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Mason Thompson  

Mason Thompson  

Washington Nationals |Active on MLB Roster

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Proper Name
Mason Lane Thompson
High Level
MLB (2021-2023)
Positions
P (188)
Ht / Wt
6-6 / 241
Bats / Throws
Right / Right
age
26.035
place
Round Rock,Texas
High School
Round Rock (Round Rock,TX)
Signing Bonus
$ 1,750,000
draft posit
P
MLB Debut
Service Time
2.046 (2023)
MLB Teams
SDN [5] WAS [3]
TBC#
203959
mlbam id
666168
Retrosheet
Stat Capsuleerawhipw-lggssviphso
Season [2023]WAS5.501.564-4510154.06244
Season [2023]AA (WAS)0.000.000-01001.001
Career MLB [2021-2023]4.531.546-810602103.311382
Strikeouts
40
Walks
47
Hittable
39
SO/BB
40
vsPower
39
Hitting
0
Durability
46
Team
.464
Player Tags
Player Notes:  
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Pitching Statistics
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Grid Actions:
Tips/tools for using data gri ds:

  • Manual Filter: Single-click a row to highlight in orange. Click FILTER ROWS button to show only those rows in the grid
  • Quick-Filter: Double-Click on a cell value to filter the grid on rows that have same value in same column. Click a statistic to view all values equal or higher
  • Select Rows: Single-click rows to select multiple rows for future action or visibility.
  • Hide Rows: Click the` minus sign in the first column to hide the row in the grid.
  • Restore Rows: Once rows are filtered, click RESTORE ROWS to show all rows once again
  • Sort: Click a column in the first header row to sort data by values in that column. Click again to reverse the original sort. Some cells have custom sort keys that will sort them logically instead of alphanumerically.
  • Compare/Analyze: Click multiple rows for players of interest. In addition to filtering, you can quickly COMPARE player stats or use the MULTI-PLAYER STAT VIEWER to view multiple player cards on the same page.
  • Leaders: On stat grids. Top-10 ranked statistics are highlighted in gray. #1 rank is in light green. (PREMIUM setting)
  • Export to CSV: Click CSV to convert the full grid into a comma-delimeted display. From there, you can copy/paste to another application.
year team name league level org age   # link role   w   l   g gs cg sh gr gf sv ip   h   r er hr bb so wp bk hb era whip h9 hr9 bb9 so9 ra9 so/bb
2016 Arizona Padres Ariz Rk sdn 18 27 log Starter 0 0 5 5 0 0 0 0 0 12.0 8 3 3 0 5 12 2 0 2 2.25 1.08 6.00 0.00 3.75 9.00 2.25 2.40
2017 Fort Wayne TinCaps Midw A sdn 19 0 log Starter 2 4 7 7 0 0 0 0 0 27.0 23 17 14 2 12 28 2 0 1 4.67 1.30 7.67 0.67 4.00 9.33 5.67 2.33
2018 Fort Wayne TinCaps Midw A sdn 20 -- log Starter 6 8 22 20 0 0 2 0 0 93.0 95 61 51 8 37 97 9 1 8 4.94 1.42 9.19 0.77 3.58 9.39 5.90 2.62
2019 Arizona Padres 2 Ariz Rk sdn 21 -- log Starter 0 0 2 2 0 0 0 0 0 4.0 6 4 3 1 3 3 0 0 0 6.75 2.25 13.50 2.25 6.75 6.75 9.00 1.00
2019 Arizona Padres Ariz Rk sdn 21 -- log Reliever 0 0 1 0 0 0 1 0 0 1.0 0 0 0 0 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 --
