Full name is Kenley Geronimo Jansen...Married to Gianni...Has two daughters (Natalia and Key’Gia) and two sons (Kaden and Kyrian)...Plays piano and the bass guitar...Started a band called Icons Curaçaoa, which plays ritmo kombina music...Born in Willemstad, Curaçao and grew up rooting for the Atlanta Braves...The club later signed his brother, Ardley and fellow countryman Andruw Jones...Wears No. 74 because that is his house number in Curaçao...Kenley’s older brother, Ardley, played seven seasons in the Braves system (2000-06) as an outfielder, reaching as high as Double-A in 2004...Ardley also played two seasons for San Marino in the Italian Baseball League (2009-10)...As a child, played with Andrelton Simmons.
2023
Completed his 15th MLB season, his first with the Sox...Became the first Curaçao-born player to play for BOS...Was selected to represent the AL at the MLB All-Star Game, his fourth career All-Star selection (also 2016-18)...Earned the Good Guy Award from the Boston Baseball Writers...Posted a 3.63 ERA (18 ER/44.2 IP) in 51 games, converting 87.9% of his save opportunities (29-for-33)...Ranked sixth in the AL and 13th in MLB in saves...Did not allow a run in 39 of his 51 appearances, including 27 of his 33 save opportunities...Recorded his 400th career save on 5/10 at ATL, becoming the seventh pitcher to ever reach the mark...Joined the 400-save club at 35 years, 222 days old, the third-youngest to join the club behind Francisco Rodriguez (34 years, 138 days) and Craig Kimbrel (34 years, 363 days)...In 28 outings on the road, posted a 2.59 ERA (7 ER/24.1 IP) while going 18-for-19 in save opportunities...Did not allow a run in 19 consecutive road games (18.2 IP) from 9/13/22-6/23/23.
2022
Led the National League with 41 saves, second-most in the majors behind CLE’s Emmanuel Clase (42). In 65 appearances for ATL, was 5-2 with a 3.38 ERA, 1.05 WHIP and .192 opponent AVG (64.0 IP, 45 H, 24 ER, 22 BB, 85 SO). Became only the 10th player in MLB history to record at least 40 saves in as many as four seasons. With 30 saves for the eighth time in as many 162-game seasons, joined Mariano Rivera, Trevor Hoffman, and Craig Kimbrel as the only pitchers to accomplish the feat. Made at least 60 appearances for the 9th time. Made his 11th Opening Day roster. Allowed three runs on three hits in his season debut (4/8 vs. CIN), then gave up 0 hits and 0 runs in his remaining eight games in April (8.0 IP, 0-for-24, 11 SO, 1 BB). In his final seven outings (beginning 9/24), allowed only one hit and was 5-for-5 in save opportunities (7.0 IP, 1-for-22, 10 SO, 2 BB). Appeared in two games during the NLDS against PHI, tossing a scoreless inning to earn the save in Game 2.
2021
Played his 12th major league season and went 4-4 with a 2.22 ERA (17 ER/69.0 IP), 38 saves and 86 strikeouts over 69 appearances with the Dodgers...He ranked second in the National League with his 38 saves, trailing only San Diego’s Mark Melancon....Recorded his 350th save as a Dodger, on Oct. 1 vs. Milwaukee, which extended his own franchise record and ranks 13th all-time in major league history....In his last 30 games after blowing three consecutive saves from July 18-22, he went 3-0 with 17 saves and a 1.17 ERA (4 ER/30.2 IP) with 42 strikeouts...His 2.22 ERA was his lowest since compiling a 1.32 ERA in 2017, when he led the majors with 41 saves and finished fifth in N.L. Cy Young voting...Allowed just 36 hits on the season as opponents batted .153 against him, and his 4.7 hits per 9.0 innings rate was the third lowest of his career....Issued a career most 36 walks…His previous career-high was 26 bases on balls in 2011...His 4.7 walks per 9.0 innings last season were his most since issuing 5.0 walks per 9.0 in his debut season in 2010 (15 BB/27.0 IP).
