Garrett Whitlock

Garrett Whitlock

28-Year-Old PitcherSP
Boston Red Sox
Out
Injury Elbow
Est. Return 5/1/2025
2024 Fantasy Outlook
Whitlock had a delayed start last season after undergoing hip surgery in 2022, but made his debut in early April. The 27-year-old right-hander opened 2023 in Boston's starting rotation and had mixed results, alternating good starts with bad ones. Combining this inconsistency with a couple of trips to the injured list - both for right elbow issues - was enough to dim Whitlock's fantasy light last season. After missing about three months total, Whitlock returned to the mound in August, this time as a multi-inning reliever. However, he couldn't quite get the handle of his changeup (.312 BA, .559 SLG), which has been a reliable offering since his rookie season. On the plus side, Whitlock struck out 25 over his final 20 innings and still possesses some upside if the Red Sox can ever settle on his role. At this point it's unclear which direction Boston plans to go, but keeping him as a reliever would make sense given he's topped 90 innings just once in his professional career, which was his first full season back in 2018. Read Past Outlooks
RANKS
Rest of Season
From Preseason
#363
ADP
$Signed four-year, $17.75 million contract extension with the Red Sox in April of 2022. Contract includes $8.25 million team option ($1 million buyout) for 2027 and $10.5 million team option ($500,000 buyout) for 2028.
Role for 2025 undecided
PBoston Red Sox
Elbow
November 6, 2024
Red Sox chief baseball officer Craig Breslow said Tuesday that the team is undecided on what role Whitlock (elbow) will fill in 2025, Christopher Smith of MassLive.com reports.
ANALYSIS
Breslow added that he does plan to define Whitlock's role eventually, but factoring into the decision will be what happens with other potential pitching additions the club makes this offseason. Whitlock underwent an internal brace procedure in May and is likely to get a late start to 2025 regardless of the role he fills, although the rehab would take longer if the Red Sox elect to stretch him out to be in the rotation.
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Pitching Stats
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2024
2023
2022
2021
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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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Pitching Appearances Breakdown
Average Pitch Count
80
Last 10 Games
80
Last 5 Games
80
How many pitches does Garrett Whitlock 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 Garrett Whitlock 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
 
 
-22%
BAA vs LHP
2024
 
 
-46%
BAA vs LHP
2023
 
 
-16%
BAA vs LHP
2022
 
 
-21%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2022vs Left .216 308 69 12 63 20 0 10
Since 2022vs Right .278 382 102 23 98 16 3 14
2024vs Left .163 48 8 3 7 2 0 1
2024vs Right .304 27 9 4 7 2 0 0
2023vs Left .260 130 33 5 32 8 0 6
2023vs Right .309 174 39 8 50 10 2 7
2022vs Left .192 130 28 4 24 10 0 3
2022vs Right .244 181 54 11 41 4 1 7
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2022
 
 
-18%
ERA at Home
2024
 
 
-68%
ERA on Road
2023
 
 
-26%
ERA at Home
2022
 
 
-14%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2022Home 3.65 1.14 91.1 6 1 5 8.6 1.9 0.9
Since 2022Away 4.44 1.19 77.0 4 6 2 9.8 1.9 1.8
2024Home 3.00 1.11 9.0 0 0 0 5.0 3.0 1.0
2024Away 0.96 1.18 9.1 1 0 0 11.6 3.9 0.0
2023Home 4.37 1.34 35.0 3 1 0 9.8 2.6 0.5
2023Away 5.89 1.31 36.2 2 4 1 8.3 0.7 2.7
2022Home 3.23 0.99 47.1 3 0 5 8.4 1.1 1.1
2022Away 3.77 1.06 31.0 1 2 1 11.0 2.6 1.2
More Splits View More Split Stats
Stat Review
How does Garrett Whitlock 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
2.43
 
