Miami Marlins8 games
2-6his teams
His line: 6.0 IP, 3 K, 3.00 ERA
Last met Sep 11, 2025
BaseballMLBPitcher
Mason Thompson
Stats, career and game logMason Thompson is an MLB pitcher who made his debut with the San Diego Padres on Jun 22, 2021.
54MLB games since 202338strikeouts
Updated
About Mason Thompson
Mason Thompson is a right-handed pitcher from Round Rock, Texas, born on February 20, 1998. He made his MLB debut on Jun 22, 2021, with the San Diego Padres. In the 2025 regular season, Thompson pitched in 14 games for the Washington Nationals with an 11.81 ERA and 11 strikeouts in 10.2 innings.
Agatha Research DeskUpdated Oct 5, 2026Season by season54
Every season, every MLB appearance in our records since 2023, newest season first.
| Season | Team | Games | Starts | IP | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2025 |  WSH | 14 | 0 | 10.2 | 11 | 12 | 11.81 | 2.62 |
| 2023 | WSH | 39 | 0 | 35.0 | 27 | 21 | 6.43 | 1.86 |
| Career | 53 | 0 | 45.2 | 38 | 33 | 7.69 | 2.04 |
How he is doing now
2025 pitching11.81 ERA10.2 innings, 11 strikeouts, 2.62 WHIP
Last game1.0 IP, 2 K, 3 ERSep 19 at Mets
Injury status
No injury reports on file.
Career
4years2021 to 2025
- 2023First game in our records5-1 loss vs Cubs
- 2023Best season35.0 IP, 27 K, 6.43 ERA in 39 games
- Sep 19, 2025Latest game1.0 IP, 2 K, 3 ER at Mets
Regular season
53 games
45.2 IP, 38 K, 7.69 ERA; since 2023
First game in our records
May 1, 2023: 1.0 IP, 2 K, 0 ERCubs 5, WSH 1
Latest game
Sep 19, 2025: 1.0 IP, 2 K, 3 ERMets 12, WSH 6
Most often against
The teams he has faced most, with his teams' record and his line against each.
Chicago Cubs5 games
3-2his teams
His line: 4.2 IP, 6 K, 11.57 ERA
Last met Sep 7, 2025
New York Mets5 games
2-3his teams
His line: 2.2 IP, 3 K, 23.62 ERA
Last met Sep 19, 2025
Philadelphia Phillies5 games
4-1his teams
His line: 3.1 IP, 3 K, 8.10 ERA
Last met Aug 20, 2023
San Diego Padres5 games
2-3his teams
His line: 5.0 IP, 5 K, 0.00 ERA
Last met Jul 18, 2025
St. Louis Cardinals4 games
2-2his teams
His line: 2.1 IP, 2 K, 19.29 ERA
Last met Jul 10, 2025
Sources and updates
Stats, scores and injury reports come from Agatha's own records: MLB's own box scores, its transactions and ESPN's injury reports.
Updated Oct 5, 2026, 3:12 PM ET. Results and form refresh after every game; biography facts are checked weekly.