Miles Mastrobuoni

Miles Mastrobuoni

#21 3B · B/T: L/R · 5' 9", 185 lb · Age 30 · San Ramon, CA, USA · MLB debut 2022 · Draft: 2016 Rd 14 #420 (TB) — Nevada · Seattle Mariners

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Career Graph

Batting

Season Team G PA AB R H 2B 3B HR RBI SB BB SO BB% K% AVG OBP SLG OPS wOBA wRC+ WAR
2022 TB 8 17 16 1 3 0 0 0 0 1 1 6 5.9% 35.3% .188 .235 .188 .423 .196 — —
2023 CHC 61 149 133 24 32 5 0 1 5 13 13 32 8.7% 21.5% .241 .308 .301 .609 .275 — —
2024 CHC 50 106 98 9 19 3 0 0 4 2 7 17 6.6% 16.0% .194 .245 .224 .469 .214 — —
2025 SEA 76 175 152 20 38 4 0 1 12 6 17 29 9.7% 16.6% .250 .324 .296 .620 .282 — —
2026 SEA 13 30 26 3 5 0 0 0 1 0 2 10 6.7% 33.3% .192 .241 .192 .433 .201 29 -0.3
2026 pace 20 45 39 5 8 0 0 0 2 0 3 15
Career 208 477 425 57 97 12 0 2 22 22 40 94 8.4% 19.7% .228 .293 .271 .564 — — —
Season Team G PA AB R H 2B 3B HR RBI SB BB SO BB% K% AVG OBP SLG OPS wOBA wRC+ WAR
Triple-A (AAA)
2019 DUR 4 12 11 0 1 0 0 0 0 0 1 4 8.3% 33.3% .091 .167 .091 .258 — — —
2021 DUR 51 185 161 25 47 10 3 0 14 2 24 48 13.0% 25.9% .292 .384 .391 .775 — — —
2022 DUR 129 573 507 92 152 32 3 16 64 23 63 95 11.0% 16.6% .300 .377 .469 .846 — — —
2023 IOW 39 165 129 35 38 11 3 2 14 9 36 39 21.8% 23.6% .295 .448 .473 .921 — — —
2024 IOW 54 244 216 34 47 12 0 4 22 15 27 44 11.1% 18.0% .218 .305 .329 .634 — — —
2025 TAC 31 142 115 22 34 11 0 1 18 9 25 18 17.6% 12.7% .296 .415 .417 .832 — — —
2026 TAC 22 83 69 12 14 4 1 1 3 6 13 15 15.7% 18.1% .203 .325 .333 .658 — — —
AAA Total 330 1404 1208 220 333 80 10 24 135 64 189 263 13.5% 18.7% .276 .373 .418 .791 — — —
Double-A (AA)
2018 MTG 12 48 43 4 11 0 0 0 8 1 5 7 10.4% 14.6% .256 .333 .256 .589 — — —
2019 MTG 107 430 381 57 114 10 6 4 34 15 42 82 9.8% 19.1% .299 .367 .388 .755 — — —
2021 MTG 55 249 221 34 66 14 2 5 31 6 27 43 10.8% 17.3% .299 .373 .448 .821 — — —
AA Total 174 727 645 95 191 24 8 9 73 22 74 132 10.2% 18.2% .296 .367 .400 .767 — — —
High-A (A+)
2018 CHA 92 345 287 49 83 14 3 1 31 8 50 59 14.5% 17.1% .289 .392 .369 .761 — — —
A+ Total 92 345 287 49 83 14 3 1 31 8 50 59 14.5% 17.1% .289 .392 .369 .761 — — —
Single-A (A)
2017 BG 104 439 379 61 100 17 3 3 39 18 51 66 11.6% 15.0% .264 .346 .348 .694 — — —
A Total 104 439 379 61 100 17 3 3 39 18 51 66 11.6% 15.0% .264 .346 .348 .694 — — —
Rookie (Rk)
2026 A-MRN 1 3 2 1 0 0 0 0 0 0 1 1 33.3% 33.3% .000 .333 .000 .333 — — —
Rk Total 1 3 2 1 0 0 0 0 0 0 1 1 33.3% 33.3% .000 .333 .000 .333 — — —
Minors Total 701 2918 2521 426 707 135 24 37 278 112 365 521 12.5% 17.9% .280 .370 .397 .767 — — —

Pitching

Season Team W L SV G GS QS IP IP/G SO K/9 BB/9 ERA FIP WAR
2023 CHC 0 0 0 1 0 — 0.1 0.3 0 0.0 0.0 108.00 — —
2025 SEA 0 0 0 1 0 — 1.0 1.0 0 0.0 18.0 0.00 — —
Career 0 0 0 2 0 — 1.1 0.7 0 0.0 13.5 27.00 — —
Season Team W L SV G GS QS IP IP/G SO K/9 BB/9 ERA FIP WAR
High-A (A+)
2018 CHA 0 0 0 2 0 — 2.1 1.2 0 0.0 0.0 0.00 — —
A+ Total 0 0 0 2 0 — 2.1 1.2 0 0.0 0.0 0.00 — —
Single-A (A)
2017 BG 0 0 0 1 0 — 2.0 2.0 1 4.5 4.5 0.00 — —
A Total 0 0 0 1 0 — 2.0 2.0 1 4.5 4.5 0.00 — —
Minors Total 0 0 0 3 0 — 4.1 1.4 1 2.1 2.1 0.00 — —

