Gleiner Diaz
Seattle Mariners (A)P
Age: 21
Bats/Throws: R/R
6'0" / 170
DOB: 9/20/2003
(21 years, 10 months, 19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | SEA | DSL | 17 | 2 | 0 | 2 | 17 | 0 | 23.0 | 10.57 | 7.43 | 0.00 | .275 | 76.5% | 48.0% | 0.0% | 2.74 | 3.99 | 4.47 | ||||||
| 2023 | SEA | DSL | 19 | 1 | 2 | 0 | 11 | 9 | 45.0 | 9.40 | 4.20 | 0.00 | .275 | 78.7% | 64.4% | 0.0% | 2.40 | 3.96 | 4.33 | ||||||
| 2024 | SEA | CPX | 20 | 1 | 3 | 2 | 16 | 0 | 22.2 | 9.13 | 3.57 | 0.40 | .309 | 60.1% | 51.6% | 4.5% | 3.57 | 5.36 | 5.70 | ||||||
| 2024 | SEA | A+ | 20 | 0 | 0 | 0 | 5 | 0 | 5.2 | 9.53 | 11.12 | 1.59 | .231 | 75.5% | 28.6% | 11.1% | 6.35 | 7.94 | 7.54 | ||||||
| 2024 | SEA | MiLB | 20 | 1 | 3 | 2 | 21 | 0 | 28.1 | 9.21 | 5.08 | 0.64 | .296 | 63.6% | 47.4% | 6.5% | 4.13 | 5.88 | 6.07 | ||||||
| 2025 | Steamer | PROJ | 21 | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.58 | 5.62 | 1.29 | .292 | 70.8% | 42.7% | 5.26 | 5.62 | 5.54 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 21 | 0 | 0 | 0 | 1 | 0 | 1.3 | 6.70 | 5.19 | 1.53 | .274 | 72.5% | 5.22 | 5.78 | 0.0 | ||||||||
| 2025 | SEA | CPX | 21 | 0 | 3 | 3 | 16 | 0 | 21.0 | 10.71 | 3.43 | 1.71 | .391 | 47.9% | 52.3% | 21.1% | 9.43 | 6.02 | 4.36 | ||||||
| 2025 | SEA | A | 21 | 4 | 0 | 0 | 8 | 0 | 12.2 | 8.53 | 2.84 | 0.00 | .294 | 50.0% | 48.5% | 0.0% | 4.97 | 3.55 | 4.37 | ||||||
| 2025 | SEA | MiLB | 21 | 4 | 3 | 3 | 24 | 0 | 33.2 | 9.89 | 3.21 | 1.07 | .357 | 48.6% | 51.0% | 12.9% | 7.75 | 5.09 | 4.36 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.08 | 5.31 | 1.27 | .291 | 70.7% | 5.19 | 5.54 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 21 | 0 | 0 | 0 | 1 | 0 | 1.4 | 6.51 | 4.75 | 1.44 | .275 | 71.1% | 5.12 | 5.55 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | SEA | DSL | 17 | 2 | 0 | 2 | 17 | 0 | 23.0 | 10.57 | 7.43 | 0.00 | .275 | 76.5% | 48.0% | 0.0% | 2.74 | 3.99 | 4.47 | ||||||
| 2023 | SEA | DSL | 19 | 1 | 2 | 0 | 11 | 9 | 45.0 | 9.40 | 4.20 | 0.00 | .275 | 78.7% | 64.4% | 0.0% | 2.40 | 3.96 | 4.33 | ||||||
| 2024 | SEA | CPX | 20 | 1 | 3 | 2 | 16 | 0 | 22.2 | 9.13 | 3.57 | 0.40 | .309 | 60.1% | 51.6% | 4.5% | 3.57 | 5.36 | 5.70 | ||||||
| 2024 | SEA | A+ | 20 | 0 | 0 | 0 | 5 | 0 | 5.2 | 9.53 | 11.12 | 1.59 | .231 | 75.5% | 28.6% | 11.1% | 6.35 | 7.94 | 7.54 | ||||||
