Kumar Rocker

Kumar Rocker

25-Year-Old PitcherSP
Texas Rangers
15-Day IL
Injury Shoulder
Est. Return 6/4/2025
2025 Fantasy Outlook
Few pitchers in recent memory returned from Tommy John surgery with such immediate and obvious success as Rocker at the end of 2024. He has significant pedigree and was a famous pitcher at Vanderbilt from 2019 through 2021, but Rocker wasn't on any top-100 prospect lists last season prior to returning to action. Rocker had Tommy John surgery in mid-May of 2023 and began his rehab assignment the first week of July 2024. That's a speedy recovery for a young, prized pitcher like Rocker, and after three short outings in the Arizona Complex League, the 6-foot-5 righty logged a 0.91 ERA, 0.57 WHIP and 47:4 K:BB in 29.2 innings over his next seven minor-league starts at Double-A and Triple-A. That level of dominance -- and the frontline-caliber stuff he was showing -- was not expected, but he quickly became the talk of the minors, culminating in a 10-K, one-hit, five-inning start for Triple-A Round Rock in late-August. Rocker made three big-league starts to close the year, with Texas signaling that he will be part of the rotation in 2025. His mid-90s fastball is a good pitch, but it's his mid-80s curveball (often mistakenly classified as a slider) that dominates hitters, particularly righties. If Rocker can add a quality cutter or changeup to his arsenal, that could allow him to be one of the better starters in the game, but as things stand, he should still rack up strikeouts on a per-start basis. He only logged 48.1 innings in 2024, so look for him to fall short of 150 innings this year. Read Past Outlooks
RANKS
Rest of Season From Preseason
#294
ADP
$Signed a one-year contract with the Rangers in March of 2025.
Set to rejoin rotation
PTexas Rangers
Shoulder
June 1, 2025
Rocker (shoulder) is expected to be reinstated from the 15-day injured list to start Wednesday against the Rays, Shawn McFarland of The Dallas Morning News reports.
ANALYSIS
The right-hander seemed likely require at least one additional rehab outing after throwing 53 pitches over four scoreless innings Thursday for Triple-A Round Rock, but he's instead set to rejoin the Rangers since Nathan Eovaldi (triceps) was placed on the injured list Sunday. Rocker figures to have some workload limitations in his first start back in the majors, but he pitched well in his two rehab outings with an 8:1 K:BB across seven shutout innings.
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Pitching Stats
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2025
2024
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Pitching Appearances Breakdown
Average Pitch Count
72
Last 10 Games
72
Last 5 Games
72
How many pitches does Kumar Rocker 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 Kumar Rocker 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
 
 
-18%
BAA vs RHP
2025
 
 
-42%
BAA vs RHP
2024
 
 
-48%
BAA vs LHP
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .348 76 13 8 23 4 0 2
Since 2023vs Right .284 74 17 3 19 2 1 2
2025vs Left .432 48 5 3 19 4 0 2
2025vs Right .250 47 11 2 11 2 1 1
2024vs Left .182 28 8 5 4 0 0 0
2024vs Right .348 27 6 1 8 0 0 1
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
 
 
-69%
ERA at Home
2025
 
 
-81%
ERA at Home
2024
 
 
-28%
ERA at Home
2023
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 3.00 1.13 15.0 1 1 0 8.4 2.4 0.0
Since 2023Away 9.72 2.16 16.2 0 4 0 8.6 3.8 2.2
2025Home 3.00 0.92 12.0 1 0 0 6.8 0.0 0.0
2025Away 15.75 3.00 8.0 0 3 0 7.9 5.6 3.4
2024Home 3.00 2.00 3.0 0 1 0 15.0 12.0 0.0
2024Away 4.15 1.38 8.2 0 1 0 9.3 2.1 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 Kumar Rocker 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
3.20
 
K/9
7.2
 
BB/9
2.3
 
HR/9
1.4
 
Fastball
95.4 mph
 
ERA
8.10
 
WHIP
1.75
 
BABIP
.401
 
GB/FB
2.00
 
Left On Base
51.9%
 
Exit Velocity
87.2 mph
 
Barrels/BBE
8.0%
 
Spin Rate
2138 rpm
 
Balls Hit 95+ MPH
32.8%
 
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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2023 Fantasy Outlook
Unfortunately, Rocker's fame and draft pedigree (selected third overall by Texas) greatly outstrip his current dynasty value. Rocker famously didn't sign in 2021 after the Mets selected him with the No. 10 overall pick and he subsequently failed his physical. He had arthroscopic shoulder surgery last September and returned to the mound in the summer of 2022 for the Tri-City ValleyCats of the Frontier League. Rocker's signature upper-90s fastball and 70-grade slider were intact when scouts went to see him, which was enough for him to get a big payday. However, he went to the Arizona Fall League after signing and looked like a future reliever. He walked 12 in 14 innings over six appearances and essentially only trusted his slider. It's possible that Rocker was just disinterested and will look like a different pitcher this spring, but the Rangers shocking everyone by taking him with the third pick shouldn't be used as an appeal to authority with regard to his current dynasty value.
More Fantasy News
Impressive in rehab start
PTexas Rangers
Shoulder
May 31, 2025
Rocker (shoulder) allowed one walk and struck out five over four hitless and scoreless innings for Triple-A Round Rock on Thursday.
ANALYSIS
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Shifting rehab to Triple-A
PTexas Rangers
Shoulder
May 27, 2025
Rocker (shoulder) will transfer his rehab program to Triple-A Round Rock on Thursday, Jeff Wilson of AllDLLS.com reports.
ANALYSIS
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Encouraging rehab start
PTexas Rangers
Shoulder
May 24, 2025
Rocker (shoulder) allowed two hits and no walks and struck out three over three scoreless innings Friday in a rehab start with Double-A Frisco.
ANALYSIS
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Starting rehab assignment
PTexas Rangers
Shoulder
May 22, 2025
Rocker (shoulder) will begin a rehab assignment with Double-A Frisco on Friday, Evan Grant of The Dallas Morning News reports.
ANALYSIS
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Rehab assignment imminent
PTexas Rangers
Shoulder
May 19, 2025
Rocker (shoulder) will begin a rehab assignment later this week as long as he bounces back well from a two-inning live batting practice session he threw Sunday, Shawn McFarland of The Dallas Morning News reports.
ANALYSIS
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Latest Fantasy Rumors
Rangers shoot down closing report
PTexas Rangers
May 26, 2025
Rangers' president of baseball operations Chris Young said Monday that the Rangers are not considering Rocker in the closer role when he returns from the injured list due to a shoulder injury , Evan Grant of The Dallas Morning News reports.
ANALYSIS
An earlier report indicated Rocker was in legitimate consideration to be the Rangers' closer once healthy, but the team intends to deploy Rocker as a starter in the short and long term. Per Grant, Texas could use him out of the bullpen for a short stint if necessary but have not considered him for ninth-inning work. The Rangers' bullpen has struggled in 2025 and they've yet to find a long-term answer at closer, and it appears that Rocker will not be a potential solution.
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