | 3 | 2 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | |
| 2023 | SFG | CPX | 0 | 0 | 0.00 | 3 | 2 | 0 | 0 | 0 | 1 | 0 | 3.0 | 12 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 6 | |
| 2023 | SFG | MiLB | 0 | 0 | 3.86 | 4 | 2 | 0 | 0 | 0 | 1 | 0 | 4.2 | 21 | 5 | 2 | 2 | 0 | 2 | 0 | 0 | 1 | 0 | 7 | |
| 2024 | SFG | A | 2 | 9 | 4.78 | 26 | 23 | 0 | 0 | 1 | 0 | 0 | 107.1 | 465 | 99 | 62 | 57 | 11 | 44 | 0 | 12 | 6 | 1 | 121 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.61 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.35 | 1 | 1 | 0 | 0 | 0 | 4.0 | 18 | 4 | 3 | 2 | 1 | 2 | 0 | 0 | 3 | |||||
| 2025 | SFG | A+ | 2 | 3 | 4.89 | 11 | 10 | 0 | 0 | 0 | 0 | 0 | 46.0 | 199 | 38 | 29 | 25 | 10 | 26 | 0 | 4 | 3 | 1 | 53 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.23 | 1 | 1 | 0 | 0 | 0 | 4.0 | 17 | 4 | 3 | 2 | 1 | 2 | 0 | 0 | 3 |
| Season | Team | Level | W W - Wins | L L - Losses | ERA ERA - Earned Run Average ((ER*9)/IP) | G G - Games Pitched | GS GS - Games Started | QS | CG CG - Complete Games | ShO ShO - Shoutouts | SV SV - Saves | HLD HLD - Holds | BS BS - Blown Saves | IP IP - Innings Pitched | TBF TBF - Total Batters Faced | H H - Hits Allowed | R R - Runs Allowed | ER ER - Earned Runs | HR HR - Home Runs | BB BB - Walks | IBB IBB - Intentional | HBP HBP - Hit Batters | WP WP - Wild Pitches | BK BK - Balks | SO SO - Strikeouts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | SFG | CPX | 0 | 0 | 10.80 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.2 | 9 | 3 | 2 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | |
| 2023 | SFG | CPX | 0 | 0 | 0.00 | 3 | 2 | 0 | 0 | 0 | 1 | 0 | 3.0 | 12 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 6 | |
| 2023 | SFG | MiLB | 0 | 0 | 3.86 | 4 | 2 | 0 | 0 | 0 | 1 | 0 | 4.2 | 21 | 5 | 2 | 2 | 0 | 2 | 0 | 0 | 1 | 0 | 7 | |
| 2024 | SFG | A | 2 | 9 | 4.78 | 26 | 23 | 0 | 0 | 1 | 0 | 0 | 107.1 | 465 | 99 | 62 | 57 | 11 | 44 | 0 | 12 | 6 | 1 | 121 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.61 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.35 | 1 | 1 | 0 | 0 | 0 | 4.0 | 18 | 4 | 3 | 2 | 1 | 2 | 0 | 0 | 3 | |||||
| 2025 | SFG | A+ | 2 | 3 | 4.89 | 11 | 10 | 0 | 0 | 0 | 0 | 0 | 46.0 | 199 | 38 | 29 | 25 | 10 | 26 | 0 | 4 | 3 | 1 | 53 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.23 | 1 | 1 | 0 | 0 | 0 | 4.0 | 17 | 4 | 3 | 2 | 1 | 2 | 0 | 0 | 3 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesAverages
| Season | Team | Level | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | K/BB K/BB - Strikeout to Walk Ratio (SO/BB) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | divider | K% K% - Strikeout Percentage (SO/TBF) | BB% BB% - Walk Percentage (BB/TBF) | K-BB% K-BB% - The difference between strikeout percentage and walk percentage | divider | AVG AVG - Batting Average Against | WHIP WHIP - Walks + Hits divided by Innings Pitched | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | divider | ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better | FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better | divider | FIP FIP - Fielder Independent Pitching on an ERA scale |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | SFG | CPX | 5.40 | 5.40 | 1.00 | 0.00 | 11.1% | 11.1% | 0.0% | .375 | 2.40 | .429 | 50.0% | 184 | 92 | 5.53 | ||||