| 2024 | SEA | MiLB | 20 | 1 | 3 | 2 | 21 | 0 | 28.1 | 9.21 | 5.08 | 0.64 | .296 | 63.6% | 47.4% | 6.5% | 4.13 | 5.88 | 6.07 | ||||||
| 2025 | Steamer | PROJ | 21 | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.58 | 5.62 | 1.29 | .292 | 70.8% | 42.7% | 5.26 | 5.62 | 5.54 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 21 | 0 | 0 | 0 | 1 | 0 | 1.3 | 6.70 | 5.19 | 1.53 | .274 | 72.5% | 5.22 | 5.78 | 0.0 | ||||||||
| 2025 | SEA | CPX | 21 | 0 | 3 | 3 | 16 | 0 | 21.0 | 10.71 | 3.43 | 1.71 | .391 | 47.9% | 52.3% | 21.1% | 9.43 | 6.02 | 4.36 | ||||||
| 2025 | SEA | A | 21 | 4 | 0 | 0 | 8 | 0 | 12.2 | 8.53 | 2.84 | 0.00 | .294 | 50.0% | 48.5% | 0.0% | 4.97 | 3.55 | 4.37 | ||||||
| 2025 | SEA | MiLB | 21 | 4 | 3 | 3 | 24 | 0 | 33.2 | 9.89 | 3.21 | 1.07 | .357 | 48.6% | 51.0% | 12.9% | 7.75 | 5.09 | 4.36 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.08 | 5.31 | 1.27 | .291 | 70.7% | 5.19 | 5.54 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 21 | 0 | 0 | 0 | 1 | 0 | 1.4 | 6.51 | 4.75 | 1.44 | .275 | 71.1% | 5.12 | 5.55 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | SEA | DSL | 2 | 0 | 2.74 | 17 | 0 | 0 | 0 | 2 | 0 | 0 | 23.0 | 98 | 14 | 8 | 7 | 0 | 19 | 0 | 1 | 7 | 0 | 27 | |
| 2023 | SEA | DSL | 1 | 2 | 2.40 | 11 | 9 | 0 | 0 | 0 | 0 | 0 | 45.0 | 187 | 30 | 13 | 12 | 0 | 21 | 0 | 10 | 1 | 1 | 47 | |
| 2024 | SEA | CPX | 1 | 3 | 3.57 | 16 | 0 | 0 | 0 | 2 | 2 | 3 | 22.2 | 108 | 22 | 16 | 9 | 1 | 9 | 0 | 7 | 5 | 1 | 23 | |
| 2024 | SEA | A+ | 0 | 0 | 6.35 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 5.2 | 28 | 4 | 4 | 4 | 1 | 7 | 0 | 1 | 1 | 0 | 6 | |
| 2024 | SEA | MiLB | 1 | 3 | 4.13 | 21 | 0 | 0 | 0 | 2 | 2 | 3 | 28.1 | 136 | 26 | 20 | 13 | 2 | 16 | 0 | 8 | 6 | 1 | 29 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.26 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.22 | 1 | 0 | 0 | 0 | 0 | 1.3 | 6 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2025 | SEA | CPX | 0 | 3 | 9.43 | 16 | 0 | 0 | 0 | 3 | 1 | 4 | 21.0 | 103 | 29 | 23 | 22 | 4 | 8 | 0 | 2 | 3 | 0 | 25 | |
| 2025 | SEA | A | 4 | 0 | 4.97 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 12.2 | 52 | 10 | 8 | 7 | 0 | 4 | 0 | 2 | 1 | 1 | 12 | |
