Major League Baseball Reliever of the Year Award

Major League Baseball (MLB) annually honors its best relief pitchers in the American League (AL) and National League (NL) with the Mariano Rivera AL Reliever of the Year Award and Trevor Hoffman NL Reliever of the Year Award, respectively. The awards are named after former relievers Mariano Rivera and Trevor Hoffman, who played their entire careers in the respective leagues.^[1] First issued in 2014, the awards replaced the Delivery Man of the Year Award, which had been presented since 2005.^[2]

Reliever of the Year Award

The presentation of the trophies to the 2015 winners
Sport	Baseball
League	Major League Baseball
Awarded for	Best relief pitcher in the American League and National League
Presented by	Major League Baseball
History
First award	2014
Most wins	Josh Hader (3)
Most recent	Emmanuel Clase (AL) Ryan Helsley (NL)

The Reliever of the Year Awards are based on the votes of a panel of retired relievers.^[2] Each voter selects three pitchers for each league based solely on their performance in the regular season; a 5-3-1 weighted point system is used to determine the winner.^[3] At its inception in 2014, the panel consisted of the top five relievers in career saves at the time—Rivera, Hoffman, Lee Smith, John Franco, and Billy Wagner—and the four living relief pitchers who were in the Hall of Fame: Dennis Eckersley, Rollie Fingers, Goose Gossage, and Bruce Sutter.

The Reliever of the Year Award winners had all been closers until 2018 when Josh Hader of the Milwaukee Brewers won as a setup man; he later won the NL title in 2019 and 2021 as a closer. In 2019, both winners of the awards were also named in the inaugural All-MLB teams. In 2020, the Brewers' Devin Williams became the first rookie, and the first reliever with no saves, to win the award in either league.^[4]

Since 2017, MLB has also issued a Reliever of the Month Award.^[5]

Winners

Trevor Hoffman NL Reliever of the Year

Namesake of the NL award, Trevor Hoffman

Year	Player	Team	SV	ERA	WHIP	K	IP	Ref
2014	Craig Kimbrel	Atlanta Braves	47	1.61	0.91	95	61+2⁄3	[3]
2015	Mark Melancon	Pittsburgh Pirates	51	2.23	0.93	62	76+2⁄3	[6]
2016	Kenley Jansen	Los Angeles Dodgers	47	1.83	0.67	104	68+2⁄3	[7]
2017	Kenley Jansen (2)	Los Angeles Dodgers	41	1.32	0.75	109	68+1⁄3	[8]
2018	Josh Hader	Milwaukee Brewers	12	2.43	0.81	143	81+1⁄3	[9]
2019	Josh Hader (2)	Milwaukee Brewers	37	2.62	0.81	138	75+2⁄3	[10]
2020	Devin Williams	Milwaukee Brewers	0	0.33	0.63	53	27	[4]
2021	Josh Hader (3)	Milwaukee Brewers	34	1.23	0.84	102	58+2⁄3	[11]
2022	Edwin Díaz (2)	New York Mets	32	1.31	0.839	118	62	[12]
2023	Devin Williams (2)	Milwaukee Brewers	36	1.53	0.920	87	58+2⁄3	[13]
2024	Ryan Helsley	St. Louis Cardinals	49	2.04	1.100	79	66+1⁄3	[14]

Mariano Rivera AL Reliever of the Year

Namesake of the AL award, Mariano Rivera

Year	Player	Team	SV	ERA	WHIP	K	IP	Ref
2014	Greg Holland	Kansas City Royals	46	1.44	0.91	90	62+1⁄3	[3]
2015	Andrew Miller	New York Yankees	36	2.04	0.86	100	61+2⁄3	[15]
2016	Zack Britton	Baltimore Orioles	47	0.54	0.84	74	67	[7]
2017	Craig Kimbrel (2)	Boston Red Sox	35	1.43	0.68	126	69	[8]
2018	Edwin Díaz	Seattle Mariners	57	1.96	0.79	124	73+1⁄3	[9]
2019	Aroldis Chapman	New York Yankees	37	2.21	1.11	85	57	[10]
2020	Liam Hendriks	Oakland Athletics	14	1.78	0.67	37	25+1⁄3	[4]
2021	Liam Hendriks (2)	Chicago White Sox	38	2.54	0.73	113	71	[11]
2022	Emmanuel Clase	Cleveland Guardians	42	1.36	0.729	77	72+2⁄3	[12]
2023	Félix Bautista	Baltimore Orioles	33	1.48	0.918	110	61	[13]
2024	Emmanuel Clase (2)	Cleveland Guardians	47	0.61	0.660	66	74+1⁄3	[14]

See also

• Baseball portal

• Sporting News Relief Pitcher of the Year Award (2013–present; one in each league)
• Sporting News Reliever of the Year Award (1960–2010; one in each league)
• Rolaids Relief Man Award (1976–2012; one in each league)
• Baseball awards
• List of MLB awards