60-Day IL
Injury Elbow
Est. Return 9/1/2027
2026 Stats
W-L
3-3
ERA
6.58
WHIP
1.49
K
34
SV
1
Rest-of-Season Projections
2026 Fantasy Outlook
Parker got off to a flying start in 2025, posting a 1.39 ERA in 32.1 innings across his first five starts of the season. Those good feelings were short lived, as he went on to log a 5-15 record over his next 25 starts while sporting a 7.00 ERA and 1.60 WHIP over 126 innings, which prompted the Nationals to move the southpaw to the bullpen in September. Parker's role in 2026 is unclear, and given that he ranked near the bottom of qualified pitchers in xBA, xERA and strikeout rate, he would provide limited fantasy value even if he were a part of Washington's rotation by Opening Day. Read Past Outlooks
Signed a one-year contract with the Nationals in March of 2026.
Moves to 60-day IL
The Nationals transferred Parker (elbow) to the 60-day injured list Wednesday.
Analysis
Parker is likely to undergo Tommy John surgery after being diagnosed with a Grade 3 UCL sprain in his left elbow, so the Nationals will stash him away on the 60-day IL for the rest of the season. The move creates space on the 40-man roster for Kyle Nicolas, who was acquired from Baltimore on Wednesday.
Parker is likely to undergo Tommy John surgery after being diagnosed with a Grade 3 UCL sprain in his left elbow, so the Nationals will stash him away on the 60-day IL for the rest of the season. The move creates space on the 40-man roster for Kyle Nicolas, who was acquired from Baltimore on Wednesday.
Pitching Stats
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2026 MLB Game Log
2026
2025
2024
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
30
Last 10 Games
25
Last 5 Games
22
How many pitches does Mitchell Parker generally throw?
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100
101-110
111-120
121+
What part of the game does Mitchell Parker generally pitch?
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2024
-8%
BAA vs RHP
2026
-25%
BAA vs RHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2024vs Left | .286 | 80 | 32 | 108 | 11 | |||
| Since 2024vs Right | .262 | 190 | 82 | 270 | 41 | |||
| 2026vs Left | .338 | 15 | 6 | 22 | 4 | |||
| 2026vs Right | .255 | 19 | 7 | 24 | 5 | |||
| 2025vs Left | .270 | 24 | 19 | 44 | 6 | |||
| 2025vs Right | .273 | 79 | 39 | 134 | 19 | |||
| 2024vs Left | .282 | 41 | 7 | 42 | 1 | |||
| 2024vs Right | .251 | 92 | 36 | 112 | 17 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2024
-33%
ERA at Home
2026
-26%
ERA at Home
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2024Home | 4.27 | 1.29 | 198.1 | 6.9 | 2.2 | ||||
| Since 2024Away | 6.36 | 1.50 | 157.0 | 6.8 | 3.7 | ||||
| 2026Home | 5.59 | 1.24 | 19.1 | 5.1 | 1.9 | ||||
| 2026Away | 7.52 | 1.72 | 20.1 | 10.2 | 4.0 | ||||
| 2025Home | 5.56 | 1.53 | 90.2 | 6.3 | 3.0 | ||||
| 2025Away | 5.84 | 1.31 | 74.0 | 4.9 | 3.4 | ||||
| 2024Home | 2.65 | 1.05 | 88.1 | 7.8 | 1.5 | ||||
| 2024Away | 6.61 | 1.66 | 62.2 | 8.0 | 4.0 | ||||
| More Splits→ | View More Split Stats | ||||||||
Stat Review
How does Mitchell Parker compare to other relievers?
This section compares his stats with all relief pitcher seasons from the previous three seasons (minimum 30 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
2.62K/9
7.7BB/9
2.9HR/9
2.0Fastball
93.7 mphERA
6.58WHIP
1.49BABIP
.322GB/FB
1.05Left On Base
60.3%Exit Velocity
82.5 mphBarrels/BBE
5.2%Spin Rate
2224 rpmBalls Hit 95+ MPH
27.5%Swinging Strike
13.8%Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Past Fantasy Outlooks
2025
2024
Parker beat the eventual world champion Dodgers in his big-league debut in April, and while there were bumps in the road from there, his final numbers as a rookie were highly respectable. The left-hander made 29 starts and totaled 151 innings for the Nationals, pitching to a 4.29 ERA and 1.30 WHIP. HIs fastball is lacking and can get touched up, but his splitter and slider both had whiff rates over 35 percent last season, hinting at room for growth with his strikeout rate even with his below-average velocity. He had a nine-run disaster Aug. 15 at Philadelphia which should serve as a reminder of his downside in the wrong matchup. Eventually he could shed the streamer label, but at least for now Parker should be deployed judiciously, if rostered.
More Fantasy News
Likely to have Tommy John surgery
Parker has been diagnosed with a Grade 3 UCL sprain in his left elbow and is likely to undergo Tommy John surgery, Mark Zuckerman of NatsJournal.com reports.
Analysis
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Shelved by elbow inflammation
The Nationals placed Parker on the 15-day injured list Monday with left elbow inflammation.
Analysis
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Exits relief appearance with injury
Parker exited in the bottom of the seventh inning during his relief appearance in Sunday's 6-4 win over the Orioles due to left elbow discomfort, MLB.com reports. The left-hander struck out two and gave up two runs on two hits and one walk over 1.2 innings before departing the game.
Analysis
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Collects multi-inning save
Parker gave up two runs on three hits and a walk over three relief innings Tuesday to record his first save of the season in a win over the Guardians. He struck out five.
Analysis
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Picks up win in 2026 debut
Parker (1-0) picked up the win Tuesday against the Pirates, allowing two hits with no walks and five strikeouts across two scoreless innings.
Analysis
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Latest Fantasy Rumors
Candidate for Tommy John surgery
Parker, who was placed on the 15-day injured list Tuesday due to elbow inflammation, could require Tommy John surgery, manager Blake Butera told Mark Zuckerman of NatsJournal.com.
Analysis
Even though Parker was placed on the 15-day injured list, all signs point to him missing not only the rest of the 2026 season but also a big chunk of the 2027 campaign. Parker pitched out of the bullpen for the Nats this season, posting a 6.58 ERA and 34:13 K:BB over 39.2 innings of work. Parker should be transferred to the 60-day injured list as soon as the Nats need his 40-man roster spot.
Even though Parker was placed on the 15-day injured list, all signs point to him missing not only the rest of the 2026 season but also a big chunk of the 2027 campaign. Parker pitched out of the bullpen for the Nats this season, posting a 6.58 ERA and 34:13 K:BB over 39.2 innings of work. Parker should be transferred to the 60-day injured list as soon as the Nats need his 40-man roster spot.