Miles Mastrobuoni
Bats L Throws R5'11" 185 lbBorn 1995 San Ramon, USADebut 2022Team SEADraft 2016 R14 #420 Tampa Bay Rays, Nevada
Projections
2027 NEXT+ 75.8FIELD+ 100.0 at 3BTotal 0.02 WAR
| Season | PA | AB | H | 2B | 3B | HR | BB | SO | SB | AVG | OBP | SLG | OPS | ISO | wOBA | K% | BB% | HIT+ | WAR |
|---|
| 2026 | 138 | 122 | 29 | 6 | 0 | 2 | 13 | 26 | 4 | 0.240 | 0.314 | 0.344 | 0.658 | 0.104 | 0.294 | 19.2 | 9.6 | 82.5 | 0.13 |
| 2027 | 127 | 112 | 26 | 5 | 0 | 2 | 12 | 26 | 3 | 0.233 | 0.307 | 0.331 | 0.638 | 0.097 | 0.287 | 20.4 | 9.6 | 76.0 | 0.02 |
Projected rates are per plate appearance or batter faced; counting stats scale with projected playing time. Statcast measurements inform these projections as inputs and are reported as measurements, not projected.
Most similar through age 29
His ten closest age-29 comparables averaged 52 HIT+ the next season; 6 of 10 played. Averages cover only the players who got a next season, which is why the played count matters.
Batting
| Year | Team | G | PA | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS | HIT+ |
|---|
| 2027 proj | | | 127 | | 26 | 5 | 0 | 2 | | 3 | 12 | 26 | 0.233 | 0.307 | 0.331 | 0.638 | 76.0 |
| 2026* | SEA | 13 | 30 | 3 | 5 | 0 | 0 | 0 | | 0 | 2 | 10 | 0.192 | 0.241 | 0.192 | 0.434 | 28.5 |
| 2025 | SEA | 76 | 175 | 20 | 38 | 4 | 0 | 1 | 12 | 6 | 17 | 29 | 0.250 | 0.324 | 0.296 | 0.620 | 87.3 |
| 2024 | CHC | 50 | 106 | 9 | 19 | 3 | 0 | 0 | 4 | 2 | 7 | 17 | 0.194 | 0.245 | 0.224 | 0.470 | 35.2 |
| 2023 | CHC | 61 | 149 | 24 | 32 | 5 | 0 | 1 | 5 | 13 | 13 | 32 | 0.241 | 0.308 | 0.301 | 0.609 | 66.4 |
| 2022 | TB | 8 | 17 | 1 | 3 | 0 | 0 | 0 | 0 | 1 | 1 | 6 | 0.188 | 0.235 | 0.188 | 0.423 | 25.3 |
| Career | | 195 | 447 | 54 | 92 | 12 | 0 | 2 | 21 | 22 | 38 | 84 | 0.231 | 0.296 | 0.276 | 0.572 | 65.6 |
Pitching
| Year | Team | W | L | ERA | G | GS | SV | IP | BF | HR | BB | SO | PITCH+ |
|---|
| 2025 | SEA | 0 | 0 | 0.00 | 1 | 0 | 0 | 1.0 | 6 | 0 | 2 | 0 | | | |
| 2023 | CHC | 0 | 0 | 108.00 | 1 | 0 | 0 | 0.3 | 5 | 1 | 0 | 0 | | | |
| Career | | 0 | 0 | 27.00 | 2 | 0 | 0 | 1.3 | 11 | 1 | 2 | 0 | | | |
Statcast
| Year | PA | EV | LA | Barrel% | HardHit% | Whiff% | Chase% | xBA | xSLG | xwOBA | Sprint |
|---|
| 2026 | 30 | 90.1 | 11.1 | 0.0 | 22.2 | 20.9 | 27.5 | 0.145 | 0.201 | 0.184 | 27.5 |
| 2025 | 175 | 88.0 | 6.2 | 2.3 | 36.4 | 16.1 | 19.1 | 0.275 | 0.367 | 0.318 | 28.5 |
| 2024 | 106 | 87.4 | 13.9 | 2.4 | 31.7 | 20.3 | 25.9 | 0.260 | 0.367 | 0.300 | 28.0 |
| 2023 | 149 | 87.5 | 13.7 | 1.9 | 34.6 | 22.6 | 24.0 | 0.253 | 0.350 | 0.299 | 28.6 |
| 2022 | 17 | 86.3 | -2.2 | 0.0 | 10.0 | 26.9 | 12.9 | 0.171 | 0.201 | 0.193 | 27.5 |
