Isaac Stebens
Boston Red Sox (A+)P
Age: 23
Bats/Throws: L/R
6'0" / 194
DOB: 12/5/2001
(23 years, 7 months, 28 days)
P
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Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingCollege
| 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 | OKST | NCAA | 21 | 4 | 1 | 6 | 28 | 0 | 64.1 | 11.89 | 3.36 | 0.14 | .320 | 73.1% | 2.24 | 2.11 | |||||||||
| 2024 | BOS | A | 22 | 0 | 0 | 3 | 6 | 0 | 11.0 | 11.45 | 3.27 | 0.00 | .280 | 76.9% | 37.5% | 0.0% | 0.82 | 2.67 | 3.41 | ||||||
| 2024 | BOS | A+ | 22 | 3 | 3 | 5 | 29 | 0 | 51.1 | 12.80 | 5.44 | 0.70 | .339 | 76.6% | 38.8% | 8.9% | 3.68 | 3.77 | 3.87 | ||||||
| 2024 | BOS | MiLB | 22 | 3 | 3 | 8 | 35 | 0 | 62.1 | 12.56 | 5.05 | 0.58 | .329 | 76.7% | 38.6% | 7.4% | 3.18 | 3.58 | 3.79 | ||||||
| 2025 | BOS | ST | 23 | 0 | 0 | 0 | 3 | 0 | 1.1 | 6.75 | 13.50 | 0.00 | .333 | 100.0% | 66.7% | 0.0% | 0.00 | 6.73 | 6.73 | ||||||
| 2025 | Steamer | PROJ | 23 | 0 | 0 | 0 | 1 | 0 | 1.0 | 7.25 | 5.81 | 1.28 | .304 | 69.5% | 41.0% | 5.52 | 5.49 | 5.43 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 23 | 0 | 0 | 0 | 1 | 0 | 1.8 | 7.92 | 5.05 | 1.30 | .307 | 67.4% | 5.37 | 5.13 | 0.0 | ||||||||
| 2025 | BOS | A+ | 23 | 4 | 0 | 7 | 29 | 0 | 38.2 | 11.41 | 4.89 | 0.47 | .256 | 87.6% | 40.2% | 7.4% | 1.63 | 3.83 | 3.96 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 7.34 | 5.71 | 1.23 | .302 | 69.9% | 5.36 | 5.32 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 23 | 0 | 0 | 0 | 1 | 0 | 1.5 | 7.60 | 5.05 | 1.31 | .309 | 65.9% | 5.52 | 5.21 | 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 | OKST | NCAA | 21 | 4 | 1 | 6 | 28 | 0 | 64.1 | 11.89 | 3.36 | 0.14 | .320 | 73.1% | 2.24 | 2.11 | |||||||||
| 2024 | BOS | A | 22 | 0 | 0 | 3 | 6 | 0 | 11.0 | 11.45 | 3.27 | 0.00 | .280 | 76.9% | 37.5% | 0.0% | 0.82 | 2.67 | 3.41 | ||||||
| 2024 | BOS | A+ | 22 | 3 | 3 | 5 | 29 | 0 | 51.1 | 12.80 | 5.44 | 0.70 | .339 | 76.6% | 38.8% | 8.9% | 3.68 | 3.77 | 3.87 | ||||||
| 2024 | BOS | MiLB | 22 | 3 | 3 | 8 | 35 | 0 | 62.1 | 12.56 | 5.05 | 0.58 | .329 | 76.7% | 38.6% | 7.4% | 3.18 | 3.58 | 3.79 | ||||||
| 2025 | BOS | ST | 23 | 0 | 0 | 0 | 3 | 0 | 1.1 | 6.75 | 13.50 | 0.00 | .333 | 100.0% | 66.7% | 0.0% | 0.00 | 6.73 | 6.73 | ||||||
| 2025 | Steamer | PROJ | 23 | 0 | 0 | 0 | 1 | 0 | 1.0 | 7.25 | 5.81 | 1.28 | .304 | 69.5% | 41.0% | 5.52 | 5.49 | 5.43 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 23 | 0 | 0 | 0 | 1 | 0 | 1.8 | 7.92 | 5.05 | 1.30 | .307 | 67.4% | 5.37 | 5.13 | 0.0 | ||||||||
