Aroldis Chapman had the lowest WHIP with 30.0+ innings pitched this season, with a WHIP of 0.70.

Interpreted as:

lowest whip among players with 30+ ip this regular season

	NAME	WHIP	IP	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Aroldis Chapman A. Chapman	0.70	61.1	2025	BOS	67	5	3	.625	0	1.17	85	0	0	32	28	8	9	3	15	0	43	0	228	6	12.47	2.20	5.67	0.44	37.3	6.6	.200	1.32	27	1.73	41	4.11	16.8
2	Shawn Armstrong S. Armstrong	0.81	74.0	2025	TEX	71	4	3	.571	2	2.31	74	0	0	9	40	19	21	5	20	6	22	0	284	3	9.00	2.43	3.70	0.61	26.1	7.0	.196	2.55	57	3.06	72	4.86	9.7
3	Taylor Clarke T. Clarke	0.85	55.1	2025	KCR	51	1	1	.500	0	3.25	44	0	0	1	38	20	20	8	9	1	15	0	206	5	7.16	1.46	4.89	1.30	21.4	4.4	.208	3.25	76	3.96	95	6.18	1.3
4	Nathan Eovaldi N. Eovaldi	0.85	130.0	2025	TEX	22	11	3	.786	22	1.73	129	1	1	0	90	25	28	10	21	7	0	1	496	6	8.93	1.45	6.14	0.69	26.0	4.2	.243	1.94	42	2.79	66	6.23	20.8
5	Josh Hader J. Hader	0.85	52.2	2025	HOU	48	6	2	.750	0	2.05	76	0	0	28	29	12	16	8	16	2	41	1	206	2	12.99	2.73	4.75	1.37	36.9	7.8	.202	2.73	51	3.24	79	4.96	5.2
6	Dennis Santana D. Santana	0.87	70.1	2025	PIT	70	4	5	.444	0	2.18	60	0	0	16	44	17	18	5	17	3	34	0	270	0	7.68	2.18	3.53	0.64	22.2	6.3	.211	2.30	51	3.20	77	5.63	7.3
7	Gabe Speier G. Speier	0.87	62.0	2025	SEA	76	4	3	.571	0	2.61	82	0	0	0	43	18	19	5	11	5	4	1	243	1	11.90	1.60	7.45	0.73	33.7	4.5	.271	2.76	68	2.31	58	6.24	12.1
8	Edwin Díaz E. Díaz	0.87	66.1	2025	NYM	62	6	3	.667	0	1.63	98	0	0	28	37	12	14	4	21	8	48	0	258	7	13.30	2.85	4.67	0.54	38.0	8.1	.260	1.90	40	2.27	55	5.02	13.5
9	AJ Blubaugh	0.88	32.0	2025	HOU	11	3	1	.750	3	1.69	35	0	0	0	17	6	11	6	11	0	2	0	124	0	9.84	3.09	3.18	1.69	28.2	8.9	.153	3.09	42	4.41	107	4.78	-1
10	Matt Svanson M. Svanson	0.88	60.1	2025	STL	39	4	0	1.000	0	1.94	68	0	0	0	33	13	14	3	20	4	10	0	234	1	10.14	2.98	3.40	0.45	29.1	8.5	.216	2.09	47	2.71	67	4.92	9.1
11	Caleb Thielbar C. Thielbar	0.88	58.0	2025	CHC	67	3	4	.429	0	2.64	56	0	0	1	38	17	17	5	13	0	4	1	220	0	8.69	2.02	4.31	0.78	25.5	5.9	.226	2.64	65	2.99	74	5.90	6.9
12	Randy Rodríguez R. Rodríguez	0.89	50.2	2025	SFG	50	3	5	.375	0	1.78	67	0	0	4	34	10	12	4	11	4	15	0	198	2	11.90	1.95	6.09	0.71	33.8	5.6	.268	2.13	43	2.40	60	6.04	9.1
