Kenley Jansen

RP · Boston Red Sox

Bats S Throws R
Height 6'5" Weight 275
DOB 1987-09-30 Age 36.2
Hometown Willemstad, Curacao
2023 Fantasy Rankings

NFBC ADP (15-team): 7.09, 99th

Season Projections

THE BAT$106160.03230037220477326243.601.12

ATC projections by Ariel Cohen. Steamer projections by Steamer Projections Blog. THE BAT projections by Derek Carty. Zeile Consensus projections by FantasyPros.

Fantasy Baseball News Last 90 Days

  • Offseason Outlook: Boston Red Sox

    Headshot for Wilyer Abreu

    Uncertainty seems to be the running theme of the Red Sox right now. Though they have World Series championships not too far in the rear-view mirror, recent seasons have seen them cut payroll and wind up in a middle ground between a rebuilding club and a frontline contender. Chief baseball officer Chaim Bloom was recently…

    Oct 24 · MLB Trade Rumors MLB Offseason Boston Red Sox Wilyer Abreu Roman Anthony Brayan Bello Brennan Bernardino Miguel Bleis Triston Casas Kutter Crawford Rafael Devers Jarren Duran Adam Duvall David Hamilton Tanner Houck Kenley Jansen Corey Kluber Chris Martin Marcelo Mayer Reese McGuire James Paxton Nick Pivetta Ceddanne Rafaela Rob Refsnyder Pablo Reyes Chris Sale John Schreiber Trevor Story Kyle Teel Justin Turner Alex Verdugo Garrett Whitlock Josh Winckowski Connor Wong Nick Yorke Masataka Yoshida
  • Previewing The 2023-24 Free Agent Class: Righty Relievers

    Headshot for Jacob Barnes

    MLBTR’s position by position preview of the upcoming free agent class concludes with a look at the right-handed relievers. While there’s no one at the top of this group who’ll rival Josh Hader among the southpaws, there are a number of impressive middle to late inning arms who’ll hit the market. Note: only players who…

    Sep 26 · MLB Trade Rumors Prospects St. Louis Cardinals Miami Marlins Baltimore Orioles Chicago Cubs Los Angeles Dodgers San Francisco Giants Texas Rangers Atlanta Braves Detroit Tigers Tampa Bay Rays Washington Nationals Cincinnati Reds Minnesota Twins San Diego Padres Houston Astros Toronto Blue Jays Chicago White Sox Boston Red Sox Philadelphia Phillies Seattle Mariners Cleveland Guardians Oakland Athletics Arizona Diamondbacks New York Yankees New York Mets Pittsburgh Pirates Garrett Acton Jacob Barnes Matt Barnes Anthony Bass Felix Bautista Brad Boxberger Archie Bradley Ryan Brasier John Brebbia Matt Bush Luis Cessa Jesse Chavez Jose Cisnero Chris Devenski Carl Edwards Jr. Paolo Espino Jeurys Familia Buck Farmer Dylan Floro Shintaro Fujinami Michael Fulmer Luis Garcia Luis Garcia Luis Garcia Luis Garcia Mychal Givens Kendall Graveman Chad Green Josh Hader Heath Hembree Liam Hendriks Jordan Hicks Daniel Hudson Tommy Hunter Kenley Jansen Joe Jimenez Pierce Johnson Jakob Junis Joe Kelly Ian Kennedy Craig Kimbrel Chad Kuhl Dinelson Lamet Jose Leclerc Dominic Leone Reynaldo Lopez Nick Martinez Phil Maton Trevor May Collin McHugh Mark Melancon Keynan Middleton Shelby Miller Rafael Montero Jimmy Nelson Hector Neris Adam Ottavino Emilio Pagan Drew Pomeranz Erasmo Ramirez Alex Reyes David Robertson Dennis Santana Bryan Shaw Ryne Stanek Robert Stephenson Chris Stratton Ryan Tepera Blake Treinen Drew VerHagen Alika Williams Nick Wittgren Jimmy Yacabonis Kirby Yates
  • Kenley Jansen Returns From COVID List

    Headshot for Kenley Jansen

    The Boston Red Sox reinstated closer Kenley Jansen (illness) from the COVID injured list on Saturday and optioned pitcher Zack Weiss to Triple-A Worcester in a corresponding move. Jansen will return to Boston's bullpen for the first time since testing positive for COVID on Sept. 13. He'll have just over a week left to pick up some save opportunities for fantasy managers still playing for a title, but the Red Sox could ease him back into the fold, especially since he had given up five runs in his previous five appearances before going on the shelf. The 35-year-old veteran right-hander hasn't recorded a save since Aug. 20 and has a 3.63 ERA, 1.28 WHIP, 29 saves and 52 strikeouts in 44 2/3 innings this year over 51 outings out of the 'pen.

