Mitchell Parker

Mitchell Parker

25-Year-Old PitcherSP
Washington Nationals
2025 Fantasy Outlook
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. Read Past Outlooks
RANKS
Rest of Season
From Preseason
#428
ADP
Signed a one-year contract with the Nationals in March of 2025.
Takes third straight loss
PWashington Nationals
August 12, 2025
Parker (7-13) took the loss Tuesday against the Royals, allowing five runs on two hits and three walks while striking out three in 5.1 innings.
Analysis
Parker allowed five batters to reach and saw all five come in to score. He made one big mistake to Vinnie Pasquantino, who turned on an inside fastball for a three-run blast. Parker otherwise was able to induce weak contact and his box score looks far worse than his actual outing. Still, the left-hander has now given up 17 earned runs and four homers across his last three starts and lines up to complete a two-start week against the Phillies this weekend.
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Pitching Stats
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2025 MLB Game Log
2025
2024
2025 MLB Game Log
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Scoring
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2024 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
87
Last 10 Games
87
Last 5 Games
86
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+
 
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+
 
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
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
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 2023
 
 
-6%
BAA vs RHP
2025
Even Split
2024
 
 
-11%
BAA vs RHP
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .278 299 62 24 75 11 4 5
Since 2023vs Right .261 914 155 68 217 56 2 30
2025vs Left .273 143 21 17 33 4 3 4
2025vs Right .273 424 63 32 105 32 1 13
2024vs Left .282 156 41 7 42 7 1 1
2024vs Right .251 490 92 36 112 24 1 17
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2023
 
 
-43%
ERA at Home
2025
 
 
-22%
ERA at Home
2024
 
 
-60%
ERA at Home
2023
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 3.67 1.25 159.1 10 11 0 7.2 2.3 1.1
Since 2023Away 6.47 1.55 119.2 4 12 0 6.7 3.9 1.2
2025Home 4.94 1.49 71.0 5 7 0 6.5 3.2 1.0
2025Away 6.32 1.42 57.0 2 6 0 5.2 3.8 1.4
2024Home 2.65 1.05 88.1 5 4 0 7.8 1.5 1.1
2024Away 6.61 1.66 62.2 2 6 0 8.0 4.0 1.0
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does Mitchell Parker compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 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 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
  • BABIP
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
K/BB
1.71
 
K/9
5.9
 
BB/9
3.4
 
HR/9
1.2
 
Fastball
92.9 mph
 
ERA
5.55
 
WHIP
1.46
 
BABIP
.304
 
GB/FB
1.00
 
Left On Base
60.7%
 
Exit Velocity
84.6 mph
 
Barrels/BBE
5.6%
 
Spin Rate
2048 rpm
 
Balls Hit 95+ MPH
31.5%
 
Swinging Strike
9.5%
 
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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Recent RotoWire Articles Featuring Mitchell Parker See More
Recent RotoWire Articles Featuring Mitchell Parker See More
2024 Fantasy Outlook
A 24-year-old lefty, Parker has been a notable prospect in a shallow Nationals farm system for a couple years, but poor control and middling stuff limited his realistic upside. Parker primarily operates with a 92-mph four-seamer with solid movement and an 80-mph curveball while also mixing in a mid-80s splitter. He walked between 11.1 and 15.4 percent of batters from 2022 through 2023 while pitching in the mid-to-upper minors, and he doesn't have the pure stuff to have success with that many free passes, but only issued one walk in his first two starts of 2024, with one of those coming against the Dodgers' big-league lineup. Assuming Parker spends a good chunk of 2024 in the big-league rotation, he could be a deep-league streamer in good matchups, but there's not much data to suggest he can maintain the success he's had early in the season.
More Fantasy News
Takes 12th loss
PWashington Nationals
August 7, 2025
Parker (7-12) took the loss Thursday against the A's, allowing four runs on six hits and three walks over five innings. He struck out four.
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Mauled by Milwaukee
PWashington Nationals
August 2, 2025
Parker (7-11) took the loss Friday as the Nationals were downed 16-9 by the Brewers, surrendering eight runs on 12 hits and a walk over four-plus innings. He struck out three.
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Earns seventh win
PWashington Nationals
July 27, 2025
Parker (7-10) earned the win Saturday, allowing two runs on eight hits and one walk over 5.2 innings against the Twins. He struck out four.
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Logs quality start in win
PWashington Nationals
July 19, 2025
Parker (6-10) earned the win against the Padres on Saturday, allowing two runs on five hits and one walk with four strikeouts over five innings.
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Hammered for seven runs in loss
PWashington Nationals
July 12, 2025
Parker (5-10) took the loss Friday against the Brewers, giving up seven runs on eight hits and three walks in 4.2 innings. He didn't record a strikeout.
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