| W | L | ERA | G | GS | SV | IP | SO | WHIP | |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 3 | 2 | 3.48 | 6 | 2 | 0 | 20.2 | 21 | 1.26 |
| Career Minors | 5 | 3 | 2.72 | 9 | 4 | 0 | 36.1 | 39 | 1.16 |
| G | W-L | ERA | IP | SO | WHIP | |
|---|---|---|---|---|---|---|
| 2025 | 6 | 3-2 | 3.48 | 20.2 | 21 | 1.26 |
| Career Minors | 9 | 5-3 | 2.72 | 36.1 | 39 | 1.16 |
| Season | Tm | LG | L | W | L | ERA | G | GS | SV | IP | H | R | ER | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 2 Teams | Minors | 5 | 3 | 2.72 | 9 | 4 | 0 | 36.1 | 30 | 11 | 11 | 0 | 12 | 39 | 1.16 | |
| 2025 | FCL Blue Jays | FCL | ROK | 2 | 1 | 1.72 | 3 | 2 | 0 | 15.2 | 12 | 3 | 3 | 0 | 4 | 18 | 1.02 |
| 2025 | Dunedin Blue Jays | FSL | A | 3 | 2 | 3.48 | 6 | 2 | 0 | 20.2 | 18 | 8 | 8 | 0 | 8 | 21 | 1.26 |
| FCL Blue Jays | FCL | ROK | 2 | 1 | 1.72 | 3 | 2 | 0 | 15.2 | 12 | 3 | 3 | 0 | 4 | 18 | 1.02 | |
| Dunedin Blue Jays | FSL | A | 3 | 2 | 3.48 | 6 | 2 | 0 | 20.2 | 18 | 8 | 8 | 0 | 8 | 21 | 1.26 | |
| Career Minors | 2 Teams | 5 | 3 | 2.72 | 9 | 4 | 0 | 36.1 | 30 | 11 | 11 | 0 | 12 | 39 | 1.16 |
| Team | Date | Transaction |
|---|---|---|
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07/31/2025 | LHP Mason Olson assigned to Dunedin Blue Jays from FCL Blue Jays. |
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07/01/2025 | LHP Mason Olson assigned to FCL Blue Jays. |
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06/30/2025 | Toronto Blue Jays signed free agent LHP Mason Olson to a minor league contract. |
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01/30/2024 | LHP Mason Olson assigned to Brigham Young Cougars. |
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03/24/2023 | LHP Mason Olson assigned to Brigham Young Cougars. |
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04/28/2022 | LHP Mason Olson assigned to State College Spikes. |