Batting
Pitching
- RosterResource
Gleiner Diaz
Seattle Mariners (A)P
Age: 23
Bats/Throws: R/R
6'0" / 170
DOB: 9/20/2003
(23 years, 15 days)
P
Player Dashboard:
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 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 | 6 | 0 | 1 | 13 | 0 | 18.0 | 8.50 | 2.00 | 0.00 | .340 | 60.0% | 45.1% | 0.0% | 4.50 | 3.28 | 4.15 | ||||||
| 2025 | SEA | MiLB | 21 | 6 | 3 | 4 | 29 | 0 | 39.0 | 9.69 | 2.77 | 0.92 | .368 | 53.1% | 49.1% | 10.8% | 7.15 | 4.76 | 4.26 | ||||||
| 2026 | Steamer | PROJ | 22 | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.22 | 5.18 | 1.28 | .290 | 70.9% | 43.1% | 5.13 | 5.49 | 5.48 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 22 | 0 | 0 | 0 | 1 | 0 | 1.3 | 5.68 | 4.44 | 1.43 | .274 | 70.0% | 5.19 | 5.58 | 0.0 | ||||||||
| 2026 | SEA | A | 22 | 2 | 3 | 3 | 36 | 0 | 54.2 | 11.52 | 1.98 | 0.82 | .358 | 64.5% | 31.9% | 7.9% | 4.28 | 3.86 | 4.56 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 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 | 6 | 0 | 1 | 13 | 0 | 18.0 | 8.50 | 2.00 | 0.00 | .340 | 60.0% | 45.1% | 0.0% | 4.50 | 3.28 | 4.15 | ||||||
| 2025 | SEA | MiLB | 21 | 6 | 3 | 4 | 29 | 0 | 39.0 | 9.69 | 2.77 | 0.92 | .368 | 53.1% | 49.1% | 10.8% | 7.15 | 4.76 | 4.26 | ||||||
| 2026 | Steamer | PROJ | 22 | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.22 | 5.18 | 1.28 | .290 | 70.9% | 43.1% | 5.13 | 5.49 | 5.48 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 22 | 0 | 0 | 0 | 1 | 0 | 1.3 | 5.68 | 4.44 | 1.43 | .274 | 70.0% | 5.19 | 5.58 | 0.0 | ||||||||
| 2026 | SEA | A | 22 | 2 | 3 | 3 | 36 | 0 | 54.2 | 11.52 | 1.98 | 0.82 | .358 | 64.5% | 31.9% | 7.9% | 4.28 | 3.86 | 4.56 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 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 | 6 | 0 | 4.50 | 13 | 0 | 0 | 0 | 1 | 0 | 1 | 18.0 | 77 | 18 | 10 | 9 | 0 | 4 | 0 | 3 | 1 | 1 | 17 | |
| 2025 | SEA | MiLB | 6 | 3 | 7.15 | 29 | 0 | 0 | 0 | 4 | 1 | 5 | 39.0 | 180 | 47 | 33 | 31 | 4 | 12 | 0 | 5 | 4 | 1 | 42 | |
| 2026 | Steamer | PROJ | 0 | 0 | 5.13 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 5.19 | 1 | 0 | 0 | 0 | 0 | 1.3 | 6 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2026 | SEA | A | 2 | 3 | 4.28 | 36 | 0 | 0 | 0 | 3 | 4 | 3 | 54.2 | 227 | 54 | 29 | 26 | 5 | 12 | 2 | 3 | 2 | 1 | 70 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 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 | 6 | 0 | 4.50 | 13 | 0 | 0 | 0 | 1 | 0 | 1 | 18.0 | 77 | 18 | 10 | 9 | 0 | 4 | 0 | 3 | 1 | 1 | 17 | |
| 2025 | SEA | MiLB | 6 | 3 | 7.15 | 29 | 0 | 0 | 0 | 4 | 1 | 5 | 39.0 | 180 | 47 | 33 | 31 | 4 | 12 | 0 | 5 | 4 | 1 | 42 | |
| 2026 | Steamer | PROJ | 0 | 0 | 5.13 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 5.19 | 1 | 0 | 0 | 0 | 0 | 1.3 | 6 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2026 | SEA | A | 2 | 3 | 4.28 | 36 | 0 | 0 | 0 | 3 | 4 | 3 | 54.2 | 227 | 54 | 29 | 26 | 5 | 12 | 2 | 3 | 2 | 1 | 70 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | 146 | 185 | 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 | SEA | CPX | 10.71 | 3.43 | 3.13 | 1.71 | 24.3% | 7.8% | 16.5% | .312 | 1.76 | .391 | 47.9% | 194 | 123 | 6.02 | ||||
| 2025 | SEA | A | 8.50 | 2.00 | 4.25 | 0.00 | 22.1% | 5.2% | 16.9% | .257 | 1.22 | .340 | 60.0% | 102 | 76 | 3.28 | ||||
| 2025 | SEA | MiLB | 9.69 | 2.77 | 3.50 | 0.92 | 23.3% | 6.7% | 16.7% | .288 | 1.51 | .368 | 53.1% | 152 | 101 | 4.76 | ||||
| 2026 | Steamer | PROJ | 6.22 | 5.18 | 1.20 | 1.28 | 15.1% | 12.6% | 2.5% | .264 | 1.62 | .290 | 70.9% | 5.49 | ||||||
| 2026 | OOPSY | PROJ | 5.68 | 4.44 | 1.28 | 1.43 | 13.4% | 10.4% | 2.9% | .260 | 1.58 | .274 | 70.0% | 5.58 | ||||||
| 2026 | SEA | A | 11.52 | 1.98 | 5.83 | 0.82 | 30.8% | 5.3% | 25.6% | .255 | 1.21 | .358 | 64.5% | 77 | 72 | 3.86 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | 146 | 185 | 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 | SEA | CPX | 10.71 | 3.43 | 3.13 | 1.71 | 24.3% | 7.8% | 16.5% | .312 | 1.76 | .391 | 47.9% | 194 | 123 | 6.02 | ||||
| 2025 | SEA | A | 8.50 | 2.00 | 4.25 | 0.00 | 22.1% | 5.2% | 16.9% | .257 | 1.22 | .340 | 60.0% | 102 | 76 | 3.28 | ||||
| 2025 | SEA | MiLB | 9.69 | 2.77 | 3.50 | 0.92 | 23.3% | 6.7% | 16.7% | .288 | 1.51 | .368 | 53.1% | 152 | 101 | 4.76 | ||||
| 2026 | Steamer | PROJ | 6.22 | 5.18 | 1.20 | 1.28 | 15.1% | 12.6% | 2.5% | .264 | 1.62 | .290 | 70.9% | 5.49 | ||||||
| 2026 | OOPSY | PROJ | 5.68 | 4.44 | 1.28 | 1.43 | 13.4% | 10.4% | 2.9% | .260 | 1.58 | .274 | 70.0% | 5.58 | ||||||
| 2026 | SEA | A | 11.52 | 1.98 | 5.83 | 0.82 | 30.8% | 5.3% | 25.6% | .255 | 1.21 | .358 | 64.5% | 77 | 72 | 3.86 |

