Joan Adon

Joan Adon

26-Year-Old PitcherRP
Washington Nationals AAA
2025 Fantasy Outlook
There was no outlook written for Joan Adon in 2025. Check out the latest news below for more on his current fantasy value.
$Signed a one-year contract with the Nationals in March of 2024.
Tosses scoreless frame
PWashington Nationals  AAA
February 24, 2025
Adon (biceps) pitched a scoreless inning during Saturday's Grapefruit League game against the Astros.
ANALYSIS
Adon ended the 2024 season with a biceps injury but has since returned to health. Saturday's performance was a strong start to camp for the 26-year-old, who posted a 6.75 ERA and 1.50 ERA with six strikeouts a year ago over 10.2 innings (eight games).
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Pitching Stats
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2024
2023
2022
2021
2020
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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2020 MLB Game Log
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Left/Right Pitching Splits
Since 2023
 
 
-19%
BAA vs RHP
2025
No Stats
2024
 
 
-50%
BAA vs RHP
2023
 
 
-11%
BAA vs RHP
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .313 148 25 12 42 12 0 5
Since 2023vs Right .254 140 29 16 30 7 0 5
2025vs Left 0 0 0 0 0 0 0 0
2025vs Right 0 0 0 0 0 0 0 0
2024vs Left .412 21 0 2 7 1 0 0
2024vs Right .208 27 6 2 5 0 0 2
2023vs Left .299 127 25 10 35 11 0 5
2023vs Right .266 113 23 14 25 7 0 3
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Home/Away Pitching Splits
Since 2023
 
 
-57%
ERA on Road
2025
No Stats
2024
 
 
-80%
ERA on Road
2023
 
 
-50%
ERA on Road
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 8.82 1.87 33.2 0 3 0 8.0 4.0 1.9
Since 2023Away 3.77 1.29 28.2 2 1 0 7.5 4.1 0.9
2025Home 0 0 0 0 0 0 0 0 0
2025Away 0 0 0 0 0 0 0 0 0
2024Home 13.50 2.25 4.0 0 0 0 6.8 2.3 2.3
2024Away 2.70 1.05 6.2 0 0 0 4.1 4.1 1.4
2023Home 8.19 1.82 29.2 0 3 0 8.2 4.2 1.8
2023Away 4.09 1.36 22.0 2 1 0 8.6 4.1 0.8
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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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Recent RotoWire Articles Featuring Joan Adon See More
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Past Fantasy Outlooks
2024
2023
Adon has above-average velocity and has often produced groundballs at a high rate. It's a combination which has intrigued the Nationals enough to give the right-hander 25 starts (27 appearances in total) and 121.2 innings over the last three seasons. However, Adon simply has shown no semblance of being a major-league caliber starting pitcher, collecting a 6.66 ERA, 1.71 WHIP and 11.5 percent walk rate over that span. He's also produced just a 4.64 ERA and 1.52 WHIP at Triple-A Rochester over the last two seasons. It's a profile which screams reliever, and that may very well be where Adon winds up in 2024.
Adon was a surprise addition to the Nationals' 2022 Opening Day rotation, but he struggled to a 7.10 ERA and was not seen again at the major-league level after July 7. Dress in layers if you're to visit Adon's Statcast page -- there is a lot of frigid blue, showing bottom-10 percentile ranks in xERA, xBA, xSLG, Barrel%, BB% and Whiff%. Things got better with Triple-A Rochester from a run-prevention standpoint (4.68 ERA), but Adon remained far too generous with the free passes (5.1 BB/9). Mostly a fastball-curveball pitcher last season, Adon brings good velocity with the heater. The Nationals may need him to eat innings in 2023 after he cleared 100 frames between the two levels a season ago. The 24-year-old remains on the 40-man roster as of late December.
More Fantasy News
Remains in organization
PWashington Nationals  AAA
Biceps
January 15, 2025
The Nationals outrighted Adon (biceps) to Triple-A Rochester on Wednesday, Mark Zuckerman of MASNSports.com reports.
ANALYSIS
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Removed from 40-man roster
PWashington Nationals  AAA
Biceps
January 8, 2025
The Nationals designated Adon (biceps) for assignment Wednesday, Bobby Blanco of MASNSports.com reports.
ANALYSIS
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Shifts to 60-day IL
PWashington Nationals  AAA
Biceps
September 20, 2024
Adon (biceps) was transferred to the 60-day injured list Friday.
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Placed on IL with bicep issue
PWashington Nationals  AAA
Biceps
August 28, 2024
The Nationals placed Adon on the 15-day injured list Wednesday with a right biceps strain, Andrew Golden of The Washington Post reports.
ANALYSIS
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Gets call-up from Triple-A
PWashington Nationals  AAA
August 17, 2024
The Nationals recalled Adon from Triple-A Rochester on Saturday.
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