| 2023 | SFG | CPX | 18.00 | 3.00 | 6.00 | 0.00 | 50.0% | 8.3% | 41.7% | .182 | 1.00 | .400 | 100.0% | 0 | 33 | 1.93 | ||||
| 2023 | SFG | MiLB | 13.50 | 3.86 | 3.50 | 0.00 | 33.3% | 9.5% | 23.8% | .263 | 1.50 | .417 | 71.4% | 66 | 54 | 3.22 | ||||
| 2024 | SFG | A | 10.15 | 3.69 | 2.75 | 0.92 | 26.0% | 9.5% | 16.6% | .242 | 1.33 | .318 | 66.6% | 99 | 96 | 4.71 | ||||
| 2025 | Steamer | PROJ | 5.61 | 4.37 | 1.28 | 1.50 | 13.6% | 10.6% | 3.0% | .275 | 1.59 | .290 | 68.3% | 5.70 | ||||||
| 2025 | OOPSY | PROJ | 6.02 | 4.18 | 1.44 | 1.41 | 15.4% | 10.7% | 4.7% | .263 | 1.47 | .283 | 65.7% | 5.40 | ||||||
| 2025 | SFG | A+ | 10.37 | 5.09 | 2.04 | 1.96 | 26.6% | 13.1% | 13.6% | .225 | 1.39 | .264 | 72.2% | 106 | 131 | 6.06 | ||||
| 2025 | Steamer | ROS | 6.13 | 4.50 | 1.36 | 1.40 | 15.0% | 11.0% | 4.0% | .267 | 1.57 | .289 | 69.0% | 5.40 | ||||||
| 2025 | OOPSY | ROS | 6.64 | 4.29 | 1.55 | 1.41 | 17.1% | 11.0% | 6.0% | .256 | 1.45 | .281 | 66.2% | 5.30 |
| Season | Team | Level | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | K/BB K/BB - Strikeout to Walk Ratio (SO/BB) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | divider | K% K% - Strikeout Percentage (SO/TBF) | BB% BB% - Walk Percentage (BB/TBF) | K-BB% K-BB% - The difference between strikeout percentage and walk percentage | divider | AVG AVG - Batting Average Against | WHIP WHIP - Walks + Hits divided by Innings Pitched | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | divider | ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better | FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better | divider | FIP FIP - Fielder Independent Pitching on an ERA scale |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | SFG | CPX | 5.40 | 5.40 | 1.00 | 0.00 | 11.1% | 11.1% | 0.0% | .375 | 2.40 | .429 | 50.0% | 184 | 92 | 5.53 | ||||
| 2023 | SFG | CPX | 18.00 | 3.00 | 6.00 | 0.00 | 50.0% | 8.3% | 41.7% | .182 | 1.00 | .400 | 100.0% | 0 | 33 | 1.93 | ||||
| 2023 | SFG | MiLB | 13.50 | 3.86 | 3.50 | 0.00 | 33.3% | 9.5% | 23.8% | .263 | 1.50 | .417 | 71.4% | 66 | 54 | 3.22 | ||||
| 2024 | SFG | A | 10.15 | 3.69 | 2.75 | 0.92 | 26.0% | 9.5% | 16.6% | .242 | 1.33 | .318 | 66.6% | 99 | 96 | 4.71 | ||||
| 2025 | Steamer | PROJ | 5.61 | 4.37 | 1.28 | 1.50 | 13.6% | 10.6% | 3.0% | .275 | 1.59 | .290 | 68.3% | 5.70 | ||||||
| 2025 | OOPSY | PROJ | 6.02 | 4.18 | 1.44 | 1.41 | 15.4% | 10.7% | 4.7% | .263 | 1.47 | .283 | 65.7% | 5.40 | ||||||
| 2025 | SFG | A+ | 10.37 | 5.09 | 2.04 | 1.96 | 26.6% | 13.1% | 13.6% | .225 | 1.39 | .264 | 72.2% | 106 | 131 | 6.06 | ||||
| 2025 | Steamer | ROS | 6.13 | 4.50 | 1.36 | 1.40 | 15.0% | 11.0% | 4.0% | .267 | 1.57 | .289 | 69.0% | 5.40 | ||||||
| 2025 | OOPSY | ROS | 6.64 | 4.29 | 1.55 | 1.41 | 17.1% | 11.0% | 6.0% | .256 | 1.45 | .281 | 66.2% | 5.30 |
