2018 season After the
2017 season, the Yankees decided not to retain
Joe Girardi as their
manager; they hired Boone to succeed him on December 4, 2017. The Yankees started the
2018 season with a 6–1 win against the
Toronto Blue Jays on March 29, 2018. On September 2, 2018, Boone was suspended for one game for making illegal contact with an umpire. He finished his first season with a 100–62 record, good for second in the American League East, giving Boone his first postseason win as a manager. The Boston Red Sox eliminated the New York Yankees three–games–to–one in the
American League Division Series en route to a
World Series victory.
2019 season The Yankees started the
2019 season with a 7–2 win against the
Baltimore Orioles on March 28, 2019. On September 19, after winning against the
Los Angeles Angels 9–1, the Yankees clinched the American League East, becoming AL East Division Champions for the first time since 2012 and also earning their 100th win. Boone became the first manager in MLB history to have 100 or more wins in each of his first two seasons. The Yankees went on to lose to the Houston Astros in the American League Championship Series. Following the 2019 season, Boone was named a finalist for American League
Manager of the Year award. He finished runner-up to
Minnesota Twins manager,
Rocco Baldelli.
2020 season Due to the
COVID-19 pandemic, the Yankees and the other 29 Major League Baseball teams only played a 60-game regular season. The Yankees started off the shortened season with a hot 16–6 start, but then lost 15 of their next 20 games, evening their record at 21–21. The Yankees then won 10 straight to finish the season second in their division with a 33–27 record, seven games behind the division-champion
Tampa Bay Rays, who they lost eight of 10 games to in the regular season, in the AL East, but good enough for the fifth seed in the American League due to MLB's postseason expansion for the season. The Yankees swept the
Cleveland Indians in a best-of-three wild card series to advance to the ALDS against the
Tampa Bay Rays, but their struggles against the Rays continued, as they were eliminated in five games.
2021 season During the 2021 season, the Yankees had what was called one of the "streakiest [teams] in recent memory. Through July 4, the team struggled to a 41–41 record with half of the season left to play, then went on a 51–29 run to end the season at 92–70. Between August 14 and 28, the Yankees won 13 consecutive games, tied for fifth-longest in franchise history. Following the winning streak, the team stumbled, going 3–12 between August 28 and September 12, and finished tied for second in the American League East behind the Tampa Bay Rays, but lost the
wild card game to the Boston Red Sox 6–2. Following the season, Boone signed a three-year contract with the Yankees with a club option for 2025.
2022 season In 2022, Boone was ejected from nine games. He was ejected four times more often than any other MLB manager. The Yankees were 64–28 in the first half of the season by the All-Star Game and potentially headed to 100 wins. They proceeded to win 35 of their next 70 games to finish with a 99–63 record and an AL East title. They earned home-field advantage in Games 1, 2, and 5 of the ALDS. They beat the
Cleveland Guardians in five games, but got swept by the Houston Astros in the ALCS, marking Boone's fifth-straight playoff exit.
2023 season MLB suspended Boone for one game on May 26, 2023, for his conduct towards umpires after his fourth ejection of the season, and second in four days, the prior day. As of June 9, Boone has the third-highest ejection rate in MLB history among managers, behind only
Paul Richards and
Frankie Frisch, and ahead of
Earl Weaver,
Bobby Cox, and
Ron Gardenhire, managers who were all known for their proclivity for getting ejected. On September 24, 2023, the Yankees were eliminated from playoff contention for the first time under Boone's management. The team finished the season 82–80.
2024 season The Yankees finished the season first in the American League East at 94–68, beat the
Kansas City Royals in four games in the
ALDS and
Cleveland Guardians in five games in the
ALCS for their first AL Pennant and World Series appearance since 2009, where they subsequently lost to the
Los Angeles Dodgers in five games. On November 8, 2024, the Yankees exercised the 2025 option clause for Boone.
2025 season Before the 2025 regular season began, Boone and the Yankees agreed to a two-year contract extension through 2027. The Yankees finished second in the AL East with a 94–68 record, narrowly behind the Toronto Blue Jays, who held the tiebreaker. They advanced past the Boston Red Sox by winning the
Wild Card Series 2–1. They would go on to lose the
Division Series to the Toronto Blue Jays 3–1.
Managerial record ==Personal life==