J.B. Wendelken

31-Year-Old PitcherP
 Free Agent  
2025 Fantasy Outlook
There was no outlook written for J.B. Wendelken in 2025. Check out the latest news below for more on his current fantasy value.
RANKS
From Preseason
$Signed a one-year deal with the Yokohama BayStars of NPB in November of 2022.
Headed to Japan
PFree Agent  
November 27, 2022
Wendelken signed a one-year deal with the Yokohama BayStars of the NPB on Sunday, Jon Heyman of the New York Post reports.
ANALYSIS
The deal is worth up to $3.05 million including performance incentives. The 29-year-old righty had a 5.28 ERA and 1.34 WHIP in 29 innings as a reliever with the Diamondbacks last season.
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Pitching Stats
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2022
2021
2020
2019
2018
2022 MLB Game Log
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2021 MLB Game Log
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2020 MLB Game Log
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2019 MLB Game Log
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2018 MLB Game Log
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Left/Right Pitching Splits
Since 2022
 
 
-30%
BAA vs LHP
2024
No Stats
2023
No Stats
2022
 
 
-30%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2022vs Left .184 44 5 6 7 1 0 0
Since 2022vs Right .261 78 16 8 18 2 0 4
2024vs Left 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
2022vs Left .184 44 5 6 7 1 0 0
2022vs Right .261 78 16 8 18 2 0 4
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Home/Away Pitching Splits
Since 2022
 
 
-28%
ERA at Home
2024
No Stats
2023
No Stats
2022
 
 
-28%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2022Home 4.58 1.25 17.2 2 1 0 5.1 4.1 1.5
Since 2022Away 6.35 1.50 11.1 0 0 0 8.7 4.8 0.8
2024Home 0 0 0 0 0 0 0 0 0
2024Away 0 0 0 0 0 0 0 0 0
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
2022Home 4.58 1.25 17.2 2 1 0 5.1 4.1 1.5
2022Away 6.35 1.50 11.1 0 0 0 8.7 4.8 0.8
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Recent RotoWire Articles Featuring J.B. Wendelken See More
NL FAAB Factor: Waiver Pickups of the Week
September 26, 2021
Jan Levine concludes his column for the season with a look at some late contributors and a few to keep in mind for 2022.
MLB FAAB Factor: Waiver Pickups of the Week
April 8, 2021
Jason Shebilske analyzes the top waiver-wire options for the week, including Ryan McMahon, who should get regular at-bats for the Rockies.
AL FAAB Factor: Waiver Pickups of the Week
April 4, 2021
Erik Siegrist reviews the available talent in the Junior Circuit as Kyle Isbel looks to prove he's ready for the big leagues.
Erickson's AL Tout Wars Team
March 21, 2021
Gerrit Cole was Jeff Erickson's most expensive player in the AL Tout Wars draft.
The Long Game: Opportunity Knocks
March 3, 2021
Erik Siegrist takes a look at the potential keeper-league value to be found in AL job battles, as Jared Walsh could become this year's Luke Voit.
Past Fantasy Outlooks
2022
2021
Wendelken's performance took a dip with Oakland last season and he was designated for assignment in mid-August. However, Arizona recognized his solid body of work since 2018 and claimed him off waivers. The 28-year-old earned two wins, four holds and the first two saves of his career across 20 appearances with the Diamondbacks, but he wasn't overly impressive, posting a 4.34 ERA, 6.3 K/9 and 4.3 BB/9 across 18.2 innings. Despite a subpar 2021, he remains one of the most experienced relievers in Arizona's bullpen after the team signed veteran Mark Melancon for their closer role. Wendelken could pick up a save chance or two when Melancon is unavailable, but he's more likely to be an asset for holds after posting an ERA under the 3.60 mark in three straight campaigns between 2018 and 2020.
The A's have produced some of the top fantasy closers in recent seasons and it may now be Wendelken's time to shine in the ninth. He is not a flamethrower, but Wendelken sits 94-95 mph on average with his four-seamer, so he's no soft-tosser either. It was his slider -- which gets lumped in with his changeup on some sites -- that was next-level in 2020 as he allowed a silly .104 wOBA on the pitch, per Statcast (112 thrown). For his career, Wendelken has allowed 10 barrels among 235 batted-ball events, and he has posted an xBA below .190 in each of the past three seasons. He flipped the script and became more of a groundball pitcher last season, which is nice, although he had no homer issues to speak of anyway even when he was allowing more balls in the air. Oakland has its sights set high and brought in Trevor Rosenthal to be the successor to Liam Hendriks, so Wendelken will have to continue to prove himself in the middle innings.
More Fantasy News
Heads to free agency
PFree Agent  
October 13, 2022
Wendelken elected free agency Tuesday, per the MILB transaction log.
ANALYSIS
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Stays in organization
PArizona Diamondbacks  
July 19, 2022
The Diamondbacks outrighted Wendelken to Triple-A Reno on July 11.
ANALYSIS
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DFA'd by Arizona
PArizona Diamondbacks  
July 5, 2022
Wendelken was designated for assignment by the Diamondbacks on Tuesday.
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Reinstated from injured list
PArizona Diamondbacks  
May 7, 2022
Wendelken (undisclosed) was reinstated from the COVID-19 injured list Saturday.
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Placed on injured list
PArizona Diamondbacks  
Undisclosed
April 28, 2022
Wendelken was placed on the injured list for an undisclosed reason Thursday.
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Latest Fantasy Rumors
Taking over as closer?
PArizona Diamondbacks  
September 23, 2021
Wendelken recorded his second save of the year Thursday and could be taking over the closer role from veteran Tyler Clippard in the season's final weeks.
ANALYSIS
Clippard struggled Wednesday, allowing three runs in an inning of work, and the Diamondbacks turned to Wendelken for their next save opportunity. With the team sitting at 49-104, it wouldn't be surprising to see the 28-year-old Wendelken continue to see work over the 36-year-old Clippard.
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