Closer Monkey Quarterly Review

With most teams reaching one-quarter of their 162 games played, it’s time to delve into results by their relievers. Our compiled statistics reflect outcomes from games played through May 14, 2025, and the last 365 days (the statistical year).

Before going through the team’s closer(s), some leaderboards for the last 365 days.

Last Statistical Year Leaders

NameSaves
Emmanuel Clase45
Ryan Helsley45
Josh Hader39
Robert Suarez39
Kyle Finnegan39
Carlos Estévez32
Mason Miller31
Raisel Iglesias30
Andrés Muńoz29
Pete Fairbanks28
Jhoan Durán28
Tanner Scott27
Kirby Yates27
Kenley Jansen27
Edwin Díaz24
Trevor Megill22
Camilo Doval22
NameSavesHoldsSOLDS
Emmanuel Clase45146
Ryan Helsley45045
Bryan Abreu14142
Tanner Scott271441
Robert Suarez39140
Josh Hader39039
Kyle Finnegan39039
Lucas Erceg132437
Cade Smith43337
Hunter Gaddis03737
Yennier Cano33336
Jason Adam13536
Tyler Rogers13536
Kirby Yates27835
Ryan Walker171835
Griffin Jax53035
RelieverSwStr%NameK-BB%
Josh Hader21.5%Mason Miller31.2%
Dylan Lee19.6%Griffin Jax30.6%
Mason Miller19.6%Jeremiah Estrada30.4%
Griffin Jax19.2%A.J. Puk29.9%
Jeremiah Estrada18.4%Josh Hader29.6%
Jason Adam18.0%Cade Smith29.4%
Andrés Muñoz17.1%Jeff Hoffman29.1%
Edwin Díaz17.0%Mark Leiter Jr.28.5%
Kirby Yates16.9%Kirby Yates28.3%
Fernando Cruz16.9%Chris Martin28.0%
Mark Leiter Jr.16.9%Edwin Díaz27.9%
Tanner Scott16.6%Dylan Lee27.6%
Jeff Hoffman16.6%Aroldis Chapman25.7%
José Leclerc16.5%Alex Vesia25.6%
Angel Chivilli16.5%Tony Santillan25.4%
Ryne Stanek16.5%David Robertson25.0%
A.J. Puk16.3%Raisel Iglesias24.3%
Raisel Iglesias16.3%Fernando Cruz24.1%
Brendon Little16.3%Matt Strahm23.5%
Ryan Helsley16.2%Edwin Uceta23.4%
Luke Weaver15.8%Keegan Akin23.3%
NameSONameWHIP
Jeremiah Estrada114Raisel Iglesias0.79
Cade Smith106Hunter Gaddis0.80
Josh Hader104A.J. Puk0.81
Griffin Jax102Tyson Miller0.81
Mason Miller101Josh Hader0.85
Kirby Yates99Lucas Erceg0.85
Bryan Abreu99Nick Martinez0.85
Luke Weaver98Kyle Leahy0.88
Fernando Cruz97Jason Adam0.89
Aroldis Chapman96Matt Strahm0.89
Alex Vesia96Brant Hurter0.89
Keegan Akin96Emmanuel Clase0.90
Jeff Hoffman95Tyler Holton0.90
Jason Adam93Andrés Muñoz0.91
Mark Leiter Jr.92Manuel Rodríguez0.92

Reliever Breakdowns by Team

American League East

Baltimore Orioles

Closer: Félix Bautista

  • 2025: 12 IP, 7 saves, 15:6 K:BB (18.8 K-BB%), 1.00 WHIP, 15.5 SwStr%, 61.5 Strike%
  • He’s not appeared in consecutive games yet, but his workload should increase by June. 
  • Help may be on the way in the form of Andrew Kittredge by next week. 

Bautista has been solid despite working with reduced velocity after returning from Tommy John surgery. His team’s early struggles have not affected his save total, even though he has not appeared in back-to-back games yet.

