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.
Yields three runs in no-decision
PWashington Nationals
June 29, 2025
Parker allowed three runs on six hits and three walks while striking out three over five innings in a no-decision versus the Angels on Sunday.
ANALYSIS
Parker held his own in this outing, throwing 48 of 76 pitches for strikes. He lost four of his six starts in June, but he was able to limit the damage to three runs or less in five of them. Parker is now at a 4.63 ERA, 1.35 WHIP and 62:36 K:BB through 91.1 innings over 17 starts this season. The southpaw's next start is expected to be at home versus the Red Sox.
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Pitching Stats
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2025
2024
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Pitching Appearances Breakdown
Average Pitch Count
87
Last 10 Games
85
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
 
 
-11%
BAA vs RHP
2025
 
 
-13%
BAA vs RHP
2024
 
 
-11%
BAA vs RHP
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .280 255 56 19 65 11 3 3
Since 2023vs Right .248 784 139 60 176 40 1 26
2025vs Left .277 99 15 12 23 4 2 2
2025vs Right .242 294 47 24 64 16 0 9
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
 
 
-51%
ERA at Home
2025
 
 
-33%
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 3.06 1.16 138.1 9 8 0 7.4 2.2 1.0
Since 2023Away 6.23 1.54 104.0 3 10 0 7.1 3.9 1.2
2025Home 3.78 1.34 50.0 4 4 0 6.5 3.4 0.7
2025Away 5.66 1.35 41.1 1 4 0 5.7 3.7 1.5
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
1.72
 
K/9
6.1
 
BB/9
3.5
 
HR/9
1.1
 
Fastball
92.9 mph
 
ERA
4.63
 
WHIP
1.35
 
BABIP
.280
 
GB/FB
1.02
 
Left On Base
66.9%
 
Exit Velocity
83.8 mph
 
Barrels/BBE
4.8%
 
Spin Rate
1993 rpm
 
Balls Hit 95+ MPH
29.6%
 
Swinging Strike
9.8%
 
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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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
Snaps losing streak Monday
PWashington Nationals
June 23, 2025
Parker (5-8) earned the win over San Diego on Monday, allowing three runs on six hits and two walks while striking out one batter over six innings.
ANALYSIS
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Delivers quality start in loss
PWashington Nationals
June 18, 2025
Parker (4-8) took the loss Wednesday against the Rockies, allowing one run on six hits over six innings. He struck out eight.
ANALYSIS
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Crushed for six runs in loss
PWashington Nationals
June 13, 2025
Parker (4-7) took the loss against the Marlins on Friday, allowing six runs on eight hits and three walks while striking out three across 3.1 innings.
ANALYSIS
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Takes sixth loss
PWashington Nationals
June 7, 2025
Parker (4-6) took the loss Saturday, allowing two runs (one earned) on four hits and no walks over six innings against Texas. He struck out five.
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Struggles early in loss
PWashington Nationals
June 1, 2025
Parker (4-5) allowed three runs on three hits and two walks while striking out two over five-plus innings to take the loss versus the Diamondbacks on Sunday.
ANALYSIS
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