2020
Went 3-1 with 11 saves and a 3.33 ERA in 27 games, ranking among the NL’s best relievers in strikeouts (34, T-9th), saves (T-3rd), appearances (T-3rd) and wins (T-10th)...Named National League Reliever of the Month for July/August, going 1-0 with nine saves and a 1.23 ERA (2 ER/14.2 IP)…held opponents to a .122 batting average with a 0.82 WHIP, striking out 21 in 14.2 innings...Tossed scoreless relief in five of eight Postseason appearances and picked up t wo saves during the Dodgers’ run to a World Championship.
2019
Ranked among National League pitchers in saves (33, 5th) and games finished (51, T-4th)…was one of 11 Major League pitchers with at least 30 saves ... Recorded at least 30 saves for the sixth straight year, becoming only one of three active players to reach the 30 save mark in six or more seasons, joining Aroldis Chapman (7) and Craig Kimbrel (8) ... Produced four saves of more than 1.0 inning…earned a season-long 1.2 inning save against the Mets on May 27 ... Went 5-3 with a 3.71 ERA (26 ER/63.0 IP) and a 1.06 WHIP in 62 games...struck out 80 batters against 16 walks, averaging 11.43 strikeouts per 9.0 innings while posting a 5.00 strikeout-to-walk ratio...limited opponents to a .213 average, including a .198 mark against left-handers and a .229 average against righties...on April 17 against Cincinnati, he passed Don Sutton (550) for the most all-time games pitched by a Dodger...the Dodgers went 49-13 in games in which he pitched.
2018
Earned a third consecutive All-Star selection after going 1-5 with 38 saves and a 3.01 ERA (24 ER/71.2 IP) in 69 relief appearances ... Struck out 82 batters against just 17 walks in 71.2 innings…held opposing hitters to a .201 average, while posting a 0.99 WHIP ... Ranked second in the NL with 38 saves, behind only the Rockies' Wade Davis…collected five four-plus out saves…also ranked among NL relievers in strikeout-to-walk ratio (4.82, 8th), strikeouts (9th) and WHIP (12th) ... Successfully converted 90.5 percent of his save opportunities, including a run of 21 consecutive save opportunities from April 22-July 4 ... Picked up the 250th save of his career on June 25 vs. the Cubs, becoming the 36th pitcher in MLB history to reach the milestone ... Tossed scoreless relief in seven of nine Postseason appearances, allowing two runs in 10.2 innings (1.69 ERA)…limited opposing hitters to a .114 batting average (4-for-35) with a 0.66 WHIP, while striking out nine ... Missed 10 games due to an irregular heartbeat (August 10-20)…underwent a heart ablation procedure on Nov. 26, 2018, performed by Dr. Koonlawee Nademanee in Los Angeles.
2017
Honored as the Trevor Hoffman NL Reliever of the Year for the second consecutive season and selected to his second straight All-Star game after going 5-0 with a 1.32 ERA (10 ER/68.1 IP) and 41 saves...recorded his third-career 40-plus save season (also: 2014, '16), joining Eric Gagné (2002-04) as the only pitchers in Dodger history with three seasons of 40 or more saves...Led Major League relievers in ERA (1.32), WHIP (0.75) and strikeout-to-walk ratio (15.57), while tied for the National League lead in saves (41, T-2nd ML)...also ranked among the NL relievers in strikeouts (109, 2nd), wins (5, T-10th) and strikeouts per nine innings (14.36, 2nd) • Limited hitters to a .17 7 (5th, NL)/.206 (1st, NL)/.270 (4th, NL) slashline, including holding right-handers to a .120 average (15-for- 125) and a .236 mark against lefties (29-for-123)...held batters to a .476 OPS, which was the third lowest in the National League...Held batters with runners in scoring position to a .136 average (8-for-59) and a .161 mark with runners on base...Named National League Reliever of the Month for the month of June...was perfect in save opportunities throughout the month, as he converted each of his 10 chances over 12 games in 14.0 innings, while striking out 18 against a lone walk...posted a scoreless innings streak of 17.0 innings (May 23-July 5)...Recorded the 200th save of his career after tossing a perfect ninth inning with a strikeout against the Reds on June 11...Began the season striking out 51 of 115 batters he faced without issuing a walk, which according to Elias Sports Bureau is the most strikeouts to open a season without a walk in big league history...Struck out the side on only nine pitches in the ninth inning on May 18 against the Marlins at Dodger Stadium, which was the 79th time in Major League history that an immaculate inning was recorded... became the first Dodger pitcher to throw an immaculate inning since Todd Worrell on Aug. 13, 1995...Recorded his first career extra-base hit and RBI on June 25 against the Rockies after stroking an RBI double in the eighth inning off of Greg Holland...Tossed scoreless relief in 10 of 13 postseason appearances and converted five of six save opportunities...three of the five saves were four-plus out saves...went 1-1 with a 1.62 ERA (3 ER/16.2 IP) and struck out 20 batters against just three walks, while limiting batters to a .138 average...since saves became an official stat in 1969, he is tied for fourth all-time on the career postseason saves list.
