500, with 0.04.

Interpreted as:

most 300/400/500 seasons by a player

	NAME	300/400/(SEAS/500)	SEAS	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Nolan Ryan N. Ryan	0.04	27	424	852	40	94	10	2	2	36	38	0	371	3	3	957	114	14	65	2	0	11	.110	.148	.134	.282	-28	-132.4	.135	-21	-130.1
2	Tommy John T. John	0.04	26	451	900	43	141	13	0	5	54	33	1	211	0	0	1,030	169	18	93	3	0	20	.157	.187	.188	.375	4	-104.9	.175	6	-109.4
3	Deacon McGuire D. McGuire	0.04	26	1,781	6,291	770	1,750	300	79	45	840	515	83	357	118		6,937	2,343	424	47				.278	.341	.372	.713	1031	52.1	.342	99	1.2
4	Jamie Moyer J. Moyer	0.04	25	236	400	24	51	5	0	0	15	35	1	152	0	0	502	56	5	64	2	0	5	.128	.199	.140	.339	-5	-64.7	.167	-12	-68.5
5	Rickey Henderson R. Henderson	0.04	25	3,081	10,961	2,295	3,055	510	66	297	1,115	2,190	98	1,694	1,406	335	13,346	4,588	873	30	67	61	172	.279	.401	.419	.820	2074	509.6	.372	132	507.9
6	Charlie Hough C. Hough	0.04	25	450	226	7	33	4	0	1	13	5	1	53	0	0	250	40	5	18	0	0	8	.146	.168	.177	.345	-4	-33.4	.160	-11	-33.8
7	Jim Kaat J. Kaat	0.04	25	840	1,251	117	232	44	5	16	106	63	7	367	5	1	1,362	334	65	34	7	1	14	.185	.227	.267	.494	59	-86.2	.226	36	-98.5
8	Eddie Collins E. Collins	0.04	25	2,826	9,949	1,821	3,315	438	187	47	1,300	1,499	77	468	741		12,037	4,268	672	512				.333	.424	.429	.853	2032	693.4	.409	144	619.7
9	Bobby Wallace B. Wallace	0.04	25	2,383	8,618	1,057	2,309	391	143	34	1,121	774	47	562	201		9,612	3,088	568	173				.268	.332	.358	.690	1198	72.5	.333	104	43.4
10	Omar Vizquel O. Vizquel	0.04	24	2,968	10,586	1,445	2,877	456	77	80	951	1,028	49	1,087	404	167	12,013	3,727	613	256	94	25	207	.272	.336	.352	.688	1283	-178.5	.310	83	-248.9
11	Roger Clemens R. Clemens	0.04	24	95	179	5	31	6	0	0	12	13	2	61	0	0	213	37	6	18	1	0	3	.173	.236	.207	.443	4	-22.6	.207	14	-23.7
12	Jesse Orosco J. Orosco	0.04	24	486	59	3	10	0	0	0	4	8	0	25	0	0	76	10	0	7	2	0	1	.169	.261	.169	.430	3	-6.2	.213	32	-6.1
13	Dennis Eckersley D. Eckersley	0.04	24	147	181	9	24	3	0	3	12	9	0	84	0	0	196	36	6	5	1	0	1	.133	.173	.199	.372	0	-22.4	.171	-8	-24.1
14	Rick Dempsey R. Dempsey	0.04	24	1,765	4,692	525	1,093	223	12	96	471	592	18	736	20	19	5,407	1,628	331	63	42	13	131	.233	.319	.347	.666	550	-54.6	.306	91	-58.4
15	Carlton Fisk C. Fisk	0.04	24	2,499	8,756	1,276	2,356	421	47	376	1,330	849	143	1,386	128	58	9,853	3,999	844	26	79	105	204	.269	.341	.457	.797	1362	266.6	.354	117	188.2
16	Steve Carlton S. Carlton	0.04	24	699	1,719	123	346	49	6	13	140	41	10	413	2	2	1,877	446	68	94	13	0	33	.201	.223	.259	.482	69	-134.3	.220	31	-146.8
17	Phil Niekro P. Niekro	0.04	24	732	1,537	80	260	42	1	7	109	17	12	314	0	1	1,707	325	50	129	12	0	35	.169	.183	.211	.395	11	-173.3	.180	0	-193.6
18	Pete Rose P. Rose	0.04	24	3,562	14,053	2,165	4,256	746	135	160	1,314	1,566	107	1,143	198	149	15,861	5,752	1,041	56	79	167	247	.303	.375	.409	.784	2190	480.1	.354	121	368.7
19	Ty Cobb T. Cobb	0.04	24	3,034	11,434	2,244	4,189	724	295	117	1,933	1,249	94	681	897		13,068	5,854	1,136	291				.366	.433	.512	.945	2534	1,093.6	.445	165	975.1
20	Greg Maddux G. Maddux	0.03	23	737	1,591	103	272	35	2	5	84	34	5	419	11	3	1,812	326	42	180	2	0	15	.171	.191	.205	.395	-1	-219.7	.179	-1	-228
21	Julio Franco J. Franco	0.03	23	2,527	8,677	1,285	2,586	407	54	173	1,194	917	38	1,341	281	107	9,731	3,620	634	19	80	67	312	.298	.365	.417	.782	1335	197.2	.348	112	144.6
22	Tim Raines T. Raines	0.03	23	2,502	8,872	1,571	2,605	430	113	170	980	1,330	42	966	808	146	10,359	3,771	713	39	76	148	142	.294	.385	.425	.810	1517	318.9	.361	125	306.9
23	Dennis Martinez D. Martinez	0.03	23	293	520	25	74	12	0	0	33	15	2	168	1	0	604	86	12	65	2	0	8	.142	.169	.165	.334	-8	-76.7	.155	-11	-77.4
24	Don Sutton D. Sutton	0.03	23	611	1,354	64	195	15	1	0	64	60	6	365	1	0	1,559	212	16	136	3	0	29	.144	.183	.157	.340	-10	-177.8	.162	-1	-178.7
25	Tony Perez T. Perez	0.03	23	2,777	9,778	1,272	2,732	505	79	379	1,652	925	43	1,867	49	33	10,861	4,532	963	9	106	150	268	.279	.341	.463	.804	1511	343.8	.356	121	265.2