Boston Red Sox

Closer: Aroldis Chapman

  • 2025: 16 IP, 6 saves, 22:6 K:BB (24.6 K-BB%), 1.00 WHIP, 19.4 SwStr%, 68.1 Strike%
  • Last Statistical Year: 64 IP, 19 saves, 96:28 K:BB (25.7 K-BB%), 1.14 WHIP, 15.1 SwStr%, 66.3 Strike%

Chapman has performed well, but his leverage ladder has not.

New York Yankees

Luke Weaver

  • 2025: 20 IP, 4 saves, 22:6 K:BB (22.2 K-BB%), 0.60 WHIP, 14.1 SwStr%, 68.1 Strike%
  • Last Statistical Year: 78 IP, 8 saves, 98:28 K:BB (23 K-BB%), 0.95 WHIP, 15.8 SwStr%, 64.5 Strike%

Devin Williams

  • 2025: 14 IP, 4 saves, 16:11 K:BB (7.4 K-BB%), 1.79 WHIP, 11.7 SwStr%, 60.4 Strike%
  • Last Statistical Year: 35.2 IP, 18 saves, 54:22 K:BB (20.5 K-BB%), 1.29 WHIP, 15.1 SwStr%, 61.3 Strike%
  • Last 14 Days: 4 IP, 6:3 K:BB (16.7 K-BB%), 1.25 WHIP, 16.7 SwStr%, 65.2 Strike%

This represents one of the most intriguing bullpens for the remainder of the season. Quotes from Aaron Boone make it sound like he wants Williams in the ninth inning, but Weaver’s been the better pitcher over the last 365 days.

Tampa Bay Rays

Closer: Pete Fairbanks

  • 2025: 17 IP, 8 saves. 16:9 K:BB (9.5 K-BB%), 1.29 WHIP, 11.8 SwStr%, 60.4 Strike%
  • Last Statistical Year: 54.1 IP, 28 saves, 49:18 K:BB (14.1 K-BB%), 1.09 WHIP, 10.9 SwStr%, 64.9 Strike%

Will this be the year Tampa Bay trades Fairbanks? He could be cheaper target before the trade deadline, which feels like something the Cubs would be interested in.

Toronto Blue Jays

Closer: Jeff Hoffman

  • 2025: 19.1 IP, 9 saves, 31:4 K:BB (33.3 K-BB%), 1.19 WHIP, 16.5 SwStr%, 70.6 Strike%
  • Last Statistical Year: 67.2 IP, 17 saves, 95:14 K:BB (29.1 K-BB%), 1.05 WHIP, 16.6 SwStr%, 68.4 Strike%

There have been some bumps in the road during recent appearances, but his salary and numbers above suggest it’s a blip, not a trend.

American League Central

Chicago White Sox

Three different relievers have recorded the team’s three saves. Cam Booser could be a viable option for those in league-only formats, and they just traded for Miguel Castro, but this bullpen will be in constant flux. If Grant Taylor works as a reliever upon promotion, I will be interested.

Cleveland Guardians

Closer: Emmanuel Clase

  • 2025: 18.1 IP, 9 saves, 19:4 K:BB (18.1 K-BB%), 1.58 WHIP, 17.3 SwStr%, 70.2 Strike%
  • Last Statistical Year: 72.1 IP, 45 saves, 63:13 K:BB (17.7 K-BB%), 0.90 WHIP, 14.1 SwStr%, 71.4 Strike%

Clase has emerged from his early season slump by converting his last five save chances.

Detroit Tigers

Primary Save Share: Will Vest

  • 2025: 20 IP, 4 saves, 23:7 K:BB (20.3 K-BB%), 1.05 WHIP, 13.8 SwStr%, 65.6 Strike%
  • Last Statistical Year: 73.1 IP, 6 saves, 79:21 K:BB (19.4 K-BB%), 1.08 WHIP, 11.3 SwStr%, 66.4 Strike%

It appears the baton has been passed from Jason Foley to Tommy Kahnle, and now Vest is the preferred option for save chances by A.J. Hinch.

