Jack Kochanowicz has the highest WHIP this season, with a WHIP of 1.55.

Interpreted as:

worst in whip with a minimum of 1 IP per team game by a player this regular season

	NAME	WHIP	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	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	Jack Kochanowicz J. Kochanowicz	1.55	2025	LAA	15	3	8	.273	15	5.38	58	0	0	0	77.0	83	46	47	15	36	5	0	2	337	3	6.78	4.21	1.61	1.75	17.2	10.7	.305	5.49	132	5.69	136	9.70	-12.4
2	Yusei Kikuchi Y. Kikuchi	1.43	2025	LAA	16	2	6	.250	16	3.01	87	0	0	0	89.2	85	30	35	11	43	1	0	3	385	3	8.73	4.32	2.02	1.10	22.6	11.2	.305	3.51	74	4.19	100	8.53	0.1
3	José Soriano J. Soriano	1.42	2025	LAA	16	5	5	.500	16	3.39	80	0	0	0	93.0	89	35	38	3	43	2	0	0	395	3	7.74	4.16	1.86	0.29	20.3	10.9	.322	3.68	83	3.21	77	8.61	9.9
4	Luis L. Ortiz L. L. Ortiz	1.41	2025	CLE	15	4	8	.333	15	4.30	91	0	0	0	81.2	74	39	40	10	41	1	0	0	354	0	10.03	4.52	2.22	1.10	25.7	11.6	.303	4.41	109	3.97	99	8.16	0.5
5	Bailey Ober B. Ober	1.40	2025	MIN	15	4	4	.500	15	4.54	62	1	0	0	79.1	90	40	41	14	21	3	0	0	348	1	7.03	2.38	2.95	1.59	17.8	6.0	.306	4.65	114	4.70	116	10.21	-5.6
6	Zac Gallen Z. Gallen	1.40	2025	AZ	16	5	8	.385	16	5.60	86	0	0	0	91.2	87	57	60	17	41	2	0	1	399	1	8.44	4.03	2.10	1.67	21.6	10.3	.277	5.89	135	5.00	128	8.54	-11.7
7	Tyler Anderson T. Anderson	1.40	2025	LAA	15	2	5	.286	15	4.56	65	0	0	0	81.0	82	41	45	15	31	3	0	3	357	5	7.22	3.44	2.10	1.67	18.2	8.7	.276	5.00	112	5.12	122	9.11	-8.1
8	Brandon Pfaadt B. Pfaadt	1.39	2025	AZ	16	8	5	.615	16	5.49	65	0	0	0	80.1	92	49	51	16	20	9	0	1	355	2	7.28	2.24	3.25	1.79	18.3	5.6	.310	5.71	133	5.12	131	10.31	-11.3
9	Jesús Luzardo J. Luzardo	1.37	2025	PHI	16	7	3	.700	16	4.08	104	0	0	0	90.1	95	41	44	7	29	1	0	0	385	2	10.36	2.89	3.59	0.70	27.0	7.5	.361	4.38	100	2.76	67	9.46	13.3
10	Michael Lorenzen M. Lorenzen	1.37	2025	KCR	15	4	7	.364	15	4.81	69	0	0	0	82.1	85	44	46	14	28	2	0	0	357	10	7.54	3.06	2.46	1.53	19.3	7.8	.291	5.03	115	4.69	115	9.29	-5.7
11	Taj Bradley T. Bradley	1.35	2025	TBR	15	4	5	.444	15	4.95	73	0	0	0	80.0	74	44	52	12	34	4	0	0	343	0	8.21	3.83	2.15	1.35	21.3	9.9	.282	5.85	129	4.61	117	8.33	-6.2