2016
Named the Trevor Hoffman NL Reliever of the Year and selected to his first-career All-Star Game, going 3-2 with 47 saves and a 1.83 ERA in 71 games...Tied with Zach Britton and Mark Melancon for second in the Majors with a career-high 47 saves, four behind Jeurys Familia...was 47 of 53 in save opportunities and was the only Dodger to record a save in 2016, marking the first time that's happened since the save became a statistic in 1969...Led the Majors in WHIP (0.67) and opponents' batting average (.150), while ranking among the National League's best relievers in ERA (1.83, 2nd) and strikeouts (104, 3rd)...walked only 11 batters in 68.2 innings and owned the best strikeout-to-walk ratio in the National League (9.45)• On June 21 vs. Washington, established new Dodger franchise marks in saves, finishing the year with 189 after surpassing Eric Gagné (161)…also set the franchise record for strikeouts as a reliever (632), eclipsing Jim Brewer's mark of 604• Tossed scoreless relief in six of seven postseason appearances and successfully converted all three save opportunities in the NLDS and NLCS...five of seven outings were more than 1.0 inning, while his 3.0 innings in NLCS Game 6 at Chicago were a career high...also established a career high with 51 pitches thrown in 2.1 innings in NLDS Game 5 at Washington.
2015
Was successful on 36 of 38 save opportunities (94.7%), while going 2-1 with a 2.41 ERA in 54 games in his sixth MLB season. ... In the postseason, picked up two saves in as many opportunities and struck out four in 3.1 scoreless innings in three NLDS games against the Mets. ... Ranked seventh in the NL in saves and third in save percentage…reached the 30-save mark for the second time in his career…became just the third Dodger reliever to post consecutive 30-save seasons (also: Todd Worrell, 1995-97 and Eric Gagne, 2002-04). ... Led MLB relievers with a 0.78 WHIP and ranked third among NL relievers with a .176 opponents' batting average. ... Struck out 80 against just eight walks, leading NL relievers with a 10.00 strikeout-to-walk ratio. ... Closed the season by tossing scoreless relief in 17 of his last 19 regular-season games after Aug 25, going a perfect 12-for-12 in save opportunities and posting a 1.93 ERA (4 ER/18.2 IP) in that span. ... Made his 2015 debut on May 15 vs. Colorado and struck out four in a scoreless eighth inning (Carlos Gonzalez reached on a passed ball), as he recorded just the sixth four-strikeout inning by a pitcher in Dodger history…did not allow a baserunner in his first five appearances of the season (5.0 IP), May 15-25. ... Missed first 34 games of the season due to Feb. 17 surgery to remove a growth from a bone in his left fifth metatarsal.