Kansas City Royals

Closer: Carlos Estévez

  • 2025: 19.2 IP, 12 saves, 18:10 K:BB (9.4 K-BB%), 1.22 WHIP, 9.4 SwStr%, 62.3 Strike%
  • Last Statistical Year: 63 IP, 32 saves, 54:22 K:BB (12.7 K-BB%), 0.98 WHIP, 11 SwStr%, 66.2 Strike%

HLR: Lucas Erceg

  • 2025: 19 IP, 1 save, 14:1 K:BB (20.6 K-BB%), 0.47 WHIP, 11.2 SwStr%, 66.2 Strike%
  • Last Statistical Year: 64.2 IP, 13 saves, 64:9 K:BB (22.1 K-BB%), 0.85 WHIP, 13.4 SwStr%, 65.8 Strike%

While fantasy managers await for Erceg to get save chances, Estévez keeps outperforming his underlying data. Will his recent uptick in velocity prevent regression? Stay tuned.

Minnesota Twins

Closer: Jhoan Durán

  • 2025: 20.1 IP, 8 saves, 24:9 K:BB (18.5 K-BB%), 0.98 WHIP, 16 SwStr%, 67.7 Strike%
  • Last Statistical Year: 67.2 IP, 82:23 K:BB (20.7 K-BB%). 1.18 WHIP, 14.9 SwStr%, 66 Strike%

He’s tweaked his arsenal and been solid this season.

American League West

Houston Astros

Closer: Josh Hader

  • 2025: 18 IP, 10 saves, 26:5 K:BB (29.6 K-BB%), 0.89 WHIP, 19.4 SwStr%, 70.5 Strike%
  • Last Statistical Year: 72 IP, 39 saves, 104:22 K:BB (29.6 K-BB%). 0.85 WHIP, 21.5 SwStr%, 68.2 Strike%

Hader remains an elite option in his position.

Los Angeles Angels

Closer: Kenley Jansen 

  • 2025: 11 IP, 7 saves, 11:3 K:BB (16.7 K-BB%), 1.45 WHIP, 11.5 SwStr%, 68.7 Strike%
  • Last Statistical Year: 52 IP, 27 saves, 54:14 K:BB (19.3 K-BB%). 1.10 WHIP, 11.3 SwStr%, 69.3 Strike%

With Ben Joyce out for the season after undergoing shoulder surgery, Jansen will benefit from the return of Robert Stephenson. And if he struggles, “Bob-Steve” could assume closer duties after the All-Star break.

Seattle Mariners

Closer: Andrés Muñoz 

  • 2025: 19 IP, 25:8 K:BB (24.7 K-BB%), 0.79 WHIP, 17.4 SwStr%, 62.6 Strike%
  • Last Statistical Year: 61.2 IP, 29 saves, 82:27 (22.8 K-BB%), 0.91 WHIP, 17.1 SwStr%, 63 Strike%

A healthy and productive Muñoz is terrific for Seattle and fantasy managers.

Texas Rangers

Closer: Luke Jackson 

  • 2025: 13 IP, 12:7 K:BB (8.6 K-BB%), 1.54 WHIP, 9.3 SwStr%, 62.4 Strike%

Sidelined recently by a comeback line drive, his peripheral results suggest he’s on thin ice as a closer. He allows too much contact, does not produce whiffs, and can be predictable when his command struggles. Heed the WHIP and take note of who emerges as potential replacements.

The Athletics

Closer: Mason Miller

  • 2025: 15.1 IP, 30:6 K:BB (30.6 K-BB%). 0.98 WHIP, 21.5 SwStr%, 65.4 Strike%
  • Last Statistical Year: 64 IP, 101:23 K:BB (31.2 K-BB%), 0.95 WHIP, 19.6 SwStr%, 66.6 Strike%

Showing no signs of slowing down as a top-tier closer. Use the last 365 days’ results as a template for expectations.