K/9
8.3
 
BB/9
3.4
 
HR/9
0.5
 
Fastball
93.4 mph
 
ERA
1.96
 
WHIP
1.15
 
BABIP
.273
 
GB/FB
1.69
 
Left On Base
86.7%
 
Exit Velocity
81.5 mph
 
Barrels/BBE
5.2%
 
Spin Rate
2037 rpm
 
Balls Hit 95+ MPH
22.6%
 
Swinging Strike
7.8%
 
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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Past Fantasy Outlooks
2023
2022
2021
Whitlock's status last winter was sky high after his surprising major-league debut as a Rule 5 pick and there were as many speculating him as a starter as those believing he could even close. At the end of the day, he pitched nearly a 50/50 split as a starter and reliever with the latter work coming once he returned from the injured list with a hip issue in the summer. His numbers were more dominant as a reliever (.237 wOBA) than as a starter (.315 wOBA), but the hip certainly was a factor as it was bad enough require surgery to ultimately address the soreness after the season. The offseason acquisitions of both Kenley Jansen and Chris Martin should allow Boston the flexibility of pushing Whitlock back into the rotation as long as his offseason hip surgery recovery goes as well as expected. His overall numbers are helped by just how dominant he was in relief, but in two seasons of major league work, he has yet to have a pitch with below a 20% Whiff rate. Given the fact the entire Boston rotation is a health question mark, Whitlock could end up being the best of all the non-Sale options when it is all said and done.
Whitlock, the fourth pick of the Rule 5 draft, made the Red Sox roster out of spring training and played an unexpected but important role in 2021. The former Yankees prospect pitched multiple innings in 31 of his 46 appearances, often in high-leverage. The rookie went 8-4 with 15 holds and two saves and posted a fantastic 1.96 ERA and 1.10 WHIP over 73.1 innings. The 25-year-old relies on a four-pitch arsenal of a sinker, slider, changeup and fastball. He struggles against left-handed hitters (.293 BAA), but posted a solid 27.2% strikeout rate, 5.7% walk rate and 49.7% groundball rate. Whitlock's ability to go multiple innings could lead to a bigger role in Boston's starting rotation, or he could maintain to a similar multi-inning relief role. Some ratio regression is expected either way, but if Whitlock returns to the bullpen you can count on some wins, holds and potentially saves.
This player will receive an outlook for the 2021 fantasy baseball season.
More Fantasy News
Starting throwing program Thursday
PBoston Red Sox
Elbow
September 25, 2024
Whitlock (elbow) will begin a throwing program Thursday, Gabrielle Starr of the Boston Herald reports.
ANALYSIS
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Heads to 60-day IL
PBoston Red Sox
Elbow
June 2, 2024
The Red Sox transferred Whitlock (elbow) from the 15-day injured list to the 60-day IL on Sunday.
ANALYSIS
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Done for season after procedure
PBoston Red Sox
Elbow
May 31, 2024
Whitlock (elbow) underwent an internal bracing procedure Thursday and will not pitch again in 2024, Julian McWilliams of The Boston Globe reports.
ANALYSIS
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Undergoing surgery Thursday
PBoston Red Sox
Elbow
May 30, 2024
Whitlock (elbow) will undergo internal brace surgery Thursday, Chris Cotillo of The Springfield Republican reports.
ANALYSIS
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Headed for surgery
PBoston Red Sox
Elbow
May 25, 2024
Whitlock said Saturday that he is expecting to undergo an internal brace procedure for his right elbow, Jen McCaffrey of The Athletic reports.
ANALYSIS
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Latest Fantasy Rumors
Will move into starting rotation
PBoston Red Sox
November 9, 2022
Whitlock, who finished the 2022 season dealing with a hip injury, was told that he will almost certainly be a starter in 2023, Chris Cotillo of The Springfield Republican reports.
ANALYSIS
Whitlock made 31 appearances for the Red Sox in 2022, with nine of them coming as a starter. His reputation as one of the best arms in Boston's bullpen -- he has a 2.73 ERA and 1.06 WHIP in his career -- combined with his ability to pitch multiple innings makes him fit to be a rotation candidate.
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