2014
Posted a 2-3 record with a 2.76 ERA and tied for third in the NL with a career-high 44 saves in his fifth big league season...Successfully converted 16 consecutive save opportunities from April 17-June 17 and 44-of-49 save opportunities overall this year (89.8%)...Became just the fourth Dodger closer to record 40 saves in a season, joining Eric Gagne (2002-04), Jeff Shaw (2001) and Todd Worrell (1996)...Ranked second among NL relievers with 101 strikeouts, as he posted his second consecutive 100-strikeout season and the 12th 100-strikeout season by a reliever in Dodger history…prior to Jansen, the only previous Dodger reliever with 100 or more Ks in consecutive seasons was Eric Gagne (2002-04)...Limited opponents to a .224 batting average, including a .169 mark against right-handed hitters (22-for-130)...Strung together 11 consecutive scoreless appearances from June 21-July 29 (11.0 IP) and beginning with that run, he closed out the season by tossing scoreless relief in 32 of 35 appearances with a 1.26 ERA (5 ER/35.2 IP), 24 saves, a .180 opponents' batting average (23-for-128) and a 0.87 WHIP in that span…did not allow a run in his last nine appearances of the season (9.0 IP) after Sept. 5...Picked up his 100th career save on Aug. 27 at Arizona, becoming the sixth Dodger reliever to reach the milestone...Appeared in one postseason game in the Dodgers' NLDS loss to the Cardinals, striking out two in a scoreless inning to pick up the save in Game 2
2013
Finished the campaign with a career-high 28 saves in 32 opportunities and ranked among the NL relief leaders in saves (T-11th), ERA (1.88, 6th), opponents' batting average (.177, 7th), WHIP (0.86, 2nd) and strikeouts (111, 2nd)... His 111 strikeouts ranked as the seventh-most all-time by a Los Angeles reliever... Was lights out from July 3-conclusion of the season, going 2-0 with 21 saves in 22 opportunities, a 1.26 ERA (5 ER/35.2 IP) and 52 strikeouts in 34 games…went 1-0 with 19 saves in 20 opportunities, a 1.19 ERA (4 ER/30.1 IP) and a .110 opponents' batting average (11-for-100) in 30 second-half appearances... Posted an ERA under 2.00 in five of six months, April (1.29, 2 ER/14.0 IP in 13 games), June (1.26 ERA, 2 ER/14.1 IP in 14 games), July (1.35 ERA, 2 ER/13.1 IP in 12 games), August (0.73 ERA, 1 ER/12.1 IP in 12 games) and September (1.80 ERA, 2 ER/10.0 IP in 10 games)... Allowed just four hits all season with runners in scoring position, limiting opponents to a .068 average (4-for-59) with 23 strikeouts in those situations... Made 75 appearances, tying for the fourth most in the NL... Retired 27 consecutive batters from July 23-Aug. 8, including 15 strikeouts, becoming the first LA pitcher to retire 27 in a row since Greg Maddux in 2006 (32)... Was dominant in his 40 home appearances, going 2-1 with 12 saves in 14 opportunities and a 1.32 ERA (6 ER/41.0 IP)…struck out 61, walked nine and allowed just one home run in 41.0 innings at Dodger Stadium... Limited right-handed hitters to a .158 batting average (25-for-158), while striking out 74 of 171 total righties faced (10 walks, three hit batters)... Made six postseason appearances for the Dodgers, successfully converting both of his save opportunities and allowing two runs on six hits in 4.1 innings (4.15 ERA)…struck out 10 and only issued one walk during postseason play…struck out the side to pick up the save in the Dodgers' NLDS-clinching victory over Atlanta in Game 4 as Los Angeles closed out the series with a 4-3 win at Dodger Stadium…entered the game with the
winning run on base and allowed a game-winning single to Carlos Beltran in the 13th inning of Game 1 of the NLCS at St. Louis in the Dodgers' 3-2 loss.
