Kyle Muller

Kyle Muller

26-Year-Old PitcherRP
Oakland Athletics
2024 Fantasy Outlook
Muller was acquired by Oakland in the three-team deal with Atlanta and Milwaukee prior to the 2023 campaign, and earned a spot in the rotation to open the year. The left-hander was mostly ineffective as a starter, and he was moved to a multi-inning relief role after being promoted back to the Athletics in the middle of August. His poor stats were backed up by the metrics, as Muller ranked near the bottom of the league while allowing a hard-hit percentage of 49.6, an average exit velocity of 92.6 MPH, and he struck out just 15.1 percent of the hitters he faced in his 77 innings of work. Muller might be given a chance to win a spot in the Oakland rotation this spring, but his below-average stuff mixed with mediocre command makes him unworthy of fantasy consideration. Read Past Outlooks
RANKS
Rest of Season
From Preseason
#362
ADP
$Signed a one-year contract with the Athletics in March of 2024.
Comes off IL
POakland Athletics
July 7, 2024
The Athletics reinstated Muller (shoulder) from the 15-day injured list Sunday.
ANALYSIS
Muller had been on the shelf since May 30 with left shoulder tendinitis but will rejoin Oakland after completing four rehab appearances with Triple-A Las Vegas. The southpaw covered three innings and tossed 61 pitches in his final outing for Las Vegas on Saturday, so the Athletics would presumably prefer not to use him in Sunday's series finale with the Orioles. Left-hander Jack O'Loughlin was optioned to Las Vegas in a corresponding move.
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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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Pitching Appearances Breakdown
Average Pitch Count
36
Last 10 Games
32
Last 5 Games
25
How many pitches does Kyle Muller 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 Kyle Muller 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 2022
 
 
-4%
BAA vs LHP
2024
 
 
-6%
BAA vs RHP
2023
 
 
-6%
BAA vs RHP
2022
 
 
-100%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2022vs Left .301 149 24 11 40 8 1 7
Since 2022vs Right .315 431 73 43 120 25 0 17
2024vs Left .259 62 13 2 15 4 0 4
2024vs Right .244 87 16 5 20 5 0 2
2023vs Left .362 78 9 6 25 4 1 3
2023vs Right .341 294 47 33 87 18 0 13
2022vs Left .000 9 2 3 0 0 0 0
2022vs Right .295 50 10 5 13 2 0 2
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2022
 
 
-47%
ERA at Home
2024
 
 
-17%
ERA at Home
2023
 
 
-54%
ERA at Home
2022
 
 
-100%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2022Home 4.48 1.51 64.1 0 2 0 6.4 3.2 1.0
Since 2022Away 8.46 1.90 61.2 2 5 0 7.4 4.5 2.5
2024Home 3.15 1.15 20.0 0 1 0 7.2 2.7 0.5
2024Away 3.78 1.14 16.2 0 0 0 7.0 0.5 2.7
2023Home 5.08 1.67 44.1 0 1 0 6.1 3.5 1.2
2023Away 11.02 2.36 32.2 1 4 0 7.2 6.1 2.8
2022Home 0 0 0 0 0 0 0 0 0
2022Away 8.03 1.70 12.1 1 1 0 8.8 5.8 1.5
More Splits View More Split Stats
Stat Review
How does Kyle Muller 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.
  • 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
4.14
 
