Mason Thompson

Mason Thompson

27-Year-Old PitcherRP
Washington Nationals
60-Day IL
Injury Elbow
Est. Return 5/26/2025
2025 Fantasy Outlook
There was no outlook written for Mason Thompson in 2025. Check out the latest news below for more on his current fantasy value.
$Signed a one-year, $770,000 contract with the Nationals in November of 2024.
Goes on 60-day injured list
PWashington Nationals
Elbow
February 19, 2025
The Nationals placed Thompson (elbow) on the 60-day injured list Wednesday.
ANALYSIS
Manager Dave Martinez indicated previously that Thompson had a chance to be ready in time for Opening Day following Tommy John surgery last March. However, the club has elected to proceed cautiously with the reliever, who is now ineligible to return until late May. Thompson's removal from the 40-man roster clears a spot for the newly-signed Lucas Sims.
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Pitching Stats
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2024
2023
2022
2021
2024 MLB Game Log
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2023 MLB Game Log
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2022 MLB Game Log
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2021 MLB Game Log
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Left/Right Pitching Splits
Since 2022
 
 
-11%
BAA vs RHP
2024
No Stats
2023
 
 
-9%
BAA vs RHP
2022
 
 
-30%
BAA vs RHP
BAA Batters K BB H 2B 3B HR
Since 2022vs Left .289 147 26 22 35 4 3 2
Since 2022vs Right .256 194 33 9 46 8 0 4
2024vs Left 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0
2023vs Left .312 96 18 15 24 2 2 2
2023vs Right .284 144 26 7 38 8 0 2
2022vs Left .250 51 8 7 11 2 1 0
2022vs Right .174 50 7 2 8 0 0 2
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Home/Away Pitching Splits
Since 2022
 
 
-19%
ERA at Home
2024
No Stats
2023
 
 
-53%
ERA at Home
2022
 
 
-89%
ERA on Road
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2022Home 4.15 1.38 34.2 1 1 0 4.9 4.7 1.3
Since 2022Away 5.11 1.45 44.0 4 4 2 8.2 2.7 0.2
2024Home 0 0 0 0 0 0 0 0 0
2024Away 0 0 0 0 0 0 0 0 0
2023Home 3.38 1.25 24.0 1 0 0 5.3 4.1 1.1
2023Away 7.20 1.80 30.0 3 4 1 9.0 3.3 0.3
2022Home 5.91 1.69 10.2 0 1 0 4.2 5.9 1.7
2022Away 0.64 0.71 14.0 1 0 1 6.4 1.3 0.0
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Prospect Rankings History
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Defensive Stats
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Stats Vs Today's Lineup
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2017 Fantasy Outlook
Tommy John surgery in his junior year of high school dropped Thompson to the third round of the 2016 first-year player draft, when the Padres took a gamble on the 19-year-old and swayed him from a Texas commitment with $1.75 million. Thompson has some work to do to fill out his 6-foot-7, 186-pound frame, but he has the stuff to succeed if he can do so. He posts good velocity and has some decent backup pitches, which he showed off in 12 innings for the Padres' rookie league team in the Arizona League. Thompson struck out 12 batters in his five starts, allowing just eight hits en route to a 2.25 ERA and 1.08 WHIP. He'll begin next season in a low minor league level, but the Padres will have high hopes for his success if he can stay healthy and begin to add more strength.
More Fantasy News
Chance to be ready for Opening Day
PWashington Nationals
Elbow
February 14, 2025
Nationals manager Dave Martinez said Friday that Thompson (elbow) has a chance to be ready in time for Opening Day, Spencer Nusbaum of The Washington Post reports.
ANALYSIS
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Agrees to deal with Nats
PWashington Nationals
Elbow
November 21, 2024
Thompson (elbow) agreed to a one-year contract with the Nationals on Thursday to avoid arbitration, Mark Zuckerman of MASNSports.com reports.
ANALYSIS
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Moves to 60-day IL
PWashington Nationals
Elbow
March 24, 2024
The Nationals placed Thompson (elbow) on the 60-day injured list Sunday.
ANALYSIS
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Undergoing Tommy John surgery
PWashington Nationals
Elbow
February 28, 2024
Thompson will undergo Tommy John surgery on his right elbow Friday, Mark Zuckerman of MASNSports.com reports.
ANALYSIS
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Getting checked out this week
PWashington Nationals
Elbow
February 26, 2024
Thompson will have his elbow re-evaluated early this week, Mark Zuckerman of MASNSports.com reports.
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Latest Fantasy Rumors
Out of high-leverage mix?
PWashington Nationals
May 23, 2023
Thompson delivered a scoreless inning during Tuesday's 7-4 loss to San Diego, but Mark Zuckerman of MASNSports.com speculated the right-hander is no longer a trusted high-leverage option for manager Dave Martinez.
ANALYSIS
Thompson's entered Tuesday's contest having been scored upon in each of his previous five outings, so it's not a major surprise he's fallen out of favor a bit. The 25-year-old had a 1.80 ERA, 0.70 WHIP and 19:1 K:BB across his first 20 innings of the season, and a return to that form could see him once again become a high-leverage option, though he's unlikely to be in the mix for saves without multiple injuries within the Nationals bullpen.
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