Garrett Whitlock

Garrett Whitlock

28-Year-Old PitcherRP
Boston Red Sox
2025 Fantasy Outlook
A strong spring earned Whitlock a spot in the Red Sox's Opening Day rotation in 2024. He made four starts, leaving the last with an oblique injury. While on rehab, he experienced soreness in his right elbow and was soon diagnosed with an injured right UCL. Whitlock avoided Tommy John surgery, instead undergoing the internal brace procedure that entails a still lengthy, but shorter, rehab than Tommy John. He began throwing in the fall but may not be ready for opening day. His role is up in the air and may depend on the constitution of the Red Sox staff at the time. The club is likely to choose a path in the spring. It could take longer to stretch out for a starting role. Whitlock has demonstrated the ability to be effective in any role, though there's always uncertainty returning from major surgery. His role and effectiveness are unclear, but he's worth a speculative pick, especially in leagues with a fantasy IL, or the ability to cut bait if needed. Read Past Outlooks
RANKS
Rest of Season
From Preseason
#418
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.
Makes spring debut
PBoston Red Sox
March 8, 2025
Whitlock allowed an unearned run on one hit and struck out one over one inning in Friday's spring game against the Marlins.
ANALYSIS
Whitlock made his Grapefruit League debut Friday and worked the fourth inning when Miami's regulars were still in the lineup. He's spent the last 10 months recovering from an internal brace procedure, but Boston manager Alex Cora still sees Whitlock as a high-leverage reliever that can throw multiple innings.
Read More News
Pitching Stats
Loading Pitching Stats...
2025
2024
2023
2022
2021
2025 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2024 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2023 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2022 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2021 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
Minor League Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Loading Minor League Pitching Game Log...
Pitching Appearances Breakdown
Average Pitch Count
23
Last 10 Games
23
Last 5 Games
23
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 2023
 
 
-23%
BAA vs LHP
2025
 
 
-100%
BAA vs LHP
2024
 
 
-46%
BAA vs LHP
2023
 
 
-16%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .234 179 41 8 39 10 0 7
Since 2023vs Right .304 207 49 12 58 12 2 7
2025vs Left .000 1 0 0 0 0 0 0
2025vs Right .167 6 1 0 1 0 0 0
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
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2023
 
 
-13%
ERA at Home
2025
No Stats
2024
 
 
-68%
ERA on Road
2023
 
 
-26%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 4.09 1.30 44.0 3 1 0 8.8 2.7 0.6
Since 2023Away 4.69 1.25 48.0 3 4 1 8.8 1.3 2.1
2025Home 0 0 0 0 0 0 0 0 0
2025Away 0.00 0.50 2.0 0 0 0 4.5 0.0 0.0
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
More Splits View More Split Stats
Stat Review
How does Garrett Whitlock 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
0.00
 
K/9
4.5
 
BB/9
0.0
 
HR/9
0.0
 
Fastball
95.7 mph
 
ERA
0.00
 
WHIP
0.50
 
BABIP
.177
 
GB/FB
0.25
 
Left On Base
100.0%
 
Exit Velocity
72.4 mph
 
Barrels/BBE
0.0%
 
Spin Rate
2263 rpm
 
Balls Hit 95+ MPH
0.0%
 
Swinging Strike
8.7%
 
Prospect Rankings History
Advanced Pitching Stats
Loading Advanced Pitching Stats...
Defensive Stats
Loading MLB Defensive Stats...
Stats Vs Today's Lineup
Want more matchup stats?
Loading Matchup Stats...
Our full team depth charts are reserved for RotoWire subscribers.
Subscribe Now
Recent RotoWire Articles Featuring Garrett Whitlock See More
AL FAAB Factor: Waiver Pickups of the Week
7 days ago
The American League waiver wire is packed with options as Opening Day approaches, and the return of Nolan Jones to the Cleveland Guardians should settle their murky right field situation.
2025 Closer Rankings 3.0
8 days ago
Mason Miller makes a big jump in Ryan Rufe's updated closer rankings.
Spring Training Job Battles: American League Update
10 days ago
Several job battles have been settled around the American League, including the Royals' fifth starter job, which appears to have been won by Kris Bubic.
Mound Musings: A Look at Pitching in the AL East
10 days ago
Brad Johnson completes his pitching staff wrap up with the New York Yankees, who could be one of the best staffs this season with the addition of Max Fried.
AL FAAB Factor: Waiver Pickups of the Week
14 days ago
The first look of the season at the free-agent pool in the American League features a number of prospects in line to win Opening Day jobs, including young Texas Rangers pitcher Kumar Rocker.
Past Fantasy Outlooks
2024
2023
2022
2021
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.
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
Spring debut set
PBoston Red Sox
March 7, 2025
Whitlock will make his spring debut Friday against the Marlins, Chris Cotillo of MassLive.com reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Throws after planned downtime
PBoston Red Sox
February 24, 2025
Whitlock threw a 25-pitch bullpen session Friday following a week of downtime, Jen McCaffrey of The Athletic reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Averages 95 mph in live BP
PBoston Red Sox
February 12, 2025
Whitlock averaged 95 mph during a live batting practice session Tuesday, Gabrielle Starr of the Boston Herald reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Possible closer candidate
PBoston Red Sox
February 11, 2025
Red Sox manager Alex Cora mentioned Whitlock as a closer candidate Tuesday along with Liam Hendriks and Aroldis Chapman, Christopher Smith of MassLive.com reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Facing hitters Tuesday
PBoston Red Sox
Elbow
February 10, 2025
Whitlock (elbow) will face hitters Tuesday, Pete Abraham of the Boston Globe reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
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.
See All MLB Rumors