| 2025 | SEA | MiLB | 4 | 3 | 7.75 | 24 | 0 | 0 | 0 | 3 | 1 | 4 | 33.2 | 155 | 39 | 31 | 29 | 4 | 12 | 0 | 4 | 4 | 1 | 37 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.19 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.12 | 1 | 0 | 0 | 0 | 0 | 1.4 | 6 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | SEA | DSL | 2 | 0 | 2.74 | 17 | 0 | 0 | 0 | 2 | 0 | 0 | 23.0 | 98 | 14 | 8 | 7 | 0 | 19 | 0 | 1 | 7 | 0 | 27 | |
| 2023 | SEA | DSL | 1 | 2 | 2.40 | 11 | 9 | 0 | 0 | 0 | 0 | 0 | 45.0 | 187 | 30 | 13 | 12 | 0 | 21 | 0 | 10 | 1 | 1 | 47 | |
| 2024 | SEA | CPX | 1 | 3 | 3.57 | 16 | 0 | 0 | 0 | 2 | 2 | 3 | 22.2 | 108 | 22 | 16 | 9 | 1 | 9 | 0 | 7 | 5 | 1 | 23 | |
| 2024 | SEA | A+ | 0 | 0 | 6.35 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 5.2 | 28 | 4 | 4 | 4 | 1 | 7 | 0 | 1 | 1 | 0 | 6 | |
| 2024 | SEA | MiLB | 1 | 3 | 4.13 | 21 | 0 | 0 | 0 | 2 | 2 | 3 | 28.1 | 136 | 26 | 20 | 13 | 2 | 16 | 0 | 8 | 6 | 1 | 29 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.26 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.22 | 1 | 0 | 0 | 0 | 0 | 1.3 | 6 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2025 | SEA | CPX | 0 | 3 | 9.43 | 16 | 0 | 0 | 0 | 3 | 1 | 4 | 21.0 | 103 | 29 | 23 | 22 | 4 | 8 | 0 | 2 | 3 | 0 | 25 | |
| 2025 | SEA | A | 4 | 0 | 4.97 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 12.2 | 52 | 10 | 8 | 7 | 0 | 4 | 0 | 2 | 1 | 1 | 12 | |
| 2025 | SEA | MiLB | 4 | 3 | 7.75 | 24 | 0 | 0 | 0 | 3 | 1 | 4 | 33.2 | 155 | 39 | 31 | 29 | 4 | 12 | 0 | 4 | 4 | 1 | 37 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.19 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.12 | 1 | 0 | 0 | 0 | 0 | 1.4 | 6 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | SEA | DSL | 10.57 | 7.43 | 1.42 | 0.00 | 27.6% | 19.4% | 8.2% | .179 | 1.43 | .275 | 76.5% | 66 | 94 | 3.99 | ||||
| 2023 | SEA | DSL | 9.40 | 4.20 | 2.24 | 0.00 | 25.1% | 11.2% | 13.9% | .192 | 1.13 | .275 | 78.7% | 51 | 82 | 3.96 | ||||
| 2024 | SEA | CPX | 9.13 | 3.57 | 2.56 | 0.40 | 21.3% | 8.3% | 13.0% | .239 | 1.37 | .309 | 60.1% | 70 | 101 | 5.36 | ||||
| 2024 | SEA | A+ | 9.53 | 11.12 | 0.86 | 1.59 | 21.4% | 25.0% | -3.6% | .200 | 1.94 | .231 | 75.5% | 147 | 186 | 7.94 | ||||
| 2024 | SEA | MiLB | 9.21 | 5.08 | 1.81 | 0.64 | 21.3% | 11.8% | 9.6% | .232 | 1.48 | .296 | 63.6% | 85 | 118 | 5.88 | ||||
