2025 Stats
W-L
0-1
ERA
3.86
WHIP
1.37
K
9
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
Winckowski was in competition for a rotation spot during spring training last year before opening the season in the bullpen. He ended up starting six games for Boston and six more for Triple-A Worcester but was mostly a reliever. As in years past, Winckowski exhibited a penchant for inducing groundballs in 2024 (52.4 percent), heavily relying on his sinker. Unfortunately, he was stung by the long ball at times and finished with a 4.14 ERA (4.48 FIP) over 40 appearances and 76 innings. It was disappointing after an encouraging 2023 when he pitched to a 2.88 ERA in 60 outings (one start). The Red Sox believe he can thrive as a starter, but there shouldn't be an opportunity in the majors right away. He's been effective in the minors, and there will be temptation to have him in the WooSox's rotation, where he'll be positioned as a depth starter for Boston. The front office wants to avoid yanking him around as it did in 2024, but a need for a multi-inning arm could develop at some point. Read Past Outlooks
Sent down to minors
The Red Sox optioned Winckowski to Triple-A Worcester on Thursday.
ANALYSIS
Winckowski was needed for three innings of relief in Wednesday's loss to the Mariners, so he's being replaced by a fresh arm. Luis Guerrero will absorb Winckowski's spot on the roster and in the bullpen.
Winckowski was needed for three innings of relief in Wednesday's loss to the Mariners, so he's being replaced by a fresh arm. Luis Guerrero will absorb Winckowski's spot on the roster and in the bullpen.
Pitching Stats
Loading Pitching Stats...
2025
2024
2023
2022
Minor League Game Log
Calculate Stats Over Time
Just click on any two dates.
Loading Minor League Pitching Game Log...
Pitching Appearances Breakdown
Average Pitch Count
35
Last 10 Games
35
Last 5 Games
37
How many pitches does Josh Winckowski 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+
What part of the game does Josh Winckowski generally pitch?
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
Even Split
2025
-48%
BAA vs RHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .268 | 74 | 27 | 80 | 7 |
| Since 2023vs Right | .269 | 77 | 35 | 101 | 12 |
| 2025vs Left | .353 | 4 | 2 | 6 | 0 |
| 2025vs Right | .185 | 5 | 3 | 5 | 0 |
| 2024vs Left | .285 | 32 | 14 | 41 | 6 |
| 2024vs Right | .260 | 28 | 12 | 40 | 4 |
| 2023vs Left | .239 | 38 | 11 | 33 | 1 |
| 2023vs Right | .287 | 44 | 20 | 56 | 8 |
Home/Away Pitching Splits
Since 2023
-16%
ERA on Road
2025
-22%
ERA at Home
| ERA | WHIP | IP | K/9 | BB/9 | |
|---|---|---|---|---|---|
| Since 2023Home | 3.77 | 1.35 | 98.0 | 6.8 | 2.9 |
| Since 2023Away | 3.16 | 1.50 | 74.0 | 9.4 | 3.6 |
| 2025Home | 3.52 | 1.30 | 7.2 | 5.9 | 3.5 |
| 2025Away | 4.50 | 1.50 | 4.0 | 9.0 | 4.5 |
| 2024Home | 4.34 | 1.36 | 45.2 | 6.1 | 2.8 |
| 2024Away | 3.86 | 1.48 | 30.1 | 8.6 | 3.6 |
| 2023Home | 3.22 | 1.34 | 44.2 | 7.7 | 3.0 |
| 2023Away | 2.50 | 1.51 | 39.2 | 10.0 | 3.6 |
Minor League Left/Right Pitching Splits (AAA)
Since 2023
-26%
BAA vs LHP
2025
-17%
BAA vs LHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .223 | 20 | 5 | 21 | 0 |
| Since 2023vs Right | .301 | 23 | 3 | 31 | 4 |
| 2025vs Left | .250 | 2 | 2 | 6 | 0 |
| 2025vs Right | .302 | 12 | 0 | 13 | 3 |
| 2024vs Left | .214 | 18 | 3 | 15 | 0 |
| 2024vs Right | .300 | 11 | 3 | 18 | 1 |
| 2023vs Left | 0 | 0 | 0 | 0 | 0 |
| 2023vs Right | 0 | 0 | 0 | 0 | 0 |
Stat Review
How does Josh Winckowski 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.
