2025 Stats
W-L
1-1
ERA
4.56
WHIP
1.27
K
25
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
During his days in the minors when he became a top prospect, Harrison posted an ugly 12.3 percent walk rate but also a whopping 37.4 percent strikeout rate. Both of those numbers have come way down in the majors, with the lefty issuing walks at just a 7.8 percent clip but also fanning batters at a pedestrian 22.5 percent rate. Harrison's velocity also dipped in 2024 across the board and was down even more from August on when he posted a 7.76 ERA over six starts before he ended the season on the injured list with shoulder inflammation. Because it gets so much horizontal movement after he dropped his arm slot, Harrison's four-seamer still played well in spite of the lesser velocity, with the pitch earning a plus-seven Run Value. That said, the profile on the whole doesn't look as exciting as it did a year ago. Read Past Outlooks

Opening at Triple-A after trade
The Red Sox optioned Harrison to Triple-A Worcester after acquiring him from the Giants on Sunday.
ANALYSIS
Along with Harrison, the Red Sox brought in right-handers Jordan Hicks (toe) and Jose Bello and outfielder James Tibbs in a deal that sent designated hitter Rafael Devers to San Francisco. Though Harrison will likely be an option to make starts for the Red Sox later this season, the big club didn't have a spot available for him in the rotation, so he'll begin his tenure in the organization at Triple-A. The left-hander turned in a 4.48 ERA and 1.30 WHIP with 178 strikeouts over 182.2 innings in 39 appearances (35 starts) during parts of three seasons in the majors with the Giants.
Along with Harrison, the Red Sox brought in right-handers Jordan Hicks (toe) and Jose Bello and outfielder James Tibbs in a deal that sent designated hitter Rafael Devers to San Francisco. Though Harrison will likely be an option to make starts for the Red Sox later this season, the big club didn't have a spot available for him in the rotation, so he'll begin his tenure in the organization at Triple-A. The left-hander turned in a 4.48 ERA and 1.30 WHIP with 178 strikeouts over 182.2 innings in 39 appearances (35 starts) during parts of three seasons in the majors with the Giants.
Pitching Stats
Loading Pitching Stats...
2025
2024
2023
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
49
Last 10 Games
49
Last 5 Games
65
How many pitches does Kyle Harrison 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 Kyle Harrison 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
-12%
BAA vs RHP
2025
-16%
BAA vs RHP
BAA | K | BB | H | HR | |
---|---|---|---|---|---|
Since 2023vs Left | .276 | 38 | 11 | 45 | 9 |
Since 2023vs Right | .243 | 140 | 51 | 130 | 21 |
2025vs Left | .258 | 7 | 0 | 8 | 3 |
2025vs Right | .217 | 18 | 9 | 13 | 1 |
2024vs Left | .260 | 29 | 6 | 25 | 3 |
2024vs Right | .263 | 89 | 36 | 100 | 15 |
2023vs Left | .333 | 2 | 5 | 12 | 3 |
2023vs Right | .179 | 33 | 6 | 17 | 5 |
Home/Away Pitching Splits
Since 2023
-12%
ERA at Home
2025
-72%
ERA on Road
ERA | WHIP | IP | K/9 | BB/9 | |
---|---|---|---|---|---|
Since 2023Home | 4.20 | 1.28 | 90.0 | 9.3 | 2.5 |
Since 2023Away | 4.76 | 1.32 | 92.2 | 8.3 | 3.6 |
2025Home | 9.45 | 1.80 | 6.2 | 6.8 | 1.4 |
2025Away | 2.65 | 1.06 | 17.0 | 10.6 | 4.2 |
2024Home | 4.14 | 1.29 | 63.0 | 9.3 | 2.4 |
2024Away | 4.99 | 1.40 | 61.1 | 7.8 | 3.7 |
2023Home | 2.66 | 1.08 | 20.1 | 10.2 | 3.1 |
2023Away | 6.28 | 1.26 | 14.1 | 7.5 | 2.5 |
Minor League Left/Right Pitching Splits (AAA)
Since 2023
-21%
BAA vs LHP
2025
-6%
BAA vs LHP
BAA | K | BB | H | HR | |
---|---|---|---|---|---|
Since 2023vs Left | .191 | 47 | 10 | 22 | 0 |
Since 2023vs Right | .243 | 96 | 46 | 56 | 12 |
2025vs Left | .242 | 12 | 0 | 8 | 0 |
2025vs Right | .257 | 26 | 8 | 18 | 2 |
2024vs Left | 0 | 0 | 0 | 0 | 0 |
2024vs Right | 0 | 0 | 0 | 0 | 0 |
2023vs Left | .171 | 35 | 10 | 14 | 0 |
2023vs Right | .238 | 70 | 38 | 38 | 10 |
Stat Review
How does Kyle Harrison 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.
* 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
2.78K/9
9.5BB/9
3.4HR/9
1.5Fastball
95.1 mphERA
4.56WHIP
1.27BABIP
.289GB/FB
1.05Left On Base
73.8%Exit Velocity
83.8 mphBarrels/BBE
6.3%Spin Rate
2247 rpmBalls Hit 95+ MPH
25.8%Swinging Strike
13.5%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 Kyle Harrison See More