    Sep 23 · Source via Closers Boston Red Sox Kenley Jansen
  • Kenley Jansen Placed On COVID List

    Headshot for Kenley Jansen

    Boston Red Sox relief pitcher Kenley Jansen (illness) has been placed on the COVID-19 list on Wednesday. The veteran reliever was pulled from Tuesday's relief appearance due to fatigue and illness symptoms. Now, Jansen has tested positive for COVID-19 and will be sidelined for the next week. His absence leaves the Red Sox shorthanded in the bullpen for the time being. The assumption is that Chris Martin and John Schreiber will be the favorites in the ninth inning with Jansen sidelined.

    Sep 13 · Source via Closers Closers Boston Red Sox Kenley Jansen Chris Martin John Schreiber
  • Kenley Jansen Leaves Early With Fatigue And Illness

    Headshot for Kenley Jansen

    Boston Red Sox closer Kenley Jansen was pulled from his outing in the ninth inning in the second game of a doubleheader against the division-rival New York Yankees on Tuesday with fatigue and illness symptoms. It was a rough outing for Jansen, as he allowed two runs (one earned) on a hit while walking one before being pulled in favor of Nick Robertson after failing to record a single out. The 35-year-old should be considered day-to-day, and it's ultimately good news that he's not dealing with a specific injury or a heart-related issue that he's had in the past. The four-time All-Star is Boston's primary closer and entered Tuesday's games with a 3.43 ERA (3.60 FIP), 1.23 WHIP, 29 saves and 52 strikeouts in 44 2/3 innings of work. If he misses any upcoming save situations, they'll likely go to either Chris Martin or Josh Winckowski.

    Sep 12 · Source via Closers Boston Red Sox Kenley Jansen
  • Kenley Jansen Allows Walk-Off Homer Tuesday

    Headshot for Kenley Jansen

    Boston Red Sox closer Kenley Jansen took his sixth loss of the season in Tuesday's 8-6 extra-innings loss to the Rays. Jansen came on to pitch the bottom of the 11th inning up by one with a free runner on second. He walked the leadoff hitter before allowing a walk-off, three-run home run to Brandon Lowe. This was the veteran's third consecutive day pitching, and he allowed multiple runs in two of those three outings. Despite this rough patch, Jansen has converted 29 of 33 save opportunities this season with a 3.43 ERA and a 10.48 K/9 rate. He remains a solid fantasy option, although he will likely receive a few days off after his recent heavy workload.

    Sep 6 · Source via Closers Boston Red Sox Kenley Jansen
    2023 ATC$66160.03327017222506327253.751.20
    2023 Steamer$56363.03330037125558331294.141.27
    2023 THE BAT$106160.03230037220477326243.601.12
    2023 Zeile$86360.9332902732450000253.571.17

    Historic stats obtained free of charge from and are copyrighted by Retrosheet. ATC projections by Ariel Cohen. Steamer projections by Steamer Projections Blog. THE BAT projections by Derek Carty. Zeile Consensus projections by FantasyPros.

    Sep 12vs NYYL 1-40.0000000110021
    Sep 5at TBL 6-80.0010100111032
    Sep 4at TBW 7-31.00000000000000.000.00
    Sep 3at KCW 7-31.000000103002218.003.00
    Aug 30vs HOUL 4-71.00000010000000.000.00
    Aug 23at HOUW 7-50.10000000000000.000.00
    Aug 20at NYYW 6-51.00010020101000.001.00
    Aug 15at WASW 5-41.00010010000000.000.00
    Aug 13vs DETW 6-31.00010000100000.001.00
    Aug 10vs KCW 2-01.00010020000000.000.00
    Aug 9vs KCW 4-31.00010011110119.002.00
    Aug 7vs KCW 6-21.01000020000000.000.00
    Aug 1at SEAW 6-41.00010010000000.000.00
    Jul 29at SFL 2-30.0010000011011
    Jul 28at SFW 3-21.00010020000000.000.00
    Jul 26vs ATLW 5-31.00010010101000.001.00
    Jul 22vs NYMW 8-60.10010000100000.003.00
    Jul 19at OAKL 5-61.00000011000000.001.00
    Jul 14at CHCW 8-30.10010010000000.000.00
    Jul 9vs OAKW 4-31.00010011000000.001.00
    Jul 5vs TEXW 4-21.00010000000000.000.00
    Jul 1at TORW 7-61.10010030300116.752.25
    Jun 29vs MIAL 0-21.00000010310119.003.00
    Jun 24at CWSL 4-50.201000102001113.503.00
    Jun 23at CWSW 3-11.00010010000000.000.00
    Jun 21at MINL 4-51.00000010000000.000.00
    Jun 18vs NYYW 4-11.00010020100000.001.00
    Jun 12vs COLL 3-41.00000010000000.000.00
    Jun 11at NYYW 3-21.01000010000000.000.00
    Jun 9at NYYW 3-21.00010010200000.002.00
    Jun 6at CLEW 5-41.00010010000000.000.00
    Jun 3vs TBW 8-51.00010030100000.001.00
    Jun 3vs TBL 2-41.001000113002218.004.00
    Jun 1vs CINW 8-21.00000001000000.001.00
    May 27at ARIW 2-11.00010010000000.000.00
    May 24at LAAL 3-71.00000001000000.001.00
    May 20at SDW 4-21.00010002000000.002.00
    May 13vs STLL 3-41.001010031003218.004.00
    May 12vs STLL 6-80.0010100131033
    May 10at ATLW 5-21.00010010100000.001.00
    May 6at PHIW 7-41.00010010100000.001.00
    May 5at PHIW 5-31.00010031100000.002.00
    Apr 29vs CLEW 8-71.00001010300119.003.00
    Apr 25at BALW 8-60.20010000000000.000.00
    Apr 21at MILW 5-31.00010020000000.000.00
    Apr 18vs MINW 5-41.00000020000000.000.00
    Apr 15vs LAAW 9-71.00010000000000.000.00
    Apr 14vs LAAW 5-31.00010030100000.001.00
    Apr 9at DETW 4-11.00010021200000.003.00
    Apr 6at DETW 6-31.00010000000000.000.00
    Apr 1vs BALW 9-81.01000021100000.002.00


