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Mason Thompson is a right-handed pitcher for the Round Rock Express. In MLB, Mason Thompson has appeared in 120 games (114.0 IP) with a 5.21 ERA and 7.34 strikeouts per nine. In AAA, Mason Thompson has appeared in 73 games (81.2 IP) with a 5.51 ERA and 9.04 strikeouts per nine.
The table below lists the 50 most recent of Mason Thompson's 203 tracked appearances, newest first, with innings pitched, hits, earned runs, walks, and strikeouts. Each date links to the full game page.
| Date | Lvl | Opp | IP | H | ER | BB | K |
|---|---|---|---|---|---|---|---|
| Aug 14, 2026 | AAA | Sugar Land Space Cowboys | 1.0 | 0 | 0 | 0 | 0 |
| Aug 11, 2026 | AAA | Sugar Land Space Cowboys | 1.0 | 0 | 0 | 0 | 1 |
| Aug 7, 2026 | AAA | Sacramento River Cats | 1.0 | 0 | 0 | 0 | 0 |
| Aug 5, 2026 | AAA | Sacramento River Cats | 0.1 | 0 | 0 | 0 | 0 |
| Aug 1, 2026 | AAA | Reno Aces | 1.0 | 4 | 3 | 0 | 3 |
| Jul 28, 2026 | AAA | Reno Aces | 1.0 | 0 | 0 | 0 | 2 |
| Jul 23, 2026 | AAA | Albuquerque Isotopes | 1.0 | 0 | 0 | 1 | 2 |
| Jul 19, 2026 | AAA | Las Vegas Aviators | 1.1 | 0 | 0 | 0 | 1 |
| Jul 11, 2026 | AAA | Reno Aces | 1.0 | 2 | 1 | 0 | 1 |
| Jul 9, 2026 | AAA | Reno Aces | 1.0 | 1 | 0 | 0 | 1 |
| Jun 28, 2026 | AAA | Tacoma Rainiers | 2.0 | 1 | 0 | 0 | 2 |
| Jun 24, 2026 | AAA | Tacoma Rainiers | 1.1 | 1 | 1 | 0 | 2 |
| Jun 19, 2026 | AAA | Las Vegas Aviators | 2.0 | 3 | 3 | 2 | 0 |
| Jun 16, 2026 | AAA | Las Vegas Aviators | 1.1 | 0 | 0 | 0 | 1 |
| Jun 12, 2026 | AAA | El Paso Chihuahuas | 1.0 | 2 | 2 | 1 | 2 |
| Jun 10, 2026 | AAA | El Paso Chihuahuas | 1.0 | 0 | 0 | 0 | 1 |
| Jun 5, 2026 | AAA | Oklahoma City Comets | 1.1 | 1 | 1 | 1 | 1 |
| Jun 2, 2026 | AAA | Oklahoma City Comets | 0.2 | 1 | 0 | 2 | 1 |
| May 30, 2026 | AAA | Salt Lake Bees | 0.1 | 0 | 0 | 1 | 1 |
| May 28, 2026 | AAA | Salt Lake Bees | 1.0 | 3 | 4 | 1 | 0 |
| May 23, 2026 | AAA | El Paso Chihuahuas | 1.0 | 0 | 0 | 0 | 1 |
| May 20, 2026 | AAA | El Paso Chihuahuas | 1.0 | 1 | 0 | 0 | 0 |
| May 17, 2026 | AAA | Sacramento River Cats | 0.1 | 2 | 1 | 1 | 0 |
| May 16, 2026 | AAA | Sacramento River Cats | 0.1 | 0 | 0 | 0 | 1 |
| May 13, 2026 | AAA | Sacramento River Cats | 0.2 | 2 | 3 | 1 | 1 |
| May 9, 2026 | AAA | Durham Bulls | 1.0 | 1 | 0 | 0 | 3 |
| May 8, 2026 | AAA | Durham Bulls | 1.0 | 0 | 0 | 0 | 2 |
| May 5, 2026 | AAA | Durham Bulls | 0.0 | 1 | 0 | 0 | 0 |
| May 2, 2026 | AAA | Oklahoma City Comets | 1.2 | 3 | 3 | 1 | 2 |
| Apr 29, 2026 | AAA | Oklahoma City Comets | 1.0 | 1 | 0 | 0 | 1 |
| Apr 25, 2026 | AAA | Sugar Land Space Cowboys | 2.0 | 1 | 0 | 0 | 2 |
| Apr 23, 2026 | AAA | Sugar Land Space Cowboys | 1.0 | 0 | 0 | 1 | 0 |
| Apr 17, 2026 | AAA | El Paso Chihuahuas | 1.1 | 2 | 0 | 1 | 0 |
| Apr 15, 2026 | AAA | El Paso Chihuahuas | 1.1 | 0 | 0 | 0 | 2 |
| Apr 7, 2026 | AAA | Oklahoma City Comets | 1.0 | 2 | 0 | 0 | 0 |
| Apr 3, 2026 | AAA | Gwinnett Stripers | 1.0 | 2 | 3 | 1 | 1 |
| Apr 1, 2026 | AAA | Gwinnett Stripers | 1.1 | 0 | 0 | 1 | 0 |
| Mar 29, 2026 | AAA | Sugar Land Space Cowboys | 1.0 | 0 | 0 | 0 | 2 |
| Mar 28, 2026 | AAA | Sugar Land Space Cowboys | 0.0 | 2 | 0 | 0 | 0 |
| Sep 19, 2025 | MLB | New York Mets | 1.0 | 2 | 3 | 3 | 2 |
| Sep 16, 2025 | MLB | Atlanta Braves | 0.1 | 3 | 4 | 1 | 1 |
| Sep 14, 2025 | MLB | Pittsburgh Pirates | 1.0 | 0 | 0 | 1 | 1 |
| Sep 11, 2025 | MLB | Miami Marlins | 1.0 | 1 | 0 | 0 | 1 |
| Sep 10, 2025 | MLB | Miami Marlins | 0.1 | 1 | 0 | 0 | 0 |
| Sep 7, 2025 | MLB | Chicago Cubs | 1.0 | 2 | 1 | 0 | 1 |
| Sep 3, 2025 | MLB | Miami Marlins | 1.0 | 1 | 0 | 1 | 1 |
| Aug 30, 2025 | MLB | Tampa Bay Rays | 1.0 | 0 | 0 | 0 | 1 |
| Aug 27, 2025 | AAA | Jacksonville Jumbo Shrimp | 2.0 | 1 | 0 | 0 | 1 |
| Aug 24, 2025 | AAA | Toledo Mud Hens | 1.0 | 0 | 0 | 1 | 0 |
| Aug 22, 2025 | AAA | Toledo Mud Hens | 1.0 | 0 | 0 | 0 | 1 |