2012
Set career highs in appearances (65), innings (65.0), wins (5), saves (25) and strikeouts (99) in his third big
league season. Ranked among the NL relief leaders in wins (T-10th), saves (T-10th), strikeouts (3rd), ERA (2.35, 8th),
opponents' batting average (.146, 3rd) and WHIP (0.85, 3rd). Successfully converted 25 of 32 save opportunities after taking over as the club's full-time closer in MayRecorded saves over three consecutive days twice in 2012,
doing so from July 3-5 and also June 4-6. Limited first batters to a .158 batting average (9-for-57)
with 32 strikeouts. Allowed four of 12 inherited runners to score. Held opposing hitters to a .146 batting average, equally
keeping right-handers (.145, 16-for-110) and left-handers
(.147, 17-for-116) in check. Limited opponents to a .211 average with runners in scoring
position (8-for-38) and to a .181 mark with runners on base
(13-for-72). Did not allow a hit over 9.0 scoreless innings in nine appearances from June 15-July 13...walked two, struck
out 14 and went a perfect 6-for-6 in save opportunities in that span...had two other runs of 8.0 or more of
consecutive scoreless innings, doing so from April 15-29 (8.2 IP, 9 G) and July 17-Aug. 4 (8.1 IP, 8 G). Did not appear in a game between Aug. 28-Sept. 19 after suffering an irregular heartbeat during his Aug. 27
appearance at Colorado. Had ablation heart surgery on Oct. 23 performed by Dr. Koonwalee Nademanee at White Memorial Hospital.
2011
Dominated during the second half of the season and established a new Major League
record by averaging 16.10 strikeouts per nine innings, besting the mark previously held
by Carlos Marmol (15.99, 2010)...Limited opponents to a .159 batting average (30-for-189), which ranked third among
Major League pitchers (min. 50.0 IP)...Made his first Opening Day roster, but struggled during the month of April and was
optioned to Double-A Chattanooga on May 1...returned on May 6, but placed on the
disabled list with right shoulder inflammation on May 29...was activated on June 18...After being activated on June 18, went 1-0 with a 0.55 ERA (2 ER/32.2 IP) in his final
31 games...limited the opposition to a .094 average (10-for-106) and did not allow a
homer over that time...struck out 61 batters over his final 32.2 innings pitched...Was hospitalized with an irregular heartbeat after his July 26 outing...was placed on
the disabled list on July 29 due to blood thinning medication taken to treat the irregular
heartbeat...was activated on Aug. 25 and remained healthy the rest of the season...Overall, went 2-1 with a 2.85 ERA and five saves in 51 games... allowed three homers on the
season and none after April 19...Struck out 96 in 53.2 innings pitched...his 96 Ks were tied for fifth among Major League
relievers (ranked second among MLB rookies)...Posted a 1.71 ERA (5 ER/26.1 IP) while limiting opponents to a .143 average in 23 road games...Did not allow a run over 17 games (19.0 IP) from June 1 to Aug. 30...the 19.0-inning scoreless
streak was the longest by a Dodger reliever in 2011...With runners in scoring position and two outs, opponents went 3-for-26 (.115) with 16 strikeouts...Held batters to a .148 mark (13-for-88) in close and late situations...Only one of 21 inherited runners scored off him (95.2 %)...Batters swung and missed at 38.3 % of his pitches, which was the second-best mark in
baseball, behind Craig Kimbrel's 38.6 swing-and-miss pct. (min. 30 games)...Struck out a career high-tying four batters on four different occasions...In 23 games after the All-Star break, went 1-0 and 4-for-4 in save opportunities while posting a 0.78 ERA (2 ER/23.0 IP.)
2010
Finished the season 1-0 with a 0.67 ERA (2 ER/27.0 IP) and four saves in 25 games...his ERA was
the fourth lowest by a rookie with a minimum of 25.0 innings in Major League history ... Recalled on July 23 from Double-A Chattanooga, where he was 4-0 with eight saves and a 1.67
ERA (5 ER/27.0 IP) in 22 games as the closer ... began the season with Single-A Inland Empire and
appeared in 11 games for the 66ers ... earned the save in the Double-A All-Star Game on July 12 ... With Los Angeles, struck out 41 and walked just 15 in his 27.0 innings ... Averaged 13.7 strikeouts per nine innings which ranked third in the Major Leagues among pitchers
with at least 20.0 innings pitched ... Despite pitching in just 25 games, his 41 K's tied for
ninth among all rookie relievers ... Limited hitters to a .130 batting average (12-for-92)
with just three extra-base hits (all doubles) ... righthanders
hit .064 (3-for-48) against him and lefties
.205 (9-for-44) ... Batters were just 4-for-40 (.100) off him during the
day ... No. 3 batters were 1-for-13 against him and cleanup
hitters 1-for-10 ... The opposition hit .071 (3-for-42) with runners on base
and .091 (2-for-22) with runners in scoring position ...