* 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
1.80K/9
6.9BB/9
3.9HR/9
0.0Fastball
94.8 mphERA
3.86WHIP
1.37BABIP
.315GB/FB
2.86Left On Base
56.3%Exit Velocity
81.7 mphBarrels/BBE
6.1%Spin Rate
2136 rpmBalls Hit 95+ MPH
28.8%Swinging Strike
12.1%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 Josh Winckowski See More
Todd Zola tries to remove volume from the equation when determining the value of pitchers, and finds that the market may have over-corrected on Logan Webb.
Which relievers will be on the dealt over the course of the next week, and what are their most likely landing spots?
Philadelphia Phillies ace Zack Wheeler has been one of the top pitchers in baseball, and Todd Zola has him at the top of the final Weekly Pitcher Rankings before the All-Star break.
Erik Siegrist checks out the free-agent pool in the American League and notes that Heston Kjerstad is only one of the rookie sluggers likely to draw significant bids this week.
You can save some salary on Sunday's FanDuel MLB slate by going with a Royals stack at home against the Guardians.
Past Fantasy Outlooks
2024
2023
Winckowski had a nice 2023 season out of Boston's bullpen, posting a 2.88 ERA over 84.1 innings with four wins, three saves and 18 holds across 60 appearances. The 25-year-old added velocity (+2.2 mph) on his sinker that he threw 96.3 mph on average, which ultimately induced more whiffs. He also threw more cutters (+24.5% usage over 2022) and his strikeout rate took a big jump, from 13.9% in 2022 to 22.3% last season. This mark was still below league average, but the right-hander maintained a high ground ball rate (51.2%) despite issuing free passes at an 8.4% clip. Red Sox manager Alex Cora recently suggested Winckowski could get a look in the rotation in 2024, which syncs up with how he was used throughout the minors and his rookie season. However, his numbers are much worse as a starter (5.66 ERA, 1.55 WHIP over 68.1 innings), which could warrant a relief role after all.
More Fantasy News
Brought up from minors
The Red Sox recalled Winckowski from Triple-A Worcester on Tuesday, Mac Cerullo of the Boston Herald reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Fails to make Opening Day roster
The Red Sox optioned Winckowski to Triple-A Worcester on Wednesday, Chris Cotillo of MassLive.com reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Earns first save
Winckowski threw a perfect inning and earned a save against the White Sox on Friday.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Back in big leagues
The Red Sox recalled Winckowski from Triple-A Worcester on Tuesday, Chris Cotillo of MassLive.com reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Bound for Triple-A
The Red Sox optioned Winckowski to Triple-A Worcester on Monday, Jen McCaffrey of The Athletic reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Latest Fantasy Rumors
Chance for spot start?
The Red Sox placed Cooper Criswell on the COVID-19 list Friday, and Winckowski could be in the mix to fill the open rotation spot Saturday against the Astros.
ANALYSIS
Winckowski likely wouldn't be able to work as a traditional starter given he threw 39 pitches over 2.2 innings Wednesday in Kansas City, but he should still be able to cover a couple frames if called upon Saturday. The right-hander has started in five of his 24 appearances this season and has a combined 3.44 ERA, 1.41 WHIP and 37:20 K:BB across 49.2 innings.
Winckowski likely wouldn't be able to work as a traditional starter given he threw 39 pitches over 2.2 innings Wednesday in Kansas City, but he should still be able to cover a couple frames if called upon Saturday. The right-hander has started in five of his 24 appearances this season and has a combined 3.44 ERA, 1.41 WHIP and 37:20 K:BB across 49.2 innings.