2019 Lake Elsinore Storm Calif A+ sdn 21 -- log Starter 0 5 7 6 0 0 1 0 0 22.1 22 21 19 3 19 22 2 0 3 7.66 1.84 8.87 1.21 7.66 8.87 8.46 1.16
2021 El Paso Chihuahuas PCL2 AAA sdn 23 22 log Closer 3 2 23 0 0 0 23 12 7 26.2 25 18 17 4 8 24 1 0 0 5.74 1.24 8.44 1.35 2.70 8.10 6.08 3.00
2021 San Diego Padres NL MLB sdn 23 71 log Reliever 0 0 4 0 0 0 4 1 0 3.0 4 1 1 0 1 2 2 0 0 3.00 1.67 12.00 0.00 3.00 6.00 3.00 2.00
2021 Washington Nationals NL MLB was 23 71 log Reliever 1 3 27 0 0 0 27 4 0 21.2 28 14 10 4 14 21 1 0 1 4.15 1.94 11.63 1.66 5.82 8.72 5.82 1.50
2022 FCL Nationals FCL Rk was 24 94 log Starter 0 0 3 3 0 0 0 0 0 2.2 2 2 1 0 0 7 0 0 2 3.37 0.75 6.75 0.00 0.00 23.62 6.75 --
2022 Rochester Red Wings IL2 AAA was 24 37,28 log Rel/St 0 4 11 1 0 0 10 4 0 15.1 15 9 6 0 5 19 2 0 1 3.52 1.30 8.80 0.00 2.93 11.15 5.28 3.80
2022 Washington Nationals NL MLB was 24 71 log Reliever 1 1 24 0 0 0 24 8 1 24.2 19 8 8 2 9 15 1 0 1 2.92 1.14 6.93 0.73 3.28 5.47 2.92 1.67
2023 Harrisburg Senators East2 AA was 25 35 log Reliever 0 0 1 0 0 0 1 0 0 1.0 0 0 0 0 0 1 0 0 0 0.00 0.00 0.00 0.00 0.00 9.00 0.00 --
2023 Washington Nationals NL MLB was 25 71 log Reliever 4 4 51 0 0 0 51 5 1 54.0 62 35 33 4 22 44 4 0 4 5.50 1.56 10.33 0.67 3.67 7.33 5.83 2.00
2016 Rk Total -- SDN -- -- -- Starter 0 0 5 5 0 0 0 0 0 12.0 8 3 3 0 5 12 2 0 2 2.25 1.08 6.00 0.00 3.75 9.00 2.25 2.40
2017 A Total -- SDN -- -- -- Starter 2 4 7 7 0 0 0 0 0 27.0 23 17 14 2 12 28 2 0 1 4.67 1.30 7.67 0.67 4.00 9.33 5.67 2.33
2018 A Total -- SDN -- -- -- Starter 6 8 22 20 0 0 2 0 0 93.0 95 61 51 8 37 97 9 1 8 4.94 1.42 9.19 0.77 3.58 9.39 5.90 2.62
2019 Rk / A+ Total -- SDN -- -- -- St/Rel 0 5 10 8 0 0 2 0 0 27.3 28 25 22 4 22 25 2 0 3 7.24 1.83 9.22 1.32 7.24 8.23 8.23 1.14
2021 AAA Total -- SDN -- -- -- Closer 3 2 23 0 0 0 23 12 7 26.7 25 18 17 4 8 24 1 0 0 5.74 1.24 8.44 1.35 2.70 8.10 6.08 3.00
2021 MLB Total -- SDN,WAS -- -- -- Reliever 1 3 31 0 0 0 31 5 0 24.7 32 15 11 4 15 23 3 0 1 4.01 1.91 11.68 1.46 5.47 8.39 5.47 1.53
2022 AAA / Rk Total -- WAS -- -- -- Rel/St 0 4 14 4 0 0 10 4 0 18.0 17 11 7 0 5 26 2 0 3 3.50 1.22 8.50 0.00 2.50 13.00 5.50 5.20
2022 MLB Total -- WAS -- -- -- Reliever 1 1 24 0 0 0 24 8 1 24.7 19 8 8 2 9 15 1 0 1 2.92 1.14 6.93 0.73 3.28 5.47 2.92 1.67
2023 AA Total -- WAS -- -- -- Reliever 0 0 1 0 0 0 1 0 0 1.0 0 0 0 0 0 1 0 0 0 0.00 0.00 0.00 0.00 0.00 9.00 0.00 --
2023 MLB Total -- WAS -- -- -- Reliever 4 4 51 0 0 0 51 5 1 54.0 62 35 33 4 22 44 4 0 4 5.50 1.56 10.33 0.67 3.67 7.33 5.83 2.00
Total MLB (3 yrs) -- MLB -- -- -- -- -- 6 8 106 0 0 0 106 18 2 103.1 113 58 52 10 46 82 8 0 6 4.53 1.54 9.84 0.87 4.01 7.14 5.05 1.78
Total Minors (7 yrs) -- Minors -- -- -- -- -- 11 23 82 44 0 0 38 16 7 205.0 196 135 114 18 89 213 18 1 17 5.00 1.39 8.60 0.79 3.91 9.35 5.93 2.39
Total NL (3 yrs) -- NL -- -- -- -- -- 6 8 106 0 0 0 106 18 2 103.1 113 58 52 10 46 82 8 0 6 4.53 1.54 9.84 0.87 4.01 7.14 5.05 1.78
Total AAA (2 yrs) -- AAA -- -- -- -- -- 3 6 34 1 0 0 33 16 7 42.0 40 27 23 4 13 43 3 0 1 4.93 1.26 8.57 0.86 2.79 9.21 5.79 3.31
Total AA (1 yrs) -- AA -- -- -- -- -- 0 0 1 0 0 0 1 0 0 1.0 0 0 0 0 0 1 0 0 0 0.00 0.00 0.00 0.00 0.00 9.00 0.00 --