batters were 1-for-12 (.083) with RISP and two outs ... Faced 109 batters and retired 80 of them ... Allowed just one run at home over 12 appearances (13.0 IP) ... his ERA on the road was even better
at 0.64 (1 ER/14.0 IP) ... Had three saves in three opportunities and did not allow a single run against the National League
West this season over 14.1 innings (13 games) ... Made his big league debut on July 24 and tossed a perfect inning ... struck out the Mets' Angel Pagan
and David Wright for the first two outs of his career ... Earned four saves on the season, including July 25 vs. NYM, which was his second Major League
game ... the other saves came on Sept. 24, Sept. 28 and Oct. 2 ... Struck out a career-high four batters over 2.0 innings on Aug. 26 at Milwaukee ... Picked up his first and only Major League victory on Sept. 11 at HOU, firing a perfect eighth inning ... Tossed a season-high 2.0 innings on four separate occasions (8/20, 8/26, 8/29, 9/29) ... each time he threw 2.0 scoreless
frames ... Was the Dodgers' Farmers Insurance September Player of the Month after giving up just one run and four hits in 10 games during
the month (11.0 IP) ... Closed out the season by tossing 12.1 straight scoreless innings ... Named to Baseball America's second team as a relief pitcher in their season-ending minor league awards issue.
2009
Opened the season at Single-A Inland Empire
and hit .202 (18-for-89) with a homer and 11
RBI in 26 games...Promoted to Triple-A Albuquerque on May 29
when A.J. Ellis was recalled by the Dodgers and
appeared in eight games, batting .185 (5-for-
27) with two RBI in eight games...collected
all of his hits off right-handed pitching, going
5-for-17 (.294)...Activated by Inland Empire on July 29 and converted
to a pitcher, allowing six runs in 11.2
innings (4.63 ERA) in 12 relief appearances...
struck out 19 and walked only 11 batters...Following the season, played for the Peoria Javelinas
of the Arizona Fall League, allowing five
runs in 4.2 innings (9.64 ERA) in five relief
appearances...excluding his final appearance,
when he allowed four runs in 0.2 inning, allowed
just one run in 4.0 innings (2.25 ERA)
in four appearances...overall, struck out nine
and walked only three batters...Played for Team Netherlands in the 2009
World Baseball Classic, going 1-for-13 with a
walk in five games...singled off Team USA's Roy Oswalt in a second-round matchup
2008
Spent the entire campaign with Single-A Great Lakes and batted .227 with 15 doubles...Ranked fourth on the club with nine homers and fifth on the team with 27 RBI in 79 games...Was a midseason Midwest League All-Star, going 0-for-1 with a walk in the contest
2007
Split the season between Single-A Great Lakes and Rookie-advanced Ogden...Batted .102 (6-for-59) with one home run and six RBI in 20 games for Great Lakes and hit .240 (44-for-183) with two homers
and 22 RBI in 53 games for Ogden...Played for West Oahu of the Hawaii Winter Baseball League following the season, batting .206 with two RBI in 21 games
2006
Spent the entire season with the Rookie-level Gulf Coast League Dodgers, batting .248 with a home run and 10 RBI in 35 games...Played for North Shore of the Hawaii Winter Baseball League following the season, hitting .121 (4-for-33) with two RBI in nine
games
2005
Opened the season with Rookie-level Gulf Coast League, batting .304 (31-for-102) with one home run and 18 RBI in 34
games before being promoted to Rookie-advanced Ogden on August 26...Went 2-for-11 (.182) with an RBI in three games with Ogden to close the season.