    Oct 4at MIAW 2-11.00000020000000.000.00
    Oct 2vs NYMW 5-31.00000000000000.000.00
    Oct 1vs NYMW 4-21.00000020000000.000.00
    Sep 30vs NYMW 5-21.00000031101000.002.00
    Sep 28at WASL 2-31.00000010000000.000.00
    Sep 25at PHIW 8-71.00000011000000.001.00
    Sep 24at PHIW 6-31.00000010000000.000.00
    Sep 20vs WASW 3-21.00000021300119.004.00
    Sep 19vs WASW 5-21.00000010000000.000.00
    Sep 17vs PHIW 4-31.00000010000000.000.00
    Sep 13at SFW 5-11.00000020100000.001.00
    Sep 11at SEAL 7-80.201010002202227.003.00
    Sep 9at SEAW 6-41.00000020000000.000.00
    Sep 6at OAKW 10-91.00000020000000.000.00
    Sep 3vs MIAW 2-10.200010012001113.504.50
    Sep 1vs COLW 3-01.00000000000000.000.00
    Aug 31vs COLW 3-21.000000111102218.002.00
    Aug 27at STLL 5-60.101010022012254.0012.00
    Aug 22at PITW 2-11.00000020000000.000.00
    Aug 19vs HOUW 6-21.00000020100000.001.00
    Aug 18vs NYMW 3-21.00000010100000.001.00
    Aug 14at MIAW 3-11.00000010100000.001.00
    Aug 13at MIAW 5-21.00000001000000.001.00
    Aug 12at MIAW 4-31.00000022000000.002.00
    Aug 9at BOSW 9-71.00000011100000.002.00
    Aug 5at NYMW 9-61.00000010110119.001.00
    Jul 31vs ARIW 1-01.01000011000000.001.00
    Jul 29vs ARIW 5-21.00000032100000.003.00
    Jul 26at PHIW 6-30.20000000000000.000.00
    Jul 24vs LAAL 1-91.00000010200119.002.00
    Jul 16at WASW 6-31.000410000000000.000.00
    Jul 14at WASW 5-41.00000020210119.002.00
    Jul 13vs NYML 3-71.00000000000000.000.00
    Jun 26vs LADL 3-51.000010203002218.003.00
    Jun 25vs LADW 5-31.00000030000000.000.00
    Jun 23vs SFW 7-61.00000010110119.001.00
    Jun 20vs SFW 2-11.01000030200000.002.00
    Jun 19at CHCW 6-01.00000000000000.000.00
    Jun 12vs PITW 5-31.00000010100000.001.00
    Jun 10vs PITW 4-21.00000010000000.000.00
    Jun 9vs PITW 3-11.00000020000000.000.00
    Jun 7vs OAKW 3-21.00000010000000.000.00
    Jun 5at COLW 8-71.00000010210119.002.00
    Jun 3at COLW 3-11.00000020100100.001.00
    May 31at ARIL 7-81.00001011200119.003.00
    May 29vs MIAW 6-31.00000021000000.001.00
    May 27vs MIAW 6-41.00000020100000.001.00
    May 24vs PHIW 6-51.010010011102218.002.00
    May 21at MIAW 4-31.00000031200119.003.00
    May 18at MILL 6-71.00001001100119.002.00
    May 17at MILW 3-01.00000020000000.000.00
    May 15vs SDL 3-71.00000010000000.000.00
    May 14vs SDW 6-51.21000020000000.000.00
    May 11vs BOSW 5-31.01000021000000.001.00
    May 7vs MILW 3-21.00000020200119.002.00
    May 2at NYMW 5-21.00000010100000.001.00
    Apr 29at TEXW 6-31.00000010000000.000.00
    Apr 27vs CHCL 3-61.00000010000000.000.00
    Apr 26vs CHCW 3-11.00000020000000.000.00
    Apr 22vs MIAW 3-01.00000021000000.001.00
    Apr 19at LADW 3-11.00000010000000.000.00
    Apr 16at SDW 5-21.00000010000000.000.00
    Apr 15at SDW 5-21.00000020000000.000.00
    Apr 13vs WASL 1-31.00000010000000.000.00
    Apr 8vs CINW 7-61.000000113003327.004.00
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