Kyle Harrison

From BR Bullpen

Kyle Christopher Harrison

BR page

Biographical Information[edit]

Pitcher Kyle Harrison was selected by the San Francisco Giants in the 3rd round of the 2020 amateur draft, from a high school in Concord, CA. While in his school, he was a member of the USA junior national team that won silver at the 2019 U-18 Baseball World Cup held in Busan, South Korea. He was 1-0 with no runs in 10 innings, fanning 12. He tied for 10th in the event in K and tied Chien Yu for the best ERA. Yasunobu Okugawa beat him out for All-Star SP. He was offered a $2.5 million signing bonus to drop a strong commitment to attend UCLA.

He began his professional career in 2021, since the minor leagues were shut down in 2020 due to the Coronavirus pandemic. He played that season with the San Jose Giants of the Low-A West, going 4-3, 3.19 in 23 starts and logging 98 2/3 innings. He struck out a dominant 157 batters during those innings and was named an organizational All-Star after the season. In 2022, he started the year with the Eugene Emeralds of the Northwest League, going 0-1, 1.55 through 7 starts, with 59 strikeouts in 29 innings. He was then promoted to the AA Richmond Flying Squirrels and shortly thereafter was named to the National League squad for the 2022 Futures Game. However, things did not go well for him when he took the mound at Dodger Stadium on July 16th: in the 3rd inning, he gave up a pair of two-run homers, to Jasson Dominguez and Matt Wallner, failed to complete the inning and was charged with the 6-4 loss. He was again named to play in the 2023 Futures Game. He went 1-3, 4.79 in 21 starts, all but 1 in AAA, the team kept him on a tight leash. He pitched just 67 2/3 innings - hence the single win - but struck out 109 batters.

Kyle made his debut with the Giants in August of 2023, going 1-1, 4.15 in 7 starts and pitching 34 2/3 innings. In 2024 he spent most of the season in the Giants' starting rotation, making 24 starts and logging 124 1/3 innings. He went 7-7, 4.56 and struck out 118 batters. He had two separate stints on the injured list, one due to an ankle sprain, and another which ended his season in early September because of left shoulder impingement. He started the 2025 season in the minors with the Sacramento River Cats, going 1-0, 4.50 in 6 starts and 26 innings, before being called up to San Francisco on May 5th. 4 of his 8 appearances with the Giants were starts and he was at 1-1, 4.56 when on June 15th he was included in a blockbuster trade with the Boston Red Sox. He joined fellow pitcher Jordan Hicks and prospects Jose Bello and James Tibbs in shipping out to Boston in return for DH Rafael Devers. He was scheduled to start against the Los Angeles Dodgers on the day of the trade but was pulled from the assignment at the last minute and replaced by Sean Hjelle. He was sent down to the AAA Worcester Red Sox after his acquisition, where he was 4-2, 3.75 in 12 starts covering 50 1/3 innings. He was called up to Boston on September 10th and made 3 appearances, including 2 starts, with no decisions and a 3.00 ERA in 12 innings.

On February 9, 2026, he was traded to the Milwaukee Brewers as part of a six-player trade, joining P Shane Drohan and IF David Hamilton in heading to Milwaukee, while the Red Sox received IFs Caleb Durbin, Andruw Monasterio and Anthony Seigler as well as a Competitive Balance Round B pick in the 2026 amateur draft. The trade meant that the two highest-profile names the Sox had acquired in return for Devers were already gone from the organization, as Jordan Hicks had also been traded away a week before him. It would be up to the prospects to justify that trade. In Harrison's case, he was inserted in the Brewers' starting rotation and began to pitch like the top prospect he had once been. On May 20th, he pitched 7 scoreless innings against the Chicago Cubs at Wrigley Field, striking out 11 while giving up just 2 hits and 1 walk. The 5-0 win completed a three-game sweep by Milwaukee, and it was the sixth consecutive start by Harrison that had resulted in a Brewers win. His record after 9 starts was a sparkling 5-1, 1.77. On June 2nd, he defeated his original team, the Giants, with another strong performance, 1 run allowed in 5 1/3 innings while racking up 12 strikeouts in a 7-3 win, to improve his record to 7-1 and lower his ERA to 1.57.

He is the grandson of Skip Guinn. His brother Bear Harrison played at St. Mary's College of California then transferred to Texas A&M where he is a junior catcher in 2026.

Further Reading[edit]

  • Adam McCalvy and Maria Guardado: "Harrison matches career high with 12 K's against the team that discovered him", mlb.com, June 3, 2026. [1]
  • Alex Pavlovic: "Why Harrison is Giants' best pitching prospect since MadBum", NBC Sports.com, May 31, 2022. [2]
  • Zach Sweet: "Harrison's utter dominance puts bow on Brewers' sweep at Wrigley", mlb.com, May 20, 2026. [3]

Related Sites[edit]

Retrieved from "https://www.baseball-reference.com/bpv/index.php?title=Kyle_Harrison&oldid=1502239"