Jose Zerpa
Seattle Mariners (A+)P
Age: 20
Bats/Throws: R/R
6'2" / 180
DOB: 10/19/2004
(20 years, 6 months, 16 days)
P
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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 | SEA | DSL | 18 | 3 | 2 | 1 | 12 | 0 | 23.1 | 13.11 | 3.09 | 0.00 | .296 | 62.5% | 48.1% | 0.0% | 2.70 | 2.09 | 2.65 | ||||||
| 2024 | SEA | CPX | 19 | 1 | 1 | 1 | 10 | 0 | 10.2 | 7.59 | 5.91 | 0.84 | .387 | 71.4% | 25.0% | 7.1% | 4.22 | 6.48 | 6.49 | ||||||
| 2025 | OOPSY | PROJ | 20 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.83 | 5.25 | 1.65 | .279 | 68.5% | 5.86 | 6.18 | 0.0 | ||||||||
| 2025 | SEA | A+ | 20 | 0 | 0 | 0 | 4 | 0 | 6.1 | 4.26 | 2.84 | 0.00 | .211 | 33.3% | 52.6% | 0.0% | 5.68 | 3.68 | 4.96 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.39 | 5.72 | 1.33 | .287 | 71.2% | 5.27 | 5.58 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 20 | 0 | 0 | 0 | 1 | 0 | 1.2 | 6.42 | 4.07 | 1.39 | .267 | 69.0% | 4.87 | 5.26 | 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 | SEA | DSL | 18 | 3 | 2 | 1 | 12 | 0 | 23.1 | 13.11 | 3.09 | 0.00 | .296 | 62.5% | 48.1% | 0.0% | 2.70 | 2.09 | 2.65 | ||||||
| 2024 | SEA | CPX | 19 | 1 | 1 | 1 | 10 | 0 | 10.2 | 7.59 | 5.91 | 0.84 | .387 | 71.4% | 25.0% | 7.1% | 4.22 | 6.48 | 6.49 | ||||||
| 2025 | OOPSY | PROJ | 20 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.83 | 5.25 | 1.65 | .279 | 68.5% | 5.86 | 6.18 | 0.0 | ||||||||
| 2025 | SEA | A+ | 20 | 0 | 0 | 0 | 4 | 0 | 6.1 | 4.26 | 2.84 | 0.00 | .211 | 33.3% | 52.6% | 0.0% | 5.68 | 3.68 | 4.96 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.39 | 5.72 | 1.33 | .287 | 71.2% | 5.27 | 5.58 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 20 | 0 | 0 | 0 | 1 | 0 | 1.2 | 6.42 | 4.07 | 1.39 | .267 | 69.0% | 4.87 | 5.26 | 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 | SEA | DSL | 3 | 2 | 2.70 | 12 | 0 | 0 | 0 | 1 | 1 | 1 | 23.1 | 96 | 16 | 9 | 7 | 0 | 8 | 0 | 0 | 2 | 1 | 34 | |
| 2024 | SEA | CPX | 1 | 1 | 4.22 | 10 | 0 | 0 | 0 | 1 | 1 | 2 | 10.2 | 49 | 13 | 7 | 5 | 1 | 7 | 1 | 1 | 2 | 0 | 9 | |
| 2025 | OOPSY | PROJ | 0 | 0 | 5.86 | 1 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2025 | SEA | A+ | 0 | 0 | 5.68 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 6.1 | 24 | 4 | 4 | 4 | 0 | 2 | 0 | 0 | 1 | 0 | 3 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.27 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 4.87 | 1 | 0 | 0 | 0 | 0 | 1.2 | 5 | 1 | 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 | SEA | DSL | 3 | 2 | 2.70 | 12 | 0 | 0 | 0 | 1 | 1 | 1 | 23.1 | 96 | 16 | 9 | 7 | 0 | 8 | 0 | 0 | 2 | 1 | 34 | |
| 2024 | SEA | CPX | 1 | 1 | 4.22 | 10 | 0 | 0 | 0 | 1 | 1 | 2 | 10.2 | 49 | 13 | 7 | 5 | 1 | 7 | 1 | 1 | 2 | 0 | 9 | |
| 2025 | OOPSY | PROJ | 0 | 0 | 5.86 | 1 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2025 | SEA | A+ | 0 | 0 | 5.68 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 6.1 | 24 | 4 | 4 | 4 | 0 | 2 | 0 | 0 | 1 | 0 | 3 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.27 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 4.87 | 1 | 0 | 0 | 0 | 0 | 1.2 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 |
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 | SEA | DSL | 13.11 | 3.09 | 4.25 | 0.00 | 35.4% | 8.3% | 27.1% | .182 | 1.03 | .296 | 62.5% | 58 | 43 | 2.09 | ||||
| 2024 | SEA | CPX | 7.59 | 5.91 | 1.29 | 0.84 | 18.4% | 14.3% | 4.1% | .317 | 1.88 | .387 | 71.4% | 82 | 122 | 6.48 | ||||
| 2025 | OOPSY | PROJ | 5.83 | 5.25 | 1.11 | 1.65 | 13.5% | 12.1% | 1.3% | .268 | 1.70 | .279 | 68.5% | 6.18 | ||||||
| 2025 | SEA | A+ | 4.26 | 2.84 | 1.50 | 0.00 | 12.5% | 8.3% | 4.2% | .182 | 0.95 | .211 | 33.3% | 116 | 76 | 3.68 | ||||
| 2025 | Steamer | ROS | 6.39 | 5.72 | 1.12 | 1.33 | 15.4% | 13.8% | 1.6% | .262 | 1.67 | .287 | 71.2% | 5.58 | ||||||
| 2025 | OOPSY | ROS | 6.42 | 4.07 | 1.58 | 1.39 | 16.1% | 10.2% | 5.9% | .248 | 1.42 | .267 | 69.0% | 5.26 |
| 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 | SEA | DSL | 13.11 | 3.09 | 4.25 | 0.00 | 35.4% | 8.3% | 27.1% | .182 | 1.03 | .296 | 62.5% | 58 | 43 | 2.09 | ||||
| 2024 | SEA | CPX | 7.59 | 5.91 | 1.29 | 0.84 | 18.4% | 14.3% | 4.1% | .317 | 1.88 | .387 | 71.4% | 82 | 122 | 6.48 | ||||
| 2025 | OOPSY | PROJ | 5.83 | 5.25 | 1.11 | 1.65 | 13.5% | 12.1% | 1.3% | .268 | 1.70 | .279 | 68.5% | 6.18 | ||||||
| 2025 | SEA | A+ | 4.26 | 2.84 | 1.50 | 0.00 | 12.5% | 8.3% | 4.2% | .182 | 0.95 | .211 | 33.3% | 116 | 76 | 3.68 | ||||
| 2025 | Steamer | ROS | 6.39 | 5.72 | 1.12 | 1.33 | 15.4% | 13.8% | 1.6% | .262 | 1.67 | .287 | 71.2% | 5.58 | ||||||
| 2025 | OOPSY | ROS | 6.42 | 4.07 | 1.58 | 1.39 | 16.1% | 10.2% | 5.9% | .248 | 1.42 | .267 | 69.0% | 5.26 |