Its a full slate of MLB today and Betting Expert Danield Dobish shares his best plays, including props on tonight's Giants-Dodgers NL West showdown

Ryan Pohle takes a deeper look into team stacks and pitchers for Tuesday's MLB slate, including Washington's MacKenzie Gore in a matchup against the Mets.

Tuesday's top MLB DFS options on FanDuel include Junior Caminero as the Tampa Bay Rays clash with the Boston Red Sox at Fenway Park.
Past Fantasy Outlooks
2024
2023
2022
Harrison walked three or more batters in 11 of his 20 starts at Triple-A, where automated balls and strikes may have increased walk rates relative to when humans are calling the game. He walked at least one batter but no more than two batters in all seven of his big-league starts, which lends credence to the theory that he may have less of a control issue when the human element is involved. Harrison always missed bats at an elite clip in the minors, with strikeout rates north of 35 percent at every stop. However his propensity to walk batters has held him back at times. The gap between his walk rate at Triple-A (16.3 percent) and the big leagues (7.5 percent) is essentially the difference between a pitcher destined for relief and a pitcher who comfortably projects as a starter. The 6-foot-2 southpaw was the third-youngest pitcher to make five-plus starts in the majors (only Eury Perez and AJ Smith-Shawver were younger), so it's fair to expect further skill development in the coming years for Harrison, who won't turn 23 until August. He is a flyball pitcher (26.8 GB% in the big leagues), but he has a good home park for that approach, as Oracle Park has the third-lowest home run park factor, per Baseball Savant's 3-year rolling average. He should make the rotation out of spring training, but a hamstring injury limited him to 102.1 innings, so the Giants may cap him at around 150 innings in the regular season.
More Fantasy News

Traded to Boston
The Red Sox acquired Harrison, right-hander Jordan Hicks (toe), right-hander Jose Bello and outfielder James Tibbs from the Giants on Sunday in exchange for Rafael Devers, Robert Murray of FanSided.com reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.

Logs five innings in no-decision
Harrison did not factor into the decision Tuesday, allowing three runs on four hits and two walks over five innings against the Rockies. He struck out six.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.

Cleared for next start
Harrison (elbow) is listed as the Giants' probable starter for Tuesday's game against the Rockies in Colorado.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.

Nursing bruised elbow
Harrison was diagnosed with a left elbow contusion after getting hit by a comebacker during Wednesday's game against San Diego, Alex Pavlovic of NBC Sports Bay Area reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.

Works five scoreless in win
Harrison (1-1) got the win after throwing five innings of shutout ball in Friday's 2-0 win over the Marlins. He allowed one hit, walked three and struck out five.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Latest Fantasy Rumors

In mix for rotation spot
Harrison is a candidate to enter San Francisco's rotation after Justin Verlander was placed on the injured list due to a pectoral injury Thursday, reports Alex Pavlovic of NBC Sports Bay Area.
ANALYSIS
Harrison was called up in early May after missing out on the Opening Day rotation, and he's pitched well in four apperarances with a 3.38 ERA, 0.94 WHIP and 7:3 K:BB over 5.1 innings. The left-hander might be limited to about 50 pitches if called upon to start Saturday in Washington. Harrison had a 4.56 ERA over 24 starts in the majors last season, which was a decent showing for his first full season in the big leagues.
Harrison was called up in early May after missing out on the Opening Day rotation, and he's pitched well in four apperarances with a 3.38 ERA, 0.94 WHIP and 7:3 K:BB over 5.1 innings. The left-hander might be limited to about 50 pitches if called upon to start Saturday in Washington. Harrison had a 4.56 ERA over 24 starts in the majors last season, which was a decent showing for his first full season in the big leagues.