| 2025 | BOS | A+ | 23 | 4 | 0 | 7 | 29 | 0 | 38.2 | 11.41 | 4.89 | 0.47 | .256 | 87.6% | 40.2% | 7.4% | 1.63 | 3.83 | 3.96 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 7.34 | 5.71 | 1.23 | .302 | 69.9% | 5.36 | 5.32 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 23 | 0 | 0 | 0 | 1 | 0 | 1.5 | 7.60 | 5.05 | 1.31 | .309 | 65.9% | 5.52 | 5.21 | 0.0 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingCollege
| 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 | OKST | NCAA | 4 | 1 | 2.24 | 28 | 0 | 0 | 0 | 6 | 64.1 | 265 | 49 | 22 | 16 | 1 | 24 | 5 | 2 | 0 | 85 | ||||
| 2024 | BOS | A | 0 | 0 | 0.82 | 6 | 0 | 0 | 0 | 3 | 0 | 1 | 11.0 | 45 | 7 | 3 | 1 | 0 | 4 | 0 | 2 | 0 | 0 | 14 | |
| 2024 | BOS | A+ | 3 | 3 | 3.68 | 29 | 0 | 0 | 0 | 5 | 2 | 1 | 51.1 | 233 | 45 | 23 | 21 | 4 | 31 | 0 | 4 | 5 | 0 | 73 | |
| 2024 | BOS | MiLB | 3 | 3 | 3.18 | 35 | 0 | 0 | 0 | 8 | 2 | 2 | 62.1 | 278 | 52 | 26 | 22 | 4 | 35 | 0 | 6 | 5 | 0 | 87 | |
| 2025 | BOS | ST | 0 | 0 | 0.00 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1.1 | 6 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.52 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.37 | 1 | 0 | 0 | 0 | 0 | 1.8 | 8 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 2 | |||||
| 2025 | BOS | A+ | 4 | 0 | 1.63 | 29 | 0 | 0 | 0 | 7 | 0 | 0 | 38.2 | 166 | 24 | 9 | 7 | 2 | 21 | 0 | 8 | 2 | 0 | 49 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.36 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.52 | 1 | 0 | 0 | 0 | 0 | 1.5 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 |
| 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 | OKST | NCAA | 4 | 1 | 2.24 | 28 | 0 | 0 | 0 | 6 | 64.1 | 265 | 49 | 22 | 16 | 1 | 24 | 5 | 2 | 0 | 85 | ||||
| 2024 | BOS | A | 0 | 0 | 0.82 | 6 | 0 | 0 | 0 | 3 | 0 | 1 | 11.0 | 45 | 7 | 3 | 1 | 0 | 4 | 0 | 2 | 0 | 0 | 14 | |
| 2024 | BOS | A+ | 3 | 3 | 3.68 | 29 | 0 | 0 | 0 | 5 | 2 | 1 | 51.1 | 233 | 45 | 23 | 21 | 4 | 31 | 0 | 4 | 5 | 0 | 73 | |
| 2024 | BOS | MiLB | 3 | 3 | 3.18 | 35 | 0 | 0 | 0 | 8 | 2 | 2 | 62.1 | 278 | 52 | 26 | 22 | 4 | 35 | 0 | 6 | 5 | 0 | 87 | |
| 2025 | BOS | ST | 0 | 0 | 0.00 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1.1 | 6 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.52 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.37 | 1 | 0 | 0 | 0 | 0 | 1.8 | 8 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 2 | |||||
| 2025 | BOS | A+ | 4 | 0 | 1.63 | 29 | 0 | 0 | 0 | 7 | 0 | 0 | 38.2 | 166 | 24 | 9 | 7 | 2 | 21 | 0 | 8 | 2 | 0 | 49 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.36 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.52 | 1 | 0 | 0 | 0 | 0 | 1.5 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingAveragesCollege
| 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 | OKST | NCAA | 11.89 | 3.36 | 3.54 | 0.14 | 32.1% | 9.1% | 23.0% | .208 | 1.13 | .320 | 73.1% | 2.11 | ||||||
| 2024 | BOS | A | 11.45 | 3.27 | 3.50 | 0.00 | 31.1% | 8.9% | 22.2% | .179 | 1.00 | .280 | 76.9% | 20 | 69 | 2.67 | ||||
| 2024 | BOS | A+ | 12.80 | 5.44 | 2.35 | 0.70 | 31.3% | 13.3% | 18.0% | .227 | 1.48 | .339 | 76.6% | 89 | 93 | 3.77 | ||||
| 2024 | BOS | MiLB | 12.56 | 5.05 | 2.49 | 0.58 | 31.3% | 12.6% | 18.7% | .219 | 1.40 | .329 | 76.7% | 77 | 89 | 3.58 | ||||
| 2025 | BOS | ST | 6.75 | 13.50 | 0.50 | 0.00 | 16.7% | 33.3% | -16.7% | .250 | 2.25 | .333 | 100.0% | 0 | 137 | 6.73 | ||||
| 2025 | Steamer | PROJ | 7.25 | 5.81 | 1.25 | 1.28 | 17.5% | 14.0% | 3.5% | .266 | 1.69 | .304 | 69.5% | 5.49 | ||||||
| 2025 | OOPSY | PROJ | 7.92 | 5.05 | 1.57 | 1.30 | 19.7% | 12.5% | 7.1% | .263 | 1.58 | .307 | 67.4% | 5.13 | ||||||
| 2025 | BOS | A+ | 11.41 | 4.89 | 2.33 | 0.47 | 29.5% | 12.7% | 16.9% | .175 | 1.16 | .256 | 87.6% | 40 | 96 | 3.83 | ||||
| 2025 | Steamer | ROS | 7.34 | 5.71 | 1.28 | 1.23 | 17.7% | 13.7% | 3.9% | .264 | 1.67 | .302 | 69.9% | 5.32 | ||||||
| 2025 | OOPSY | ROS | 7.60 | 5.05 | 1.51 | 1.31 | 19.1% | 12.7% | 6.4% | .267 | 1.57 | .309 | 65.9% | 5.21 |
| 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 | OKST | NCAA | 11.89 | 3.36 | 3.54 | 0.14 | 32.1% | 9.1% | 23.0% | .208 | 1.13 | .320 | 73.1% | 2.11 | ||||||
| 2024 | BOS | A | 11.45 | 3.27 | 3.50 | 0.00 | 31.1% | 8.9% | 22.2% | .179 | 1.00 | .280 | 76.9% | 20 | 69 | 2.67 | ||||
| 2024 | BOS | A+ | 12.80 | 5.44 | 2.35 | 0.70 | 31.3% | 13.3% | 18.0% | .227 | 1.48 | .339 | 76.6% | 89 | 93 | 3.77 | ||||
| 2024 | BOS | MiLB | 12.56 | 5.05 | 2.49 | 0.58 | 31.3% | 12.6% | 18.7% | .219 | 1.40 | .329 | 76.7% | 77 | 89 | 3.58 | ||||
| 2025 | BOS | ST | 6.75 | 13.50 | 0.50 | 0.00 | 16.7% | 33.3% | -16.7% | .250 | 2.25 | .333 | 100.0% | 0 | 137 | 6.73 | ||||
| 2025 | Steamer | PROJ | 7.25 | 5.81 | 1.25 | 1.28 | 17.5% | 14.0% | 3.5% | .266 | 1.69 | .304 | 69.5% | 5.49 | ||||||
| 2025 | OOPSY | PROJ | 7.92 | 5.05 | 1.57 | 1.30 | 19.7% | 12.5% | 7.1% | .263 | 1.58 | .307 | 67.4% | 5.13 | ||||||
| 2025 | BOS | A+ | 11.41 | 4.89 | 2.33 | 0.47 | 29.5% | 12.7% | 16.9% | .175 | 1.16 | .256 | 87.6% | 40 | 96 | 3.83 | ||||
| 2025 | Steamer | ROS | 7.34 | 5.71 | 1.28 | 1.23 | 17.7% | 13.7% | 3.9% | .264 | 1.67 | .302 | 69.9% | 5.32 | ||||||
| 2025 | OOPSY | ROS | 7.60 | 5.05 | 1.51 | 1.31 | 19.1% | 12.7% | 6.4% | .267 | 1.57 | .309 | 65.9% | 5.21 |