K/9
7.1
 
BB/9
1.7
 
HR/9
1.5
 
Fastball
92.8 mph
 
ERA
3.44
 
WHIP
1.15
 
BABIP
.280
 
GB/FB
1.37
 
Left On Base
74.4%
 
Exit Velocity
83.7 mph
 
Barrels/BBE
5.0%
 
Spin Rate
2228 rpm
 
Balls Hit 95+ MPH
24.3%
 
Swinging Strike
10.8%
 
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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Recent RotoWire Articles Featuring Kyle Muller See More
Weekly Pitcher Rankings: Is the Window Closing?
51 days ago
Tarik Skubal of the Detroit Tigers fronts this edition of Todd Zola's Weekly Pitcher Rankings.
Week 8 FAAB Results - Trading Spencer Strider
55 days ago
While it was a relatively quiet FAAB week, Jeff Erickson's big move was to trade Spencer Strider in the RotoWire Staff Keeper League.
Weekly Pitcher Rankings: Two for the Price of One
58 days ago
Chris Sale of the Atlanta Braves heads a great group of two-start pitchers in Todd Zola's Weekly Pitcher Rankings.
MLB Points Leagues: Exploiting the Relief Pitcher Market
89 days ago
Dan Marcus looks at non-closing relievers who can provide value in points leagues, including starters who qualify at RP like the Rays' Zack Littell.
The Z Files: Five Is the New Four
126 days ago
Todd Zola considers the impact of extra rest on starting pitchers and wonders if the Orioles will treat Corbin Burnes with the same care that the Brewers did.
Past Fantasy Outlooks
2023
2022
2021
2017
Muller has logged three or more starts in the majors in back-to-back seasons but he still retains prospect eligibility heading into 2023. The big 6-foot-7 southpaw made notable improvements last year at Triple-A compared to 2021, upping his strikeout rate from 27.0% to 29.3% while dropping his walk rate from 12.9% to 7.4%. He scuffled down the stretch at Triple-A but showed stretches of dominance. Muller had two decent MLB starts in the second half and a terrible start where he walked six batters in 2.2 innings May 1, which dragged down his overall numbers. He threw a career-best 147 innings on the year, so he will be without restrictions in his age-25 season. The range of velocity on Muller's fastball was pretty wide (92 to 97 mph), and he will obviously be more successful if he can consistently sit in the mid-90s rather than regularly dipping into the low-90s. He throws all four of his pitches harder than the average MLB southpaw, and his upper-80s slider is arguably his best pitch. A trade from Atlanta to Oakland won't help Muller in the win column, but he should have a clear path to as many MLB starts as he can handle in 2023.
The last time Muller had a BB% below 12% was at Double-A in 2018, so while he has good size (6-foot-7, 250 pounds) and good stuff, it still requires a bit of a leap of faith to project him as a starter long term. His 93-mph fastball (up to 97) has above-average spin, while his upper-80s slider and low-80s curveball have strong characteristics and worked well against big-league hitters last season. As things stand, Muller will get to compete with Tucker Davidson for the fifth spot in the rotation, but it's possible Atlanta will bring in another starter after the lockout. Given his proximity and strikeout upside, the big southpaw should be a mid-round pick in draft-and-hold leagues, however, he would need a strong spring training to emerge as a solid reserve option in standard redraft leagues.
Muller got a chance to showcase his stuff in spring training following a strong 2019 minor-league campaign, but he was roughed up in two appearances, yielding six earned runs and retiring only three batters. The 6-foot-7 southpaw was nonetheless added to the Braves' 60-man player pool and ended up spending all of 2020 at the team's alternate training site. Muller has generated some buzz within the organization after posting a 3.14 ERA and 25.6 K% at Double-A between 2018 and 2019, though his 14.5 BB% and 16 wild pitches over that span are cause for concern. Part of the problem is a tendency to overthrow; while Muller features a plus mid-90s fastball, his command of the offering tends to waver as he pushes the velocity. He may be best served to better mix in his curveball, which ranks as his second-best pitch. If he can learn to harness his control, Muller could get a chance to contribute as soon as 2021.
While Muller didn't come off the board until the 44th pick in last year's draft, his $2.5 million signing bonus is more in line with the recommended value of the 17th overall pick. This draft subtlety and the fact that there are eight or nine more recognizable pitching prospects in this loaded farm system opens up an opportunity for dynasty league owners to acquire Muller at a discount, relative to his talent. Despite his 6-foot-6, 240-pound frame, Muller relies more on above-average fastball command than elite velocity at this development stage. Given his age and size, he could add a couple ticks in the coming years and move into the mid-90s on a regular basis, but for now his upside is capped at a No. 3 starter. His numbers in the Gulf Coast League were certainly eye-popping, but the southpaw won't receive a true test until the Braves take the training wheels off and allow him to log more than three innings per start while facing hitters in the Appalachian and South Atlantic leagues this season.
More Fantasy News
Hefty workload in latest rehab game
POakland Athletics
Shoulder
July 4, 2024
Muller (shoulder) started Triple-A Las Vegas' loss to Oklahoma City on Tuesday, allowing two earned runs on two hits and a walk over 2.2 innings. He struck out five.
ANALYSIS
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Allows run in second rehab outing
POakland Athletics
Shoulder
June 30, 2024
Muller (shoulder) allowed an earned run on two hits and two walks over 1.1 innings in a relief appearance for Triple-A Las Vegas against Sacramento on Friday. He struck out one.
ANALYSIS
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Scoreless frame in rehab debut
POakland Athletics
Shoulder
June 26, 2024
Muller (shoulder) fired a scoreless inning in his rehab outing with Triple-A Las Vegas on Tuesday, allowing one hit and recording a strikeout.
ANALYSIS
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Beginning assignment Tuesday
POakland Athletics
Shoulder
June 23, 2024
Muller (shoulder) will begin a rehab assignment at Triple-A Las Vegas on Tuesday, Martin Gallegos of MLB.com reports.
ANALYSIS
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Next steps identified
POakland Athletics
Shoulder
June 20, 2024
Muller (shoulder) is scheduled to throw a bullpen session Sunday, MLB.com reports.
ANALYSIS
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Latest Fantasy Rumors
On track for Opening Day roster?
POakland Athletics
December 13, 2022
Muller is a candidate to "open 2023 on the major-league roster," shares Matt Kawahara of the San Francisco Chronicle.
ANALYSIS
Muller, formerly a top pitching prospect for Atlanta, was acquired by Oakland as part of a package in exchange for catcher Sean Murphy. The 25-year-old logged an 8.03 ERA across 12.1 innings last season, but he's a high-profile arm for Oakland moving forward.
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