National League East

Atlanta Braves

Closer: Raisel Iglesias

  • 2025: 16.1 IP, 19:4 K:BB (20.8 K-BB%), 1.41 WHIP, 14.9 SwStr%, 69 Strike%
  • Last Statistical Year: 69.1 IP, 76:12 K:BB (24.3 K-BB%). 0.79 WHIP, 16.3 SwStr%, 70.8 Strike%

He has not performed well in terms of quality of contact this season, but his pedigree keeps him at the top of his hierarchy. Will Atlanta trade for his potential replacement if he does not bounce back?

Miami Marlins

Primary Save Share: Jesús Tinoco

  • 2025: 13.2 IP, 9:6 K:BB (5.3 K-BB%). 1.24 WHIP, 7.8 SwStr%, 61.8 Strike%
  • Last Statistical Year: 54.1 IP, 51:18 K:BB (15.1 K-BB%), 1.03 WHIP, 11 SwStr%, 64.7 Strike%

If Tinoco can carry over his last 365 days’ results for the remainder of the season, he could record 10 or more saves. Tread lightly if they do not.

New York Mets

Closer: Edwin Díaz

  • 2025: 17 IP, 24:8 K:BB (22.9 K-BB%), 1.12 WHIP, 14.9 SwStr%, 59.9 Strike%
  • Last Statistical Year: 54 IP, 83:22 K:BB (27.9 K-BB%). 1.09 WHIP, 17 SwStr%, 62.3 Strike%

As his dominant 2022 drifts from our memory banks, he’s still a very good closer, but that season may represent an outlier, not a level he can attain again.

Philadelphia Phillies

José Alvarado

  • 2025: 19.1 IP, 24:4 K:BB (24.4 K-BB%), 1.24 WHIP, 10.5 SwStr%, 65.1 Strike%
  • Last Statistical Year: 63.1 IP, 71:25 K:BB (17 K-BB%), 1.31 WHIP, 12.5 SwStr%, 61.5 Strike%
  • Last 14 Days: 4.2 IP, 3:2 K:BB (5 K-BB%), 1.50 WHIP, 7.5 SwStr%, 56.3 Strike%

Jordan Romano 

  • 2025: 15.1 IP, 17:6 K:BB (15.9 K-BB%), 1.57 WHIP, 12.9 SwStr%, 66 Strike%
  • Last 14 Days: 5 IP, 7:0 K:BB (38.9 K-BB%), 0.60 WHIP, 15.9 SwStr%, 68.3 Strike%

First, Rob Thomson’s “floating closer” caps the upside of any reliever for the Phillies. However, Romano has found his form in recent outings and could put together a burst of productivity like Craig Kimbrel did in 2023. Monitor both relievers’ outcomes closely over the next two weeks.

Washington Nationals

Closer: Kyle Finnegan

  • Last Statistcal Year: 63 IP, 39 saves, 60:23 K:BB (13.3 K-BB%), 1.48 WHIP, 10.2 SwStr%, 66.7 Strike%
  • 2025: 15.2 IP, 13 saves, 16:7 K:BB (13.2 K-BB%), 1.40 WHIP. 8.9 SwStr%, 63.2 Strike%

If there was a poster boy for not sexy but productive at closer, it’s Finnegan, the “finnisher.”

National League Central

Chicago Cubs

Ryan Pressly

  • 2025: 14.1 IP, 4 saves, 7:9 K:BB (-2.9 K-BB%), 1.88 WHIP, 7.1 SwStr%, 60.8 Strike%
  • Last Statistical Year: 55.2 IP, 8 saves, 42:21 K:BB (8.8 K-BB%), 1.37 WHIP, 11 SwStr%, 64.5 Strike%

Porter Hodge

  • 2025: 18.1 IP, 2 saves, 18:11 K:BB (8.8 K-BB%), 1.53 WHIP, 12 SwStr%, 63.8 Strike%
  • Last Statistical Year: 61.1 IP, 11 saves, 70:30 K:BB (16.4 K-BB%), 1.08 WHIP, 13.2 SwStr%, 62.7 Strike%

Neither reliever has taken control of the closer position, making this one of the most unsettled bullpens in baseball. Can Pressly work in the strike zone and induce more whiffs? Will Hodge reduce his walk rates and not implode on occasion?

