Addie Joss has the lowest career WHIP, with a WHIP of 0.97.

Interpreted as:

lowest career whip with a minimum of 1500 IP by a player in MLB history

	NAME	WHIP	IP	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	Addie Joss A. Joss	0.97	2327.0	286	160	97	.623	260	1.89	920	234	45	5	1,888	488	730	19	364	58	22		8,891	28	3.56	1.41	2.53	0.07	10.3	4.1	.248	2.82	70	2.25	86	7.30	88.8
2	Jacob deGrom J. deGrom	0.99	1539.2	248	96	65	.596	248	2.57	1,851	4	2	0	1,173	440	477	146	345	25	0	13	6,045	30	10.82	2.02	5.37	0.85	30.6	5.7	.279	2.79	66	2.70	66	6.86	239.4
3	Ed Walsh E. Walsh	1.00	2964.1	430	195	126	.607	315	1.82	1,736	250	57	35	2,346	598	873	23	617	52	105		11,413	76	5.27	1.87	2.81	0.07	15.2	5.4	.259	2.65	69	2.02	79	7.12	164.3
4	Clayton Kershaw C. Kershaw	1.02	2855.1	455	223	96	.699	451	2.53	3,052	25	15	0	2,193	804	881	235	713	46	1	28	11,279	108	9.62	2.25	4.28	0.74	27.1	6.3	.271	2.78	65	2.85	70	6.91	375.1
5	John Ward J. Ward	1.04	2469.2	293	164	103	.614	262	2.10	920	245	24	3	2,324	576	1,185	26	253		32		10,164	144	3.35	0.92	3.64	0.09	9.1	2.5		4.32	82	2.43	96	8.47	9.1
6	Chris Sale C. Sale	1.05	2084.0	393	145	88	.622	312	3.01	2,579	16	3	12	1,692	697	750	213	487	130	25	15	8,389	48	11.14	2.10	5.30	0.92	30.7	5.8	.297	3.24	70	2.87	68	7.31	303.3
7	Pedro Martinez P. Martinez	1.05	2827.1	476	219	100	.687	409	2.93	3,154	46	17	3	2,221	919	1,006	239	760	141	23	30	11,394	62	10.04	2.42	4.15	0.76	27.7	6.7	.279	3.20	66	2.91	68	7.07	454.6
8	Christy Mathewson C. Mathewson	1.06	4788.2	636	373	188	.665	552	2.13	2,507	435	79	30	4,219	1,135	1,620	89	848	59	73		18,913	115	4.71	1.59	2.96	0.17	13.3	4.5	.268	3.04	75	2.26	76	7.93	363
9	Walter Johnson W. Johnson	1.06	5914.1	802	417	279	.599	666	2.17	3,509	531	110	34	4,913	1,424	1,902	97	1,363	205	127		23,405	154	5.34	2.07	2.57	0.15	15.0	5.8	.264	2.89	68	2.42	76	7.48	472.8
10	Mordecai Brown M. Brown	1.07	3172.1	481	239	130	.648	332	2.06	1,375	271	55	49	2,708	725	1,044	43	673	61	138		12,422	61	3.90	1.91	2.04	0.12	11.1	5.4	.259	2.96	71	2.42	83	7.68	161.9
11	Max Scherzer M. Scherzer	1.08	2963.0	483	220	117	.653	474	3.22	3,489	12	5	0	2,433	1,059	1,132	354	779	114	2	20	11,987	80	10.60	2.37	4.48	1.08	29.1	6.5	.287	3.44	77	3.23	78	7.39	302.5
12	Gerrit Cole G. Cole	1.09	1954.0	317	153	80	.657	317	3.18	2,251	8	5	0	1,627	690	740	217	500	61	0	8	7,861	58	10.37	2.30	4.50	1.00	28.6	6.4	.292	3.41	79	3.16	77	7.49	213.5
13	Tommy Bond T. Bond	1.09	2779.2	322	193	115	.627	314	2.25	860	294	35	0	2,857	695	1,339	32	178		11		11,386	120	2.78	0.58	4.83	0.10	7.6	1.6	.274	4.34	89	2.38	95	9.25	32.3
14	Babe Adams B. Adams	1.09	2995.1	482	194	140	.581	354	2.76	1,036	205	44	16	2,841	917	1,133	67	430	47	90		11,947	26	3.11	1.29	2.41	0.20	8.7	3.6	.268	3.40	86	2.72	83	8.54	178.7
15	Juan Marichal J. Marichal	1.10	3507.0	471	243	142	.631	457	2.89	2,303	244	52	2	3,153	1,126	1,329	320	709	40	11	82	14,236	51	5.91	1.82	3.25	0.82	16.2	5.0	.261	3.41	81	3.04	88	8.09	154.8
16	George Bradley G. Bradley	1.10	2404.1	287	138	125	.525	265	2.50	611	245	28	2	2,469	668	1,392	42	179		22		10,119	166	2.29	0.67	3.41	0.16	6.0	1.8		5.21	92	2.68	103	9.24	-36.8
17	Rube Waddell R. Waddell	1.10	2961.1	407	193	143	.574	340	2.16	2,316	261	50	5	2,460	711	1,063	37	803	115	54		11,717	74	7.04	2.44	2.88	0.11	19.8	6.9	.287	3.23	75	2.03	71	7.48	262
18	Larry Corcoran L. Corcoran	1.10	2392.1	277	177	89	.665	268	2.36	1,103	256	22	2	2,147	626	1,235	68	496	2	9		10,001	113	4.15	1.87	2.22	0.26	11.0	5.0	.250	4.65	79	2.99	97	8.08	41
19	Deacon Phillippe D. Phillippe	1.11	2607.0	372	189	109	.634	289	2.59	929	242	27	12	2,518	749	1,071	41	363	59	72		10,380	45	3.21	1.25	2.56	0.14	8.9	3.5	.276	3.70	85	2.60	82	8.69	156.8
20	Sandy Koufax S. Koufax	1.11	2324.1	397	165	87	.655	314	2.76	2,396	137	40	9	1,754	713	806	204	817	18	44	48	9,497	87	9.28	3.16	2.93	0.79	25.2	8.6	.256	3.12	75	2.69	75	6.79	226.6
21	Ed Morris E. Morris	1.11	2678.0	311	171	122	.584	307	2.82	1,217	297	29	1	2,468	838	1,312	42	498	25	4		11,073	112	4.09	1.67	2.44	0.14	11.0	4.5	.262	4.41	87	2.91	92	8.29	34.1
22	Will White W. White	1.11	3542.2	403	229	166	.580	402	2.28	1,041	394	36	0	3,440	896	1,844	65	496		1		14,951	221	2.64	1.26	2.10	0.17	7.0	3.3	.254	4.68	83	2.98	108	8.74	-109.3
23	Chief Bender C. Bender	1.11	3017.0	459	212	127	.625	334	2.46	1,711	255	40	34	2,645	823	1,108	40	712	102	112		11,895	79	5.10	2.12	2.40	0.12	14.4	6.0	.279	3.31	88	2.29	83	7.89	145.9
24	Charlie Ferguson C. Ferguson	1.12	1514.2	183	99	64	.607	170	2.67	728	165	13	4	1,402	450	793	42	290	11	12		6,310	64	4.33	1.72	2.51	0.25	11.5	4.6	.260	4.71	85	3.12	92	8.33	42.5
25	Terry Larkin T. Larkin	1.12	1567.1	176	89	80	.527	176	2.43	406	172	9	0	1,627	424	922	12	124		0		6,659	84	2.33	0.71	3.27	0.07	6.1	1.9		5.29	97	2.52	100	9.34	-7.4