From career breakthroughs to professional milestones, explore how Kenley Jansen made an impact.
Kenley Jansen is a professional baseball pitcher from Curaçao, currently playing for the Los Angeles Angels in MLB. He previously played for the Los Angeles Dodgers, Atlanta Braves, and Boston Red Sox. He is known as one of the top closers in baseball.
In 2015, Jansen broke Jay Howell's team records, set in 1991, of 13 games without a walk to start a season and 20 strikeouts without a walk to start a season.
On November 17, 2004, Jansen was signed as an undrafted free agent catcher by the Dodgers organization and was assigned to the Rookie Class Gulf Coast Dodgers.
In 2004, Jansen was signed by the Los Angeles Dodgers as an undrafted free agent.
In 2007, Jansen split his time between the Raptors and the Class-A Great Lakes Loons of the Midwest League, where he hit .207 in 73 games. He also played in Hawaii Winter Baseball.
In 2008, Jansen played with the Loons, hitting .227 with 9 home runs in 79 games, and was selected to the mid-season Midwest League All-Star game.
On November 19, 2009, Jansen was added to the Dodgers 40-man roster, marking a step forward in his professional baseball career.
In 2009, Jansen was the starting catcher for the Netherlands team in the World Baseball Classic. During the regular season, he played for the Inland Empire 66ers and the Albuquerque Isotopes.
In 2009, the Dodgers convinced Jansen to switch from catcher to pitching due to his offensive struggles. He made the conversion in the second half of the season, working with Charlie Hough.
On May 15, 2010, Jansen was promoted to the Double-A Chattanooga Lookouts, and he was later selected for the Southern League All-Star Game.
On July 23, 2010, Jansen was promoted to the Los Angeles Dodgers, marking a significant milestone in his career.
In 2010, Jansen appeared in 25 games for the Dodgers, recording a 1-0 record with a 0.67 ERA and four saves. He also scored his first run and got his first hit in the major leagues.
In 2010, Jansen made his Major League Baseball debut.
In 2011, Jansen became a key member of the Dodgers' bullpen, posting a 2-1 record with a 2.85 ERA and five saves. He also set a new Major League season record with 16+1⁄3 strikeouts per nine innings.
In May 2012, Jansen became the Dodgers' closer after Javy Guerra struggled in the role.
In 2012, Jansen began serving as the Dodgers' closer.
In 2013, Jansen pitched as the closer for the Dodgers, appearing in 75 games with a 4-3 record, a 1.88 ERA, and 28 saves. He pitched in the NLDS and NLCS.
In 2017, Jansen recorded his 36th strikeout of the season, setting an MLB season record for most strikeouts without giving up a walk. The previous record was held by Cardinals starting pitcher Adam Wainwright, who struck out 35 batters before giving up a walk in the 2013 season.
On February 11, 2014, Jansen avoided arbitration by signing a $4.3 million contract with the Dodgers. He was fully established as the Dodgers' closer in 2014.
On January 16, 2015, Jansen avoided arbitration again, signing a one-year $7.425 million contract with the Dodgers.
On January 15, 2016, Jansen signed a one-year, $10.65 million contract with the Dodgers, avoiding arbitration in his final year of eligibility.
On January 10, 2017, the Dodgers announced they had re-signed Jansen to a five-year, $80 million contract, securing his place with the team.
In 2017, Jansen finished all three games of the Dodgers NLDS sweep of the Diamondbacks, saving two. He allowed two runs in the World Series, including a solo homer by Marwin González, and picked up the loss in Game Five.
In 2017, Jansen led the National League in saves.
In 2017, Jansen was awarded the National League Reliever of the Year Award for the second straight year. He set a record for most strikeouts without a walk, reaching 51 before issuing his first walk of the season. He was also named to his second straight All-Star Game.
Jansen recorded two extended saves in a series against the Mets, with a 5-out save in the first game of the series and a 4-out save in the fourth game. This was his first five-out save since June 2018 in Pittsburgh.
In 2018, Jansen was chosen for his third straight All-Star Game after a strong performance in May, June, and July.
On April 7, 2019, Jansen recorded a four-out save against the Colorado Rockies at Coors Field in Denver, contributing to a Dodgers victory.
On June 15, 2019, Jansen debuted the intentional balk in a game against the Chicago Cubs. This strategy was designed to prevent runners on second base from stealing signs.
In 2019, Jansen became the 30th pitcher to reach 300 career saves, marking a significant milestone in his career.
In the 2019 NLDS, Jansen pitched to five batters and did not allow any of them to reach base, contributing to his team's performance.
In 2020, Kenley Jansen dealt with a COVID-19 infection affecting his conditioning, pitched 24.1 innings over 27 games with a 3-1 record, a 3.33 ERA, and 11 saves, leading the National League with 24 games finished. He secured a save in the Wild Card Series and pitched in the NLDS and NLCS. In Game 4 of the 2020 World Series, Jansen blew his fourth career World Series save, setting a new World Series record.
On August 25, 2021, Kenley Jansen recorded his 1,000th strikeout in MLB history against Austin Nola. He finished the 2021 season with 38 saves, a 2.22 ERA, and 86 strikeouts in 69 innings. In the National League Wild Card Game, he earned the win with a scoreless ninth inning. He also pitched in the 2021 NLDS and NLCS, recording a save in Game 3 of the NLCS.
On March 18, 2022, Kenley Jansen signed a one-year, $16 million contract with the Atlanta Braves.
On December 13, 2022, Kenley Jansen signed a two-year contract with the Boston Red Sox.
In 2022, after 11 years with the Dodgers, Jansen entered free agency and signed a one-year deal with the Atlanta Braves. He then signed with the Red Sox.
On May 10, 2023, Kenley Jansen became the seventh pitcher in MLB history to record 400 saves.
In 2023, Jansen became the 7th pitcher to reach a total of 400 career saves, further solidifying his place in baseball history.
In 2024, Kenley Jansen began the season as Boston's closer and on April 20, he earned his 425th career save, passing John Franco for fifth place on the all-time list. He finished the 2024 season with 27 saves, a 3.29 ERA, and 62 strikeouts in 54+2⁄3 innings.
On February 11, 2025, Kenley Jansen signed a one-year, $10 million contract with the Los Angeles Angels.
On April 8th, 2025, Jansen became a member of the 450 save club.
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