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Kyle Harrison Fantasy Stats

Background banner image for player info Kyle Harrison

Starting Pitcher #38

Healthy
Height / Weight 6'2"  /  209 lbs.
Date of Birth (Age) Aug 12, 2001 (24)
Experience 3 seasons
College None

2025 Rankings

Preseason SP96
Final SP208

Season Stats

SEASON TEAM POS GP FPTS/G GS W L SV IP ERA WHIP H R ER HR BB SO AVG
2023SFSP713.4711034.24.151.15429191681135.215
2024SFSP2413.124770124.14.561.34312565631842118.264
2025BOSSP128.2611035.24.041.37435161641438.248
Career 43 11.7 37 9 9 0 194.2 4.39 1.315 189 100 95 30 67 191 .252

Game Log

TEAM OPP POS FPTS GS W L SV IP H R ER HR BB SO AVG WHIP
May 13, 2025 SFARIRP-0.300001.0111100.2501.000
May 20, 2025 SFKCRP4.400001.1111002.2000.750
May 24, 2025 SFWSHSP10.010104.0522104.2941.250
May 30, 2025 SFMIASP22.911005.0100035.0670.800
Jun 4, 2025 SFSDSP-0.210004.1955013.4092.308
Jun 10, 2025 SFCOLSP13.710005.0433226.2111.200
Jun 15, 2025 SFLADRP0.000000.0000000.0000.000
Sep 10, 2025 BOSATHRP8.300003.0300002.2501.000
Sep 20, 2025 BOSTBSP17.910006.0411025.1821.000
Sep 26, 2025 BOSDETSP6.810003.0733036.4383.333
Last 10 83.3 10 1 1 0 32.2 35 16 16 4 11 33 .265 1.408

Kyle Harrison News

Kyle Harrison  • SP  •  Red Sox

Kyle Harrison Could Pitch for Red Sox on Wednesday

Boston Red Sox left-hander Kyle Harrison is traveling from Syracuse, New York, (where Triple-A Worcester is) to Sacramento to be an option for the big-league team on Wednesday in the series finale against the Athletics, according to Tommy Cassell. Boston has yet to announce a starter for Wednesday's contest, but it appears that both Payton Tolle and Harrison could be used in some capacity. The 24-year-old Harrison was expected to join the Red Sox recently, cut a minor ankle injury got in the way of those plans. He threw an inning with the WooSox on Sunday and could be used in bulk relief on Wednesday, although he wouldn't be recommended as a fantasy streamer. Harrison came over to Boston in the trade that sent Rafael Devers to San Francisco in the first half of the season, but he has yet to pitch with the BoSox.
Sep 9   
Kyle Harrison  • SP  •  Red Sox

Kyle Harrison Dealing with an Ankle Injury

Boston Red Sox starting pitcher Kyle Harrison (ankle) was not able to make his Red Sox debut on Wednesday as was initially expected due to a left ankle injury. According to Triple-A Worcester Red Sox manager Chad Tracy, Harrison is feeling better but is currently without a timeline to return to the mound. The team will see how he feels on Thursday and determine a course of action at that point. The Red Sox acquired Harrison as one of the key pieces in the Rafael Devers trade, and since joining the Woo Sox, he has gone 4-2 with a 3.65 ERA and 48 strikeouts in 49 1/3 innings. He allowed two runs or fewer in seven of his last eight starts, going 3-0 with a 2.23 ERA, but he'll need to wait a little longer before making his first appearance in the majors for Boston. When he does arrive, Harrison's recent success and strikeout upside make him an important player to watch for AL-only leagues, DFS options, or even as a potential mixed-league streaming play, depending on the matchup.
Sep 4   
Kyle Harrison  • SP  •  Red Sox

Kyle Harrison Promoted From Triple-A Tuesday

The Boston Red Sox promoted left-handed pitcher Kyle Harrison from Triple-A Worcester on Tuesday, per Worcester T&G Sports' Tommy Cassell. Harrison joined the Red Sox earlier in the season in a trade for Rafael Devers and has been at Triple-A since. The 24-year-old has had mixed results, going 4-2 with a 3.65 ERA, a 1.56 WHIP, and a 21.5% strikeout rate in 49 1/3 innings pitched. The Red Sox recently released Walker Buehler but called up pitching prospect Peyton Tolle, so it remains to be seen what Harrison's role will be. Brennan Bernadino has been announced as the team's starter on Wednesday against the Guardians, but he has pitched at most 2 1/3 innings in his outings this season, so it is possible Harrison could pitch in bulk relief. At this point in the season, fantasy managers may want to be conservative with Harrison, given his unknown role and his results at Triple-A.
Sep 3   
Kyle Harrison  • SP  •  Red Sox

Kyle Harrison Could Start Wednesday for the Red Sox

According to Chris Hatfield of SoxProspects.com, Boston Red Sox left-hander Kyle Harrison was initially set to start Sunday in Triple-A, and now he is not. With the report, the Red Sox plan to keep rookie Payton Tolle on at least five days of rest and would need one spot start each of the next two weeks. This might mean Harrison gets a start against the Cleveland Guardians on Wednesday. Harrison was a part of the return the Red Sox got that sent Rafael Devers to the San Francisco Giants, and he has flashed some upside in the past. Harrison owns a 3.65 ERA and 1.57 WHIP in 49 1/3 innings with Worcester this season. While in the big leagues, he has a 4.56 ERA and 1.27 WHIP in 23 2/3 innings pitched. Harrison could be a streamer option in deeper leagues for teams that are looking for starting pitching help, as Harrison has flashed signs of success in the past with 35 MLB starts under his belt and a 4.48 ERA.
Sep 1   
Kyle Harrison  • SP  •  Red Sox  |  Richard Fitts  • SP  •  Red Sox

