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Bullpen

Save conversion, holds and staff rate stats by club, sorted by conversion rate.

What this is and is not

The MLB Stats API publishes these at team level. Saves, blown saves and holds are relief outcomes; ERA and WHIP here are whole-staff figures including starters, and are labelled as such rather than presented as a bullpen-only number we cannot source.

Team	Staff ERA	Staff WHIP	Holds	SV	BS	Conv
Houston Astros	4.52	1.35	80	47	11	81.0%
Toronto Blue Jays	3.91	1.29	93	50	15	76.9%
Tampa Bay Rays	3.81	1.15	108	55	17	76.4%
Boston Red Sox	3.63	1.24	86	41	13	75.9%
Cleveland Guardians	3.80	1.27	102	40	14	74.1%
Milwaukee Brewers	3.56	1.19	77	46	18	71.9%
Minnesota Twins	4.67	1.38	95	40	16	71.4%
Atlanta Braves	3.58	1.24	100	46	19	70.8%
San Diego Padres	3.88	1.28	91	43	18	70.5%
Texas Rangers	4.29	1.31	72	40	18	69.0%
Arizona Diamondbacks	4.10	1.28	78	37	17	68.5%
Los Angeles Dodgers	3.67	1.16	92	43	20	68.3%
Philadelphia Phillies	3.98	1.27	66	39	19	67.2%
Baltimore Orioles	4.15	1.34	79	41	21	66.1%
Cincinnati Reds	4.73	1.43	81	39	22	63.9%
Miami Marlins	4.10	1.28	80	31	19	62.0%
New York Mets	4.19	1.31	68	29	18	61.7%
St. Louis Cardinals	4.31	1.35	92	43	28	60.6%
New York Yankees	3.20	1.16	83	41	27	60.3%
Pittsburgh Pirates	4.13	1.30	69	33	22	60.0%
Seattle Mariners	4.21	1.25	76	33	22	60.0%
Kansas City Royals	4.64	1.39	73	35	24	59.3%
Chicago White Sox	4.13	1.31	56	37	26	58.7%
Colorado Rockies	5.50	1.52	59	32	23	58.2%
Athletics	5.35	1.49	83	37	27	57.8%
Chicago Cubs	4.22	1.27	51	32	26	55.2%
San Francisco Giants	4.34	1.36	81	28	24	53.8%
Detroit Tigers	3.67	1.22	70	28	31	47.5%
Washington Nationals	4.75	1.40	73	34	38	47.2%
Los Angeles Angels	4.20	1.34	82	22	25	46.8%

Source: team pitching · pulled 2026-09-10 21:13