Brandon Williamson

Brandon Williamson

26-Year-Old PitcherSP
Cincinnati Reds
60-Day IL
Injury Elbow
Est. Return 2/1/2026
2024 Fantasy Outlook
Williamson looked worn out down the stretch in 2023, which was probably predictable given that it was his first big-league season. An early-September stint on the COVID IL may have also been a critical tipping point. Prior to the diagnosis, the 25-year-old left-hander held a 4.20 ERA and 87 strikeouts through 98.2 innings and was sitting 94-95 mph with his fastball. Following his return to the Reds' active roster, he gave up 12 earned runs and an .858 opponents' OPS across his final four starts covering 18.2 innings, with his fastball velocity dropping into the 91-92 mph range. Williamson will have to compete for an Opening Day rotation spot this spring and aim to rediscover the form that saw him register a 3.15 ERA and 58:16 K:BB in 60 innings (11 starts) between July and August last year. He should be on watch lists either way. Read Past Outlooks
RANKS
Rest of Season
From Preseason
#390
ADP
$Signed a one-year contract with the Reds in March of 2024.
Shifts to 60-day injured list
PCincinnati Reds
Elbow
September 25, 2024
The Reds transferred Williamson (elbow) to the 60-day injured list Tuesday.
ANALYSIS
The transaction clears a spot on the 40-man roster for Ian Gibaut, who was activated from the 60-day IL. Williamson is set to undergo Tommy John surgery, which is likely to sideline him until 2026.
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Pitching Stats
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2024
2023
2020
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Scoring
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2023 MLB Game Log
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2020 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
64
Last 10 Games
64
Last 5 Games
64
How many pitches does Brandon Williamson 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 Brandon Williamson 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
 
 
-18%
BAA vs RHP
2024
 
 
-68%
BAA vs RHP
2023
 
 
-8%
BAA vs RHP
2022
No Stats
BAA Batters K BB H 2B 3B HR
Since 2022vs Left .284 102 17 9 25 2 0 4
Since 2022vs Right .234 448 93 35 96 25 1 18
2024vs Left .444 12 2 1 4 0 0 2
2024vs Right .143 47 10 4 6 1 0 2
2023vs Left .266 90 15 8 21 2 0 2
2023vs Right .245 401 83 31 90 24 1 16
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
 
 
-5%
ERA on Road
2024
 
 
-76%
ERA on Road
2023
 
 
-9%
ERA at Home
2022
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2022Home 4.50 1.20 60.0 2 2 0 8.1 2.6 2.1
Since 2022Away 4.29 1.30 71.1 3 3 0 7.1 3.4 1.0
2024Home 7.71 1.71 4.2 0 0 0 11.6 3.9 5.8
2024Away 1.86 0.72 9.2 0 0 0 5.6 2.8 0.9
2023Home 4.23 1.16 55.1 2 2 0 7.8 2.4 1.8
2023Away 4.67 1.39 61.2 3 3 0 7.3 3.5 1.0
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 Brandon Williamson 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
2.40
 
K/9
7.5
 
BB/9
3.1
 
HR/9
2.5
 
Fastball
92.7 mph
 
ERA
3.77
 
WHIP
1.05
 
BABIP
.174
 
GB/FB
0.87
 
Left On Base
85.1%
 
Exit Velocity
79.4 mph
 
Barrels/BBE
3.5%
 
Spin Rate
2271 rpm
 
Balls Hit 95+ MPH
22.4%
 
Swinging Strike
7.4%
 
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
2023
2022
Williamson was one of the key pieces acquired by the Reds from the Mariners in the Jesse Winker/Eugenio Suarez trade. The former second-round pick was coming off a dominant 2021 season in the minors which concluded at the Double-A level, setting himself up to be part of the Reds' 2022 rotation at some point. It didn't happen, though, as the left-hander showed regression across the board both in terms of numbers and stuff. His lack of control was particularly alarming, as he went from an 8.1 percent walk rate in 2021 to a 13.9 percent walk rate in 2022. Williamson was added to the 40-man roster over the offseason, and there should be starts available to him for the Reds if he can bounce back. Fantasy managers should take more of a wait-and-see approach, though.
While Williamson's fastball may not seem elite from a velocity standpoint (93 mph average, touches 97), it is a perfect pitch in every other sense. He is a 6-foot-6 lefty, so the pitch plays up just via extension and handedness, but it's the induced vertical break that makes the pitch such a monster. His fastball got whiffs at a 37% clip and was thrown for strikes at a 69% clip, rates that are up there with the best pitchers in the minors. Williamson also boasts one of the best curveballs in the minors, although that pitch is thrown in the mid-70s, so it lacks the velocity of the breaking balls that typically play as 70-grade pitches in the majors. His changeup and slider are average offerings. Williamson logged a 37.4 K% and an 8.1 BB% in 98.1 innings across High-A and Double-A. He has passed Emerson Hancock in the pecking order, and is right there with George Kirby and Matt Brash as one of Seattle's future rotation anchors. Williamson is not on the 40-man roster, but he could still make a handful of starts in the majors later this summer.
More Fantasy News
Requires Tommy John surgery
PCincinnati Reds
Elbow
September 18, 2024
Williamson said Wednesday that he has a full UCL tear in his left elbow and will require Tommy John surgery, Mark Sheldon of MLB.com reports.
ANALYSIS
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Done for season with strained elbow
PCincinnati Reds
Elbow
September 18, 2024
The Reds placed Williamson on the 15-day injured list Wednesday with a left elbow strain.
ANALYSIS
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Diagnosed with elbow strain
PCincinnati Reds
Elbow
September 17, 2024
Williamson left Tuesday's game against Atlanta with a left elbow strain, Charlie Goldsmith of The Cincinnati Enquirer reports.
ANALYSIS
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Exits with trainer
PCincinnati Reds
Elbow
September 17, 2024
Williamson was removed from his start Tuesday against Atlanta with an apparent injury, Gordon Wittenmyer of The Cincinnati Enquirer reports.
ANALYSIS
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Gives up one run to Cardinals
PCincinnati Reds
September 11, 2024
Williamson allowed one run on three hits and two walks while striking out five over five innings in a no-decision versus the Cardinals on Wednesday.
ANALYSIS
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Latest Fantasy Rumors
Will be added to 40-man
PCincinnati Reds
November 13, 2022
Williamson will join Cincinnati's 40-man roster by Tuesday, reports Bobby Nightengale of The Cincinnati Enquirer.
ANALYSIS
Williamson spent time at both Double-A Chattanooga and Triple-A Louisville in 2022, posting a 4.11 ERA, 1.56 WHIP and 1.60 K/BB in 122.2 combined innings. It was a dramatic dip in production from his 2021 production when he was a member of the Mariners' organization. Moving him to the 40-man roster will protect him from being selected in December's Rule 5 Draft.
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