Cincinnati Reds

Closer: Emilio Pagán

  • 2025: 20 IP, 22:6 K:BB (20.8 K-BB%), 0.85 WHIP, 15 SwStr%, 67.2 Strike%
  • Last Statistical Year: 38.2 IP, 10 saves, 41:10 K:BB (20.3 K-BB%), 1.06 WHIP, 14.2 SwStr%, 68.9 Strike%
  • Last 14 Days: 5.2 IP, 1 saves, 8:4 K:BB (14.8 K-BB%), 1.76 WHIP, 16.4 SwStr%, 62.7 Strike%

Trusting Pagán comes with apprehension, but Terry Francona is loyal, helping his cause. Tony Santillan may get some ancillary save chances soon, and Luis Mey has performed well in lower-leveraged outings. Can he do the same in high-leverage ones?

Milwaukee Brewers

Closer: Trevor Megill

  • 2025: 12.1 IP, 5 saves, 15:7 K:BB (15.1 K-BB%), 1.30 WHIP, 13.5 SwStr%, 63 Strike%
  • Last Statistical Year: 49 IP, 22 saves, 57:18 K:BB (19.6 K-BB%), 1.10 WHIP, 14.3 SwStr%, 66.6 Strike%

His usage patterns and results have been sporadic. Can he log more than 50 innings throughout a season?

Pittsburgh Pirates

Dennis Santana

  • 2025: 18.1 IP, 4 saves, 11:3 K:BB (11.8 K-BB%), 0.87 WHIP, 14.5 SwStr%, 71.9 Strike%
  • Last Statistical Year: 72.1 IP, 5 saves, 67:17 K:BB (17.6 K-BB%), 1.01 WHIP, 14.4 SwStr%, 68.6 Strike%
  • Last 14 Days: 6 IP, 1 save, 4:0 K:BB (18.2 K-BB%), 0.83 WHIP, 13.2 SwStr%, 72.4 Strike%

David Bednar

  • 2025: 12.2 IP, 3 saves, 19:3 K:BB (29.1 K-BB%), 1.34 WHIP, 16.4 SwStr%, 67.1 Strike%
  • Last Statistical Year: 54.1 IP, 57:26 K:BB (12.8 K-BB%), 1.40 WHIP, 14 SwStr%, 66 Strike%
  • Last 14 Days: 5.2 IP, 0 saves, 10:0 K:BB (43.5 K-BB%), 0.88 WHIP, 13.7 SwStr%, 68.4 Strike%

Under Don Kelly, Santana has appeared in the ninth inning four times, but Bednar did receive a save chance against the Mets. This may be a match-up-based situation until clarity presents itself.

St. Louis Cardinals

Closer: Ryan Helsley

  • 2025: 15 IP, 8 saves, 16:10 K:BB (9 K-BB%), 1.53 WHIP, 12.8 SwStr%, 64 Strike%
  • Last Statistical Year: 62.1 IP, 74:22 K:BB (17.7 K-BB%), 1.28 WHIP, 16.2 SwStr%, 66.7 Strike%

Like Díaz above, his outlier season may have already taken place. Use his last 365 days’ results as a closer representation of his skills going forward.