Richard Fitts, Kyle Harrison are Candidates to Start on Monday

Boston Red Sox starting pitchers Richard Fitts and Kyle Harrison are both candidates to take the mound for Monday's game against the Baltimore Orioles. The Red Sox are looking for a pitcher to fill the void in the rotation with Walker Buehler heading to the bullpen. It would make the most sense for the Red Sox to start Fitts, who is already on the roster. They recalled him as an extra bullpen arm for their series against the New York Yankees. Fitts holds a 4.83 ERA, 1.31 WHIP, and a 34/13 K/BB across 10 starts this season. Otherwise, Harrison would need to be recalled from Triple-A to make his team debut. He was traded to Boston in the deal that sent Rafael Devers to the San Francisco Giants earlier this summer. Both pitchers would offer low-end streaming appeal for fantasy managers.
Aug 24   
Kyle Harrison  • SP  •  Red Sox

Kyle Harrison Delivers Quality Start on Tuesday

Boston Red Sox left-handed pitcher Kyle Harrison secured a win in his best outing since being dealt to the Red Sox, allowing two runs (one earned) on three hits and one walk while striking out five against Triple-A St. Paul. He generated a whiff on all four pitches in his arsenal, totaling 11 on 43 swings. He's now allowed just one earned run over his last 9.2 innings to go with 10 strikeouts. His season-long numbers at Triple-A, however, are still a bit inflated with a 4.07 ERA and 1.44 WHIP in 48.2 innings. There's a good chance that we see Harrison up in Boston here relatively shortly, although his role is still up in the air. The 23-year-old lefty is worth putting on the watch list with his strong pedigree and chance of Boston unlocking him.
Jul 23   
Kyle Harrison  • SP  •  Red Sox

Kyle Harrison Allows Four Runs in Win

Boston Red Sox left-handed pitcher Kyle Harrison allowed four runs on seven hits and two walks with four strikeouts across five innings as he picked up the win against Triple-A Rochester. Harrison had mixed results in this outing, as he served up two homers in the bottom of the first inning for three runs. He was able to throw four innings of one-run ball after, as he heavily relied on his fastball again. He racked up seven whiffs on 24 swings on the pitch, and only two whiffs on 19 swings on his three secondary offerings. Since joining Triple-A Worcester, the 23-year-old has made three starts and has a 7.62 ERA, 1.92 WHIP, and a 10:5 K:BB in 13 innings.
Jul 9   
Kyle Harrison  • SP  •  Red Sox

Kyle Harrison Gives Up Three Runs in Four Innings on Wednesday

Boston Red Sox left-handed pitcher Kyle Harrison took the loss on Wednesday, as he allowed three runs on five hits and two walks against Triple-A Syracuse. He struck out two. Harrison was a bit shaky again in his second start with Worcester as he allowed two homers. The 23-year-old again relied on his fastball in this outing, throwing it 47 percent of the time. However, it wasn't as effective as usual, inducing just two whiffs on 19 swings. His secondary offerings picked up some of the slack, though, with 8 whiffs on 18 swings total. Harrison has been looking for answers outside of his fastball, so while the surface numbers for this outing are not ideal, that is a bright spot to point to. Harrison will likely be back in the majors to make his Red Sox debut sometime this summer.
Jul 3   
Kyle Harrison  • SP  •  Red Sox

Kyle Harrison Allows Four Runs in Four Innings

Boston Red Sox starting pitcher Kyle Harrison allowed four runs on eight hits and one walk while striking out four in four innings against Triple-A Scranton Wilkes-Barre. Harrison took the loss in his Triple-A Worcester debut and first outing since June 10. He relied heavily on his fastball throwing it nearly 60 percent of the time. He picked up 12 whiffs on 38 swings overall and was able to work up to 76 pitches. Harrison was looking improved this year in San Francisco working in between the rotation and bullpen, with a career best 25 percent strikeout rate. It remains to be seen how Boston will utilize him with the major league club.
Jun 27   
Kyle Harrison  • SP  •  Red Sox

Kyle Harrison Optioned to Triple-A Worcester

Per the team, the Boston Red Sox have optioned newly acquired pitcher Kyle Harrison to Triple-A Worcester. Boston stunned the baseball world over the weekend when it flipped Rafael Devers for a package of players. Harrison was initially scheduled to toe the rubber on Sunday for San Francisco in their series finale with the Los Angeles Dodgers. However, he'll now presumably work out of Worcester's rotation. The 23-year-old operated from the bullpen and as a starter this season for the Giants, compiling a 1-1 record with a 4.56 ERA, 1.27 WHIP, and 25:9 K:BB ratio in eight appearances (four starts, 23 2/3 innings). He will likely get a chance to stick with the big-league squad at some point this season, though when that is remains unclear.
Jun 16   
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