Total A+ (1 yrs) -- A+ -- -- -- -- -- 0 5 7 6 0 0 1 0 0 22.1 22 21 19 3 19 22 2 0 3 7.66 1.84 8.87 1.21 7.66 8.87 8.46 1.16
Total A (2 yrs) -- A -- -- -- -- -- 8 12 29 27 0 0 2 0 0 120.0 118 78 65 10 49 125 11 1 9 4.88 1.39 8.85 0.75 3.68 9.38 5.85 2.55
Total Rk (3 yrs) -- Rk -- -- -- -- -- 0 0 11 10 0 0 1 0 0 19.2 16 9 7 1 8 22 2 0 4 3.20 1.22 7.32 0.46 3.66 10.07 4.12 2.75
Other Pitching
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Grid Actions:
Tips/tools for using data gri ds:

  • Manual Filter: Single-click a row to highlight in orange. Click FILTER ROWS button to show only those rows in the grid
  • Quick-Filter: Double-Click on a cell value to filter the grid on rows that have same value in same column. Click a statistic to view all values equal or higher
  • Select Rows: Single-click rows to select multiple rows for future action or visibility.
  • Hide Rows: Click the` minus sign in the first column to hide the row in the grid.
  • Restore Rows: Once rows are filtered, click RESTORE ROWS to show all rows once again
  • Sort: Click a column in the first header row to sort data by values in that column. Click again to reverse the original sort. Some cells have custom sort keys that will sort them logically instead of alphanumerically.
  • Compare/Analyze: Click multiple rows for players of interest. In addition to filtering, you can quickly COMPARE player stats or use the MULTI-PLAYER STAT VIEWER to view multiple player cards on the same page.
  • Leaders: On stat grids. Top-10 ranked statistics are highlighted in gray. #1 rank is in light green. (PREMIUM setting)
  • Export to CSV: Click CSV to convert the full grid into a comma-delimeted display. From there, you can copy/paste to another application.
year team name league level age role   w   l   g gs cg sh gr gf sv ip   h   r er hr bb so wp bk hb era whip h9 hr9 bb9 so9 ra9 so/bb
2013 Team USA 15u Intl USA 15 St/Rel 2 0 3 2 0 0 1 0 0 14.0 6 2 2 0 3 22 1 0 3 1.29 0.64 3.86 0.00 1.93 14.14 1.29 7.33
2021 San Diego Padres MLB Spring Training Spring 23 Reliever 0 1 7 0 0 0 7 2 0 5.2 7 8 8 2 6 5 1 0 1 12.71 2.29 11.12 3.18 9.53 7.94 12.71 0.83
2022 Washington Nationals MLB Spring Training Spring 24 Reliever 0 0 6 0 0 0 6 1 0 5.2 6 3 3 0 3 7 4 0 1 4.76 1.59 9.53 0.00 4.76 11.12 4.76 2.33
2023 Washington Nationals MLB Spring Training Spring 25 Closer 0 0 7 0 0 0 7 5 2 9.0 9 3 3 0 2 5 2 0 2 3.00 1.22 9.00 0.00 2.00 5.00 3.00 2.50
-- Totals -- USA 15 -- 2 0 3 2 0 0 1 0 0 14.0 6 2 2 0 3 22 1 0 3 1.29 0.64 3.86 0.00 1.93 14.14 1.29 7.33
-- Totals -- Spring 23 -- 0 1 20 0 0 0 20 8 2 20.1 22 14 14 2 11 17 7 0 4 6.20 1.62 9.74 0.89 4.87 7.52 6.20 1.55
Other Batting
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Grid Actions:
Tips/tools for using data gri ds:

  • Manual Filter: Single-click a row to highlight in orange. Click FILTER ROWS button to show only those rows in the grid
  • Quick-Filter: Double-Click on a cell value to filter the grid on rows that have same value in same column. Click a statistic to view all values equal or higher
  • Select Rows: Single-click rows to select multiple rows for future action or visibility.
