Kenny Rosenberg

28-Year-Old PitcherSP
2023 Fantasy Outlook
Rosenberg spent the early part of his professional career as a starter before transitioning to the bullpen with Triple-A Durham in 2021. He did well as a reliever, but after the Angels claimed him off waivers during the ensuing offseason, they chose to move him back to into a starting role. The left-hander pitched well enough (3.16 ERA, 1.24 WHIP) at Triple-A last year to get his first major-league call-up, and he ended up hurling 10.2 frames, allowing five earned runs and posting an 8:6 K:BB. Rosenberg's fastball sits in the low-90s, so he'll need to balance it with his other offerings -- primarily a changeup and a slider -- to be effective in the majors. The change is his best pitch of the bunch, but there's nothing that truly stands out in Rosenberg's arsenal, giving him a pretty low ceiling. He was designated for assignment in December, so it's unclear if he'll be back in Los Angeles next season. If he returns, there's a slim chance he could compete for the sixth-starter job, but he's more likly to begin the campaign back in the minors. Read Past Outlooks
$Signed a one-year contract with the Angels in August of 2023.
Strong in bulk role
PLos Angeles Angels
September 30, 2023
Rosenberg threw five innings of scoreless one-hit ball while striking out six and walking none in a no-decision versus the Athletics on Saturday.
ANALYSIS
Rosenberg took over in the third inning after opener Andrew Wantz allowed one run over the first two frames. Rosenberg left in line for the win, but Ben Joyce melted down in the eighth inning to squander the Angels' lead. Over 33 innings, Rosenberg logged a 3.82 ERA despite a 1.48 WHIP and 29:14 K:BB across seven appearances (three starts). The 28-year-old southpaw is too old to be considered much of a prospect, but he could have a chance to compete for a rotation spot in spring training.
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Pitching Stats
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2023
2022
2023 MLB Game Log
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2022 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
78
Last 10 Games
78
Last 5 Games
83
How many pitches does Kenny Rosenberg 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 Kenny Rosenberg 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 2021
 
 
-26%
BAA vs LHP
2023
 
 
-35%
BAA vs LHP
2022
 
 
-14%
BAA vs RHP
2021
No Stats
BAA Batters K BB H 2B 3B HR
Since 2021vs Left .208 59 15 6 11 4 0 1
Since 2021vs Right .280 134 22 14 33 5 0 3
2023vs Left .195 45 11 4 8 3 0 1
2023vs Right .300 101 18 10 27 4 0 2
2022vs Left .250 14 4 2 3 1 0 0
2022vs Right .214 33 4 4 6 1 0 1
2021vs Left 0 0 0 0 0 0 0 0
2021vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2021
Even Split
2023
 
 
-8%
ERA on Road
2022
 
 
-100%
ERA at Home
2021
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2021Home 3.91 1.30 23.0 1 2 0 7.8 2.7 1.2
Since 2021Away 3.92 1.65 20.2 1 0 0 7.4 5.7 0.4
2023Home 3.91 1.30 23.0 1 2 0 7.8 2.7 1.2
2023Away 3.60 1.90 10.0 1 0 0 8.1 6.3 0.0
2022Home 0 0 0 0 0 0 0 0 0
2022Away 4.22 1.41 10.2 0 0 0 6.8 5.1 0.8
2021Home 0 0 0 0 0 0 0 0 0
2021Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does Kenny Rosenberg 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
2.07
 
K/9
7.9
 
BB/9
3.8
 
HR/9
0.8
 
Fastball
90.8 mph
 
ERA
3.82
 
WHIP
1.48
 
BABIP
.333
 
GB/FB
1.22
 
Left On Base
78.1%
 
Exit Velocity
82.4 mph
 
Barrels/BBE
5.4%
 
Spin Rate
1933 rpm
 
Balls Hit 95+ MPH
21.2%
 
Swinging Strike
10.4%
 
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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More Fantasy News
Picks up second win
PLos Angeles Angels
September 24, 2023
Rosenberg (2-2) earned the win Saturday, allowing five hits and two walks over five scoreless innings against the Twins while striking out five.
ANALYSIS
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Falters as primary pitcher
PLos Angeles Angels
September 17, 2023
Rosenberg (1-2) allowed five runs on seven hits and two walks while striking out five over five innings to take the loss versus the Tigers on Sunday.
ANALYSIS
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Set to work as bulk pitcher
PLos Angeles Angels
September 17, 2023
Rosenberg is expected to pitch behind opener Jimmy Herget against the Tigers on Sunday, Sam Blum of The Athletic reports.
ANALYSIS
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Solid in Sunday's win
PLos Angeles Angels
September 10, 2023
Rosenberg (1-1) allowed one run on six hits and a walk while striking out four over five innings to earn the win over the Guardians on Sunday.
ANALYSIS
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Picks up another start
PLos Angeles Angels
September 8, 2023
Rosenberg is scheduled to start Sunday's game against the Guardians at Angel Stadium.
ANALYSIS
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