13	Tarik Skubal T. Skubal	0.89	195.1	2025	DET	31	13	6	.684	31	2.21	241	1	1	0	141	48	55	18	33	5	0	0	748	3	11.10	1.52	7.30	0.83	32.2	4.4	.273	2.53	55	2.44	59	6.50	36.9
14	Steven Okert S. Okert	0.89	71.2	2025	HOU	68	3	2	.600	1	3.01	84	0	0	1	45	24	25	6	19	2	7	1	276	0	10.55	2.39	4.42	0.75	30.4	6.9	.236	3.14	74	2.75	67	5.65	11.1
15	Adrian Morejon A. Morejon	0.90	73.2	2025	SDP	75	13	6	.684	0	2.08	70	0	0	3	49	17	23	2	17	0	9	3	286	2	8.55	2.08	4.12	0.24	24.5	5.9	.239	2.81	51	2.27	56	5.99	15
16	Trevor Rogers T. Rogers	0.90	109.2	2025	BAL	18	9	3	.750	18	1.81	103	1	0	0	70	22	23	6	29	2	0	0	423	0	8.45	2.38	3.55	0.49	24.3	6.9	.226	1.89	45	2.81	69	5.74	15.8
17	Robert Suarez R. Suarez	0.90	69.2	2025	SDP	70	4	6	.400	0	2.97	75	0	0	40	47	23	24	6	16	2	56	2	269	1	9.69	2.07	4.69	0.78	27.9	5.9	.241	3.10	73	2.87	70	6.07	9.5
18	Mason Miller M. Miller	0.91	61.2	2025	TOT	60	1	2	.333	0	2.63	104	0	0	22	28	18	19	5	28	1	37	2	234	3	15.18	4.09	3.71	0.73	44.4	12.0	.240	2.77	64	2.22	53	4.09	13.2
19	Brandon Woodruff B. Woodruff	0.91	64.2	2025	MIL	12	7	2	.778	12	3.20	83	0	0	0	45	23	26	9	14	3	0	0	257	1	11.55	1.95	5.93	1.25	32.3	5.4	.243	3.62	76	3.16	76	6.26	7.2
20	Emilio Pagán E. Pagán	0.92	68.2	2025	CIN	70	2	4	.333	0	2.88	81	0	0	32	41	22	26	10	22	2	56	0	270	1	10.62	2.88	3.68	1.31	30.0	8.1	.200	3.41	65	3.71	85	5.37	5
21	Jacob deGrom J. deGrom	0.92	172.2	2025	TEX	30	12	8	.600	30	2.97	185	0	0	0	122	57	57	26	37	3	0	0	669	3	9.64	1.93	5.00	1.36	27.7	5.5	.230	2.97	73	3.64	86	6.36	11.7
22	Bubba Chandler B. Chandler	0.93	31.1	2025	PIT	7	4	1	.800	4	4.02	31	0	0	1	25	14	14	2	4	3	1	0	124	1	8.90	1.15	7.75	0.57	25.0	3.2	.274	4.02	94	2.65	64	7.18	5.2
23	Bryan Woo B. Woo	0.93	186.2	2025	SEA	30	15	7	.682	30	2.94	198	0	0	0	137	61	64	26	36	4	0	0	731	3	9.55	1.74	5.50	1.25	27.1	4.9	.238	3.09	77	3.46	86	6.61	11.4
24	John Curtiss J. Curtiss	0.93	36.2	2025	AZ	30	3	2	.600	0	3.93	24	0	0	1	29	16	18	5	5	0	12	0	141	0	5.89	1.23	4.80	1.23	17.0	3.5	.224	4.42	92	4.00	100	7.12	0
25	Brandon Walter B. Walter	0.93	53.2	2025	HOU	9	1	3	.250	9	3.35	52	0	0	0	46	20	20	10	4	3	0	0	212	0	8.72	0.67	13.00	1.68	24.5	1.9	.252	3.35	83	4.00	97	7.71	0.7