John McMillon

John McMillon

26-Year-Old PitcherRP
Miami Marlins
15-Day IL
Injury Elbow
Est. Return 9/27/2024
2024 Fantasy Outlook
McMillon was initially drafted by the Rays in 2016, but he opted to play collegiately at Texas Tech University. In 2019, the Tigers drafted McMillon, but he returned to the Red Raiders for his senior year. McMillon went undrafted in the five-round 2020 MLB draft but was signed by the Royals. McMillon worked his way through the Royals system, displaying the ability to miss bats, but with a penchant for issuing free passes. After a stint with Double-A Northwest Arkansas where McMillon registered a .87 ERA with 30 strikeouts in 20.2 innings, McMillon was summoned to the Show in mid-August. McMillon managed to make four one-inning appearances before he was shut down for the season with a right forearm strain. McMillon impressed, allowing just one earned run while punching out eight in four innings. He's expected to be healthy in the spring and be a key component of the Royals bullpen, perhaps in a late-inning capacity. If McMillon can keep walks under control, he's dominant enough to be a fantasy asset, even if he's not collecting saves or holds. Read Past Outlooks
RANKS
Rest of Season
From Preseason
#375
ADP
$Signed a one-year contract with the Royals in February of 2024. Waived by the Royals in August of 2024. Claimed off waivers by the Marlins in August of 2024.
Lands on IL
PMiami Marlins
Elbow
September 12, 2024
The Marlins placed McMillon on the 15-day injured list Thursday with right elbow tightness.
ANALYSIS
McMillon threw just two pitches and gave up a single before his injury forced him out of Wednesday's game against Pittsburgh, and he will now be forced to sit out until at least Sept. 27. The 26-year-old righty owns a 1.50 ERA and 1.00 WHIP across 12 innings in the majors this season, but given the fact Miami has already been eliminated from the postseason, the Marlins likely won't be in any rush to bring him back.
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Pitching Stats
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2024
2023
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Pitching Appearances Breakdown
Average Pitch Count
18
Last 10 Games
18
Last 5 Games
12
How many pitches does John McMillon 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 John McMillon 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
 
 
-64%
BAA vs RHP
2024
 
 
-43%
BAA vs RHP
2023
 
 
-100%
BAA vs RHP
2022
No Stats
BAA Batters K BB H 2B 3B HR
Since 2022vs Left .214 31 5 3 6 0 0 2
Since 2022vs Right .077 29 16 2 2 0 0 0
2024vs Left .208 27 4 3 5 0 0 1
2024vs Right .118 20 9 2 2 0 0 0
2023vs Left .250 4 1 0 1 0 0 1
2023vs Right .000 9 7 0 0 0 0 0
2022vs Left 0 0 0 0 0 0 0 0
2022vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2022
 
 
-100%
ERA on Road
2024
 
 
-100%
ERA on Road
2023
 
 
-100%
ERA on Road
2022
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2022Home 3.52 1.30 7.2 2 1 0 11.7 4.7 2.3
Since 2022Away 0.00 0.36 8.1 0 0 0 11.9 1.1 0.0
2024Home 2.70 1.35 6.2 2 1 0 10.8 5.4 1.4
2024Away 0.00 0.56 5.1 0 0 0 8.4 1.7 0.0
2023Home 9.00 1.00 1.0 0 0 0 18.0 0.0 9.0
2023Away 0.00 0.00 3.0 0 0 0 18.0 0.0 0.0
2022Home 0 0 0 0 0 0 0 0 0
2022Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does John McMillon 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
2.60
 
K/9
9.8
 
BB/9
3.8
 
HR/9
0.8
 
Fastball
95.3 mph
 
ERA
1.50
 
WHIP
1.00
 
BABIP
.224
 
GB/FB
1.30
 
Left On Base
75.5%
 
Exit Velocity
79.8 mph
 
Barrels/BBE
2.1%
 
Spin Rate
2236 rpm
 
Balls Hit 95+ MPH
16.7%
 
Swinging Strike
16.1%
 
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 John McMillon See More
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More Fantasy News
Recalled from Triple-A
PMiami Marlins
August 9, 2024
The Marlins recalled McMillon from Triple-A Jacksonville on Friday.
ANALYSIS
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Claimed by Miami
PMiami Marlins
August 2, 2024
The Marlins claimed McMillon off waivers from the Royals on Friday.
ANALYSIS
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Departs 40-man roster
PKansas City Royals
July 30, 2024
The Royals designated McMillon for assignment Tuesday, Anne Rogers of MLB.com reports.
ANALYSIS
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Sent to Triple-A
PKansas City Royals
March 12, 2024
The Royals optioned McMillon to Triple-A Omaha on Tuesday.
ANALYSIS
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Cleared for spring debut
PKansas City Royals
March 6, 2024
McMillon (forearm) is scheduled to make a relief appearance in Wednesday's Cactus League game against the Mariners, Anne Rogers of MLB.com reports.
ANALYSIS
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