| 2025 | Steamer | PROJ | 6.58 | 5.62 | 1.17 | 1.29 | 15.9% | 13.6% | 2.3% | .263 | 1.66 | .292 | 70.8% | 5.62 | ||||||
| 2025 | OOPSY | PROJ | 6.70 | 5.19 | 1.29 | 1.53 | 15.0% | 11.6% | 3.4% | .255 | 1.68 | .274 | 72.5% | 5.78 | ||||||
| 2025 | SEA | CPX | 10.71 | 3.43 | 3.13 | 1.71 | 24.3% | 7.8% | 16.5% | .312 | 1.76 | .391 | 47.9% | 196 | 121 | 6.02 | ||||
| 2025 | SEA | A | 8.53 | 2.84 | 3.00 | 0.00 | 23.1% | 7.7% | 15.4% | .217 | 1.11 | .294 | 50.0% | 112 | 82 | 3.55 | ||||
| 2025 | SEA | MiLB | 9.89 | 3.21 | 3.08 | 1.07 | 23.9% | 7.7% | 16.1% | .281 | 1.51 | .357 | 48.6% | 164 | 106 | 5.09 | ||||
| 2025 | Steamer | ROS | 6.08 | 5.31 | 1.14 | 1.27 | 14.7% | 12.9% | 1.8% | .266 | 1.64 | .291 | 70.7% | 5.54 | ||||||
| 2025 | OOPSY | ROS | 6.51 | 4.75 | 1.37 | 1.44 | 15.2% | 11.1% | 4.1% | .255 | 1.60 | .275 | 71.1% | 5.55 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | SEA | DSL | 10.57 | 7.43 | 1.42 | 0.00 | 27.6% | 19.4% | 8.2% | .179 | 1.43 | .275 | 76.5% | 66 | 94 | 3.99 | ||||
| 2023 | SEA | DSL | 9.40 | 4.20 | 2.24 | 0.00 | 25.1% | 11.2% | 13.9% | .192 | 1.13 | .275 | 78.7% | 51 | 82 | 3.96 | ||||
| 2024 | SEA | CPX | 9.13 | 3.57 | 2.56 | 0.40 | 21.3% | 8.3% | 13.0% | .239 | 1.37 | .309 | 60.1% | 70 | 101 | 5.36 | ||||
| 2024 | SEA | A+ | 9.53 | 11.12 | 0.86 | 1.59 | 21.4% | 25.0% | -3.6% | .200 | 1.94 | .231 | 75.5% | 147 | 186 | 7.94 | ||||
| 2024 | SEA | MiLB | 9.21 | 5.08 | 1.81 | 0.64 | 21.3% | 11.8% | 9.6% | .232 | 1.48 | .296 | 63.6% | 85 | 118 | 5.88 | ||||
| 2025 | Steamer | PROJ | 6.58 | 5.62 | 1.17 | 1.29 | 15.9% | 13.6% | 2.3% | .263 | 1.66 | .292 | 70.8% | 5.62 | ||||||
| 2025 | OOPSY | PROJ | 6.70 | 5.19 | 1.29 | 1.53 | 15.0% | 11.6% | 3.4% | .255 | 1.68 | .274 | 72.5% | 5.78 | ||||||
| 2025 | SEA | CPX | 10.71 | 3.43 | 3.13 | 1.71 | 24.3% | 7.8% | 16.5% | .312 | 1.76 | .391 | 47.9% | 196 | 121 | 6.02 | ||||
| 2025 | SEA | A | 8.53 | 2.84 | 3.00 | 0.00 | 23.1% | 7.7% | 15.4% | .217 | 1.11 | .294 | 50.0% | 112 | 82 | 3.55 | ||||
| 2025 | SEA | MiLB | 9.89 | 3.21 | 3.08 | 1.07 | 23.9% | 7.7% | 16.1% | .281 | 1.51 | .357 | 48.6% | 164 | 106 | 5.09 | ||||
| 2025 | Steamer | ROS | 6.08 | 5.31 | 1.14 | 1.27 | 14.7% | 12.9% | 1.8% | .266 | 1.64 | .291 | 70.7% | 5.54 | ||||||
| 2025 | OOPSY | ROS | 6.51 | 4.75 | 1.37 | 1.44 | 15.2% | 11.1% | 4.1% | .255 | 1.60 | .275 | 71.1% | 5.55 |