National League West

Arizona Diamondbacks

A.J. Puk

  • Last Statistical Year: 65.1 IP, 7 saves, 88:13 K:BB (29.9 K-BB%), 0.81 WHIP, 16.3 SwStr%, 69.8 Strike%

Justin Martinez

  • 2025: 10 IP, 3 saves, 11:6 K:BB (11.9 K-BB%), 1.10 WHIP, 10.4 SwStr%, 59.1 Strike%
  • Last Statistical Year: 70 IP, 11 saves, 86:33 K:BB (17.8 K-BB%), 1.29 WHIP, 13.2 SwStr%, 62.4 Strike%

Shelby Miller

  • 2025: 18.2 IP, 3 saves, 21:7 K:BB (18.4 K-BB%), 1.02 WHIP, 13.1 SwStr%, 66.3 Strike%
  • Last Statistical Year: 58 IP, 5 saves, 55:14 K:BB (17.7 K-BB%), 0.97 WHIP, 11.6 SwStr%, 66.9 Strike%

It’s been a revolving door during save chances this season, and things may remain unsettled until Puk can return. Miller has been surprisingly solid and may stay in the mix even after the injured relievers return from the injured list.

Colorado Rockies

Seth Halvorsen 

  • 2025: 16.2 IP, 1 save, 17:7 K:BB (14.5 K-BB%), 1.26 WHIP, 16 SwStr%, 63.9 Strike%
  • Last Statistical Year: 29 IP, 3 saves, 30:9 K:BB (18.3 K-BB%), 1.07 WHIP, 14.9 SwStr%, 65.2 Strike%

Zach Agnos

  • 2025: 11 IP, 2 saves, 5:1 K:BB (9.1 K-BB%), 1.09 WHIP, 16.5 SwStr%, 62.2 Strike%

Just when it seemed like Agnos was taking over the preferred save share, the team changed managers, coinciding with Halvorsen’s improved performance in recent outings. He’s the preferred option right now for the few save chances this team generates.

Los Angeles Dodgers

Primary Save Share: Tanner Scott

  • 2025: 19.2 IP, 9 saves, 19:1 K:BB (26.1 K-BB%), 0.76 WHIP, 12.9 SwStr%, 73 Strike%
  • Last Statistical Year: 75.2 IP, 27 saves, 87:21 K:BB (22.8 K-BB%). 0.95 WHIP, 16.6 SwStr%, 70 Strike%

It’s been an intriguing transformation for Scott with his new team. He’s produced fewer strikeouts but is working with better command and has been very productive while receiving the “brunt” of save chances.

San Diego Padres

Closer: Robert Suarez

  • 2025: 19 IP, 15 saves, 21:8 K:BB (18.6 K-BB%), 0.79 WHIP, 11.2 SwStr%, 66.4 Strike%
  • Last Statistical Year: 65.2 IP, 64:20 K:BB (16.6 K-BB%), 1.10 WHIP, 11.9 SwStr%, 66.5 Strike%

His results tailed off in the second half of last year, and he proved his critics (me included) wrong with a hot start this season. However, note his previous 365-day WHIP and K-BB percentage; these are new baselines as we move forward.

San Francisco Giants

Closer: Ryan Walker 

  • 2025: 15 IP, 7 saves, 15:7 K:BB (11.6 K-BB%), 1.53 WHIP, 7.5 SwStr%, 59.9 Strike%
  • Last Statistical Year: 73 IP, 17 saves, 84:21 K:BB (22 K-BB%), 0.95 WHIP, 10.9 SwStr%, 65.9 Strike%

Camilo Doval

  • 2025: 19.2 IP, 5 saves, 14:7 K:BB (9.5 K-BB%). 0.76 WHIP, 12.8 SwStr%, 62.3 Strike%
  • Last Statistical Year: 62.2 IP, 22 saves, 71:35 K:BB (13 K-BB%), 1.37 WHIP, 13.3 SwStr%, 60.3 Strike%

In a terrific piece of irony, it feels like neither reliever performs well when the other does. Walker remains the closer, but if he struggles with contact in the coming weeks, his hold on the role will remain tenuous.

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Thanks for being part of the Closer Monkey community. Stay safe, and be well.

Statistical Credits:

Fangraphs.com

Baseball-Reference.com

BaseballSavant.com