  • Hide Rows: Click the` minus sign in the first column to hide the row in the grid.
  • Restore Rows: Once rows are filtered, click RESTORE ROWS to show all rows once again
  • Sort: Click a column in the first header row to sort data by values in that column. Click again to reverse the original sort. Some cells have custom sort keys that will sort them logically instead of alphanumerically.
  • Compare/Analyze: Click multiple rows for players of interest. In addition to filtering, you can quickly COMPARE player stats or use the MULTI-PLAYER STAT VIEWER to view multiple player cards on the same page.
  • Leaders: On stat grids. Top-10 ranked statistics are highlighted in gray. #1 rank is in light green. (PREMIUM setting)
  • Export to CSV: Click CSV to convert the full grid into a comma-delimeted display. From there, you can copy/paste to another application.
year team name league level age   g ab   r   h 2b 3b hr rbi sb cs bb so hbp sh sf iw gdp tb pa xbh 1b avg obp slg ops secA iso babip bb% so% so/bb ab/hr
2013 Team USA 15u Intl USA 15 2 4 1 2 0 2 0 3 0 0 0 1 1 0 0 0 0 6 5 2 0 .500 .600 1.500 2.100 1.000 1.000 .667 0.00 20.00 -- --
2021 San Diego Padres MLB Spring Training Spring 23 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -- -- -- -- -- -- -- -- -- -- --
-- Totals -- USA 15 2 4 1 2 0 2 0 3 0 0 0 1 1 0 0 0 0 6 5 2 0 .500 .600 1.500 2.100 1.000 1.000 .667 0.00 20.00 -- --
-- Totals -- Spring 23 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -- -- -- -- -- -- -- -- -- -- --
Fielding Statistics
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Grid Actions:
Tips/tools for using data gri ds:

  • Manual Filter: Single-click a row to highlight in orange. Click FILTER ROWS button to show only those rows in the grid
  • Quick-Filter: Double-Click on a cell value to filter the grid on rows that have same value in same column. Click a statistic to view all values equal or higher
  • Select Rows: Single-click rows to select multiple rows for future action or visibility.
  • Hide Rows: Click the` minus sign in the first column to hide the row in the grid.
  • Restore Rows: Once rows are filtered, click RESTORE ROWS to show all rows once again
  • Sort: Click a column in the first header row to sort data by values in that column. Click again to reverse the original sort. Some cells have custom sort keys that will sort them logically instead of alphanumerically.
  • Compare/Analyze: Click multiple rows for players of interest. In addition to filtering, you can quickly COMPARE player stats or use the MULTI-PLAYER STAT VIEWER to view multiple player cards on the same page.
  • Leaders: On stat grids. Top-10 ranked statistics are highlighted in gray. #1 rank is in light green. (PREMIUM setting)
  • Export to CSV: Click CSV to convert the full grid into a comma-delimeted display. From there, you can copy/paste to another application.
year team name league level mlb age pos   g gs inn po   a   e dp tc tsc sb cs sb% fpct rfg rfi rf9i tm shr pl shr tm rk
2016 Arizona Padres Ariz Rk sdn 18 p 5 0 0.0 2 0 0 0 2 2 0 0 -- 1.000 0.4 -- -- 9.1 100.0 17
2017 Fort Wayne TinCaps Midw A sdn 19 p 7 0 0.0 2 3 1 0 6 5 0 0 -- .833 0.7 -- -- 5.0 100.0 21
2018 Fort Wayne TinCaps Midw A sdn 20 p 22 0 0.0 6 8 2 0 16 14 0 0 -- .875 0.6 -- -- 15.9 100.0 7
2019 Lake Elsinore Storm Calif A+ sdn 21 p 7 0 0.0 1 2 1 0 4 3 0 0 -- .750 0.4 -- -- 5.1 100.0 22
