| Mason Barnett | |
|---|---|
 Barnett with the Northwest Arkansas Naturals in 2023 | |
| Athletics – No. 63 | |
| Pitcher | |
| Born:November 7, 2000 Kennesaw, Georgia, U.S. | |
Bats: Right Throws: Right | |
| MLB debut | |
| August 30, 2025, for the Athletics | |
| MLB statistics (through September 1,2025) | |
| Win–loss record | 0–1 |
| Earned run average | 11.25 |
| Strikeouts | 1 |
| Teams | |
Mason McLendon Barnett (born November 7,2000) is an American professional baseball pitcher for the Athletics of Major League Baseball (MLB). He made his MLB debut in 2025.
Barnett attended Cartersville High School in Cartersville,Georgia, [1] and Auburn University,where he played college baseball for the Auburn Tigers. [2] In 2021,he played collegiate summer baseball with the Brewster Whitecaps of the Cape Cod Baseball League. [3]
The Kansas City Royals selected Barnett in the third round of the 2022 Major League Baseball draft. [4] He signed with the Royals and spent his first professional season with the Arizona Complex League Royals and Columbia Fireflies. Barnett started 2023 with the Quad Cities River Bandits before his promotion to the Northwest Arkansas Naturals. [5]
On July 30,2024,Barnett,Will Klein,and Jared Dickey were acquired by the Oakland Athletics in exchange for Lucas Erceg. [6]
Barnett began the 2025 season with the Triple-A Las Vegas Aviators,compiling a 6-2 record and 6.13 ERA with 124 strikeouts over 119 innings of work. On August 26,2025,Barnett was selected to the 40-man roster and promoted to the major leagues for the first time. [7]