Fielding
| Year | Team | Pos | G | Inn | PO | A | E | DP | Fld% | Runs saved |
|---|
| 2025 | SEA | 3B | 27 | 159 | 12 | 27 | 0 | 1 | 1.000 | -3.4 |
| 2025 | SEA | OF | 25 | 113 | 28 | 0 | 0 | 0 | 1.000 | |
| 2025 | SEA | 2B | 15 | 82 | 9 | 23 | 1 | 3 | 0.970 | +0.4 |
| 2025 | SEA | 1B | 1 | 9 | 6 | 0 | 0 | 0 | 1.000 | -0.0 |
| 2025 | SEA | P | 1 | 1 | 0 | 0 | 0 | 0 | | -0.0 |
| 2024 | CHC | 3B | 17 | 99 | 6 | 29 | 2 | 3 | 0.946 | +3.5 |
| 2024 | CHC | 2B | 10 | 57 | 12 | 17 | 0 | 3 | 1.000 | +1.1 |
| 2024 | CHC | SS | 10 | 62 | 12 | 22 | 1 | 4 | 0.971 | -0.9 |
| 2024 | CHC | OF | 3 | 13 | 1 | 0 | 0 | 0 | 1.000 | |
| 2023 | CHC | 3B | 29 | 207 | 13 | 45 | 2 | 3 | 0.967 | -3.7 |
| 2023 | CHC | 2B | 7 | 44 | 8 | 8 | 0 | 2 | 1.000 | +0.1 |
| 2023 | CHC | OF | 7 | 46 | 5 | 0 | 0 | 0 | 1.000 | |
| 2023 | CHC | SS | 4 | 9 | 2 | 4 | 1 | 2 | 0.857 | -0.2 |
| 2023 | CHC | P | 1 | 0 | 0 | 0 | 0 | 0 | | -0.0 |
| 2022 | TB | 2B | 6 | 31 | 7 | 7 | 0 | 2 | 1.000 | +2.2 |
| 2022 | TB | OF | 3 | 10 | 7 | 0 | 0 | 0 | 1.000 | |
Runs saved covers the Statcast era; for catchers it includes framing.
Minor leagues
| Year | Level | Team | Side | PA / BF | Line | AVG / ERA | OPS |
|---|
| 2026 | AAA | Tacoma Rainiers | Bat | 145 | 2 HR, 6 SB | 0.228 | 0.713 |
| 2025 | AAA | Tacoma Rainiers | Bat | 142 | 1 HR, 9 SB | 0.296 | 0.832 |
| 2024 | AAA | Iowa Cubs | Bat | 244 | 4 HR, 15 SB | 0.218 | 0.634 |
| 2023 | AAA | Iowa Cubs | Bat | 165 | 2 HR, 9 SB | 0.295 | 0.921 |
| 2022 | AAA | Durham Bulls | Bat | 573 | 16 HR, 23 SB | 0.300 | 0.846 |
| 2021 | AAA | Durham Bulls | Bat | 185 | 0 HR, 2 SB | 0.292 | 0.775 |
| 2021 | AA | Montgomery Biscuits | Bat | 249 | 5 HR, 6 SB | 0.299 | 0.821 |
| 2019 | AA | Montgomery Biscuits | Bat | 430 | 4 HR, 15 SB | 0.299 | 0.755 |
| 2018 | AA | Montgomery Biscuits | Bat | 48 | 0 HR, 1 SB | 0.256 | 0.589 |
| 2018 | A+ | Charlotte Stone Crabs | Bat | 345 | 1 HR, 8 SB | 0.289 | 0.761 |
| 2017 | A | Bowling Green Hot Rods | Bat | 439 | 3 HR, 18 SB | 0.264 | 0.694 |
Splits
| Year | vs LHP | vs RHP | Home | Away |
|---|
| 2026 | 0.900 | 0.179 | 0.312 | 0.162 |
| 2025 | 0.347 | 0.281 | 0.252 | 0.328 |
| 2024 | 0.169 | 0.244 | 0.171 | 0.285 |
| 2023 | 0.262 | 0.286 | 0.314 | 0.251 |
| 2022 | | 0.200 | 0.300 | 0.087 |
wOBA by split, from pitch level data, 2015 on. For pitchers the split is the batter side faced.
Postseason batting
| Year | G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS |
|---|
| 2025 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.000 | 0.000 | 0.000 | 0.000 |
| Career | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.000 | 0.000 | 0.000 | 0.000 |