2019 Arizona Padres 2 Ariz Rk sdn 21 p 2 0 0.0 1 0 0 0 1 1 0 0 -- 1.000 0.5 -- -- 3.6 100.0 21
2019 Arizona Padres Ariz Rk sdn 21 p 1 0 0.0 0 0 0 0 0 0 0 0 -- .000 0.0 -- -- 1.8 100.0 26
2021 San Diego Padres NL MLB sdn 23 p 4 0 3.0 0 0 1 0 1 0 1 0 100.00 .000 0.0 0.00 0.00 2.5 100.0 27
2021 Washington Nationals NL MLB was 23 p 27 0 21.2 0 1 1 0 2 1 2 0 100.00 .500 0.0 0.05 0.42 16.7 100.0 13
2021 El Paso Chihuahuas PCL2 AAA sdn 23 p 23 0 0.0 1 4 0 0 5 5 0 0 -- 1.000 0.2 -- -- 17.7 100.0 8
2022 Washington Nationals NL MLB was 24 p 24 0 24.2 5 1 0 0 6 6 1 0 100.00 1.000 0.3 0.25 2.23 14.8 100.0 14
2022 Rochester Red Wings IL2 AAA was 24 p 11 0 15.1 0 1 0 0 1 1 0 0 -- 1.000 0.1 0.07 0.60 7.4 100.0 22
2022 FCL Nationals FCL Rk was 24 p 3 0 2.2 0 0 1 0 1 0 0 0 -- .000 0.0 0.00 0.00 5.5 100.0 20
2023 Washington Nationals NL MLB was 25 p 51 0 54.0 3 9 0 2 12 12 6 2 75.00 1.000 0.2 0.22 2.00 31.5 100.0 3
2023 Harrisburg Senators East2 AA was 25 p 1 0 1.0 0 0 0 0 0 0 0 0 -- .000 0.0 0.00 0.00 0.0 100.0 33
Total MLB (3 yrs) -- MLB -- -- p 106 0 102 8 11 2 2 21 19 10 2 83.33 .905 0.2 0.19 1.67 -- -- --
Total AAA (2 yrs) -- AAA -- -- p 34 0 15 1 5 0 0 6 6 0 0 -- 1.000 0.2 0.40 3.58 -- -- --
Total AA (1 yrs) -- AA -- -- p 1 0 1 0 0 0 0 0 0 0 0 -- -- 0.0 0.00 0.00 -- -- --
Total A+ (1 yrs) -- A+ -- -- p 7 0 0 1 2 1 0 4 3 0 0 -- .750 0.4 -- -- -- -- --
Total A (2 yrs) -- A -- -- p 29 0 0 8 11 3 0 22 19 0 0 -- .864 0.7 -- -- -- -- --
Total Rk (3 yrs) -- Rk -- -- p 11 0 2 3 0 1 0 4 3 0 0 -- .750 0.3 1.36 12.27 -- -- --
Yearly Positional Grid
*Reload page to restore grid
Grid Actions:
Tips/tools for using data gri ds:

  • Manual Filter: Single-click a row to highlight in orange. Click FILTER ROWS button to show only those rows in the grid
  • Quick-Filter: Double-Click on a cell value to filter the grid on rows that have same value in same column. Click a statistic to view all values equal or higher
  • Select Rows: Single-click rows to select multiple rows for future action or visibility.
  • Hide Rows: Click the` minus sign in the first column to hide the row in the grid.
  • Restore Rows: Once rows are filtered, click RESTORE ROWS to show all rows once again
  • Sort: Click a column in the first header row to sort data by values in that column. Click again to reverse the original sort. Some cells have custom sort keys that will sort them logically instead of alphanumerically.
  • Compare/Analyze: Click multiple rows for players of interest. In addition to filtering, you can quickly COMPARE player stats or use the MULTI-PLAYER STAT VIEWER to view multiple player cards on the same page.
  • Leaders: On stat grids. Top-10 ranked statistics are highlighted in gray. #1 rank is in light green. (PREMIUM setting)
  • Export to CSV: Click CSV to convert the full grid into a comma-delimeted display. From there, you can copy/paste to another application.
year category pos p pos c pos 1b pos 2b pos 3b pos ss pos lf pos cf pos rf pos of pos dh
2016 Minor 5 0 0 0 0 0 0 0 0 0 0
2017 Minor 7 0 0 0 0 0 0 0 0 0 0
2018 Minor 22 0 0 0 0 0 0 0 0 0 0
2019 Minor 10 0 0 0 0 0 0 0 0 0 0
2021 Minor 23 0 0 0 0 0 0 0 0 0 0
2021 MLB 31 0 0 0 0 0 0 0 0 0 0
2022 Minor 14 0 0 0 0 0 0 0 0 0 0
2022 MLB 24 0 0 0 0 0 0 0 0 0 0
2023 Minor 1 0 0 0 0 0 0 0 0 0 0
2023 MLB 51 0 0 0 0 0 0 0 0 0 0