12	Dean Kremer D. Kremer	1.34	2025	BAL	16	6	7	.462	15	4.60	72	0	0	0	90.0	97	46	48	12	24	1	0	0	384	5	7.20	2.40	3.00	1.20	18.8	6.3	.309	4.80	117	4.03	101	9.70	-0.5
13	Luis Severino L. Severino	1.34	2025	ATH	16	2	7	.222	16	4.42	66	0	0	0	95.2	98	47	50	7	30	5	0	1	416	1	6.21	2.82	2.20	0.66	15.9	7.2	.295	4.70	111	3.73	92	9.22	3.5
14	JP Sears	1.33	2025	ATH	16	5	7	.417	16	5.44	63	0	0	0	81.0	89	49	49	18	19	5	0	0	351	1	7.00	2.11	3.32	2.00	17.9	5.4	.289	5.44	136	5.28	130	9.89	-11
15	Shane Baz S. Baz	1.33	2025	TBR	15	7	3	.700	15	4.79	77	0	0	0	82.2	76	44	44	14	34	5	0	0	352	0	8.38	3.70	2.26	1.52	21.9	9.7	.279	4.79	125	4.82	122	8.27	-8.4
16	Randy Vásquez R. Vásquez	1.33	2025	SDP	16	3	4	.429	16	3.60	45	0	0	0	80.0	69	32	33	12	37	6	0	0	343	2	5.06	4.16	1.22	1.35	13.1	10.8	.235	3.71	92	5.50	138	7.76	-13.7
17	Mitchell Parker M. Parker	1.32	2025	WSH	15	4	8	.333	15	4.59	58	0	0	0	80.1	75	41	45	9	31	3	0	0	344	2	6.50	3.47	1.87	1.01	16.9	9.0	.272	5.04	113	4.34	107	8.40	-2.4
18	Kyle Hendricks K. Hendricks	1.32	2025	LAA	15	5	6	.455	15	4.83	55	0	0	0	82.0	85	44	47	14	23	4	0	3	351	0	6.04	2.52	2.39	1.54	15.7	6.6	.278	5.16	118	4.93	118	9.33	-6.5
19	Andre Pallante A. Pallante	1.31	2025	STL	15	5	3	.625	15	4.48	58	0	0	0	82.1	81	41	43	11	27	1	0	0	352	5	6.34	2.95	2.15	1.20	16.5	7.7	.275	4.70	112	4.41	112	8.85	-4.4
20	Brady Singer B. Singer	1.30	2025	CIN	15	7	5	.583	15	4.13	67	0	0	0	80.2	72	37	40	9	33	3	0	0	341	0	7.48	3.68	2.03	1.00	19.6	9.7	.275	4.46	95	4.19	98	8.03	0.8
21	Erick Fedde E. Fedde	1.30	2025	STL	15	3	6	.333	15	3.54	55	1	1	0	84.0	73	33	36	6	36	2	0	0	353	1	5.89	3.86	1.53	0.64	15.6	10.2	.264	3.86	88	4.04	102	7.82	-1
22	Dylan Cease D. Cease	1.29	2025	SDP	16	3	6	.333	16	4.43	109	0	0	0	87.1	80	43	45	8	33	3	0	1	373	2	11.23	3.40	3.30	0.82	29.2	8.8	.327	4.64	113	2.99	75	8.24	9.7
23	Chad Patrick C. Patrick	1.28	2025	MIL	16	3	7	.300	15	3.50	76	0	0	0	79.2	76	31	31	8	26	4	0	1	337	0	8.59	2.94	2.92	0.90	22.6	7.7	.305	3.50	86	3.59	88	8.59	4.2
24	Chris Bassitt C. Bassitt	1.26	2025	TOR	16	7	3	.700	16	3.61	90	0	0	0	92.1	95	37	38	10	21	6	0	0	393	2	8.77	2.05	4.29	0.97	22.9	5.3	.320	3.70	91	3.40	84	9.26	6.8
25	Nick Martinez N. Martinez	1.25	2025	CIN	16	4	8	.333	15	4.45	62	0	0	0	85.0	87	42	43	13	19	4	0	0	351	5	6.56	2.01	3.26	1.38	17.7	5.4	.292	4.55	103	4.40	103	9.21	-1