Fielding

Season Team Pos G Inn PO A E FPCT
2026 SEA 1B 2 18.0 8 3 0 1.000
2026 SEA 2B 1 8.0 2 0 0 1.000
2026 SEA 3B 4 30.0 3 5 0 1.000
2026 SEA LF 2 12.0 4 0 0 1.000
2026 SEA RF
4
9.1
1
0
0
1.000
Career LF 2 12.0 4 0 0 1.000
Season Team Pos G Inn PO A E FPCT
Triple-A (AAA)
2019 DUR 2B 1 5.0 0 2 0 1.000
2019 DUR 3B 3 13.0 0 3 0 1.000
2019 DUR RF 1 8.0 1 0 0 1.000
2021 DUR LF 8 59.0 14 1 0 1.000
2021 DUR CF 1 8.0 2 0 0 1.000
2021 DUR RF 11 94.0 20 0 0 1.000
2021 DUR 2B 11 87.0 19 17 1 .973
2021 DUR 3B 15 117.0 15 26 2 .953
2021 DUR SS 3 25.1 4 9 1 .929
2021 DUR DH 2 0.0 0 0 0 .000
2022 DUR 3B 2 17.0 4 2 0 1.000
2022 DUR LF 19 147.0 31 1 0 1.000
2022 DUR CF 14 123.0 44 1 0 1.000
2022 DUR RF 24 201.0 50 1 1 .981
2022 DUR 2B 57 472.0 81 116 4 .980
2022 DUR SS 13 96.2 17 27 1 .978
2022 DUR DH 6 0.0 0 0 0 .000
2023 IOW SS 1 9.0 1 1 0 1.000
2023 IOW LF 3 25.0 5 0 0 1.000
2023 IOW RF 3 20.0 4 1 0 1.000
2023 IOW 3B 6 48.0 7 5 1 .923
2023 IOW CF 1 9.0 0 0 0 .000
2023 IOW DH 2 0.0 0 0 0 .000
2023 IOW 2B 22 189.0 38 48 1 .989
2024 IOW 3B 7 60.0 6 11 0 1.000
2024 IOW CF 1 8.0 4 0 0 1.000
2024 IOW DH 4 0.0 0 0 0 .000
2024 IOW 2B 18 154.0 29 47 3 .962
2024 IOW SS 24 203.0 37 48 1 .988
2025 TAC 2B 2 13.0 2 4 0 1.000
2025 TAC 3B 2 18.0 2 4 0 1.000
2025 TAC LF 4 37.0 10 0 0 1.000
2025 TAC SS 9 80.0 13 29 1 .977
2025 TAC 1B 13 110.0 94 24 1 .992
2025 TAC DH 2 0.0 0 0 0 .000
2026 TAC 2B 7 52.0 7 18 0 1.000
2026 TAC LF 3 21.0 3 0 0 1.000
2026 TAC 3B 9 71.1 5 21 1 .963
2026 TAC DH 3 0.0 0 0 0 .000
AAA Total — 337 2600.1 569 467 19 .982
Double-A (AA)
2018 MTG 2B 5 43.0 5 7 0 1.000
2018 MTG 3B 1 10.0 1 1 0 1.000
2018 MTG LF 6 54.2 12 1 1 .929
2019 MTG CF 15 127.0 34 2 0 1.000
2019 MTG RF 30 240.0 56 2 0 1.000
2019 MTG 2B 26 219.0 47 59 3 .972
2019 MTG 3B 4 29.0 3 4 2 .778
2019 MTG DH 3 0.0 0 0 0 .000
2019 MTG LF 34 279.2 57 3 1 .984
2021 MTG 2B 5 35.0 11 12 0 1.000
2021 MTG 3B 4 26.2 7 4 0 1.000
2021 MTG LF 2 16.0 3 1 0 1.000
2021 MTG CF 8 73.0 17 0 0 1.000
2021 MTG SS 23 197.1 31 53 4 .955
2021 MTG RF 8 70.1 17 1 1 .947
2021 MTG DH 5 0.0 0 0 0 .000
AA Total — 179 1420.2 301 150 12 .974
High-A (A+)
2018 CHA 3B 8 67.0 6 8 0 1.000
2018 CHA LF 41 335.1 99 2 0 1.000
2018 CHA CF 4 30.0 9 0 0 1.000
2018 CHA RF 20 163.2 47 0 0 1.000
2018 CHA 2B 18 128.1 24 36 2 .968
2018 CHA P 2 2.1 0 0 0 .000
2018 CHA SS 2 11.1 1 2 1 .750
A+ Total — 95 738.0 186 48 3 .987
Single-A (A)
2017 BG 3B 1 11.0 0 2 0 1.000
2017 BG 2B 63 534.1 101 134 2 .992
2017 BG P 1 2.0 0 0 0 .000
2017 BG SS 40 344.2 64 95 6 .964
A Total — 105 892.0 165 231 8 .980
Rookie (Rk)
2026 A-MRN DH 1 0.0 0 0 0 .000
Rk Total — 1 0.0 0 0 0 —
Minors Total — 717 5651.0 1221 896 42 .981
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