Kenley Jansen has thrown in the most career games by an active pitcher, with 901 games.

Interpreted as:

most regular-season games played by active MLB pitcher

	NAME	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%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Kenley Jansen K. Jansen	901	50	38	.568	0	2.62	1,246	0	0	461	895.0	599	261	279	86	272	31	676	19	3,561	21	12.53	2.74	4.58	0.86	35.0	7.6	0.97	.266	2.81	66	2.61	64	6.02	142.4
2	Aroldis Chapman A. Chapman	831	58	46	.558	0	2.58	1,291	0	0	349	792.0	463	227	252	53	402	33	540	7	3,234	82	14.67	4.57	3.21	0.60	39.9	12.4	1.09	.282	2.86	63	2.39	57	5.26	152.7
3	Ryan Pressly R. Pressly	654	37	38	.493	0	3.30	713	0	0	116	679.0	600	249	280	62	202	15	253	14	2,805	47	9.45	2.68	3.53	0.82	25.4	7.2	1.18	.297	3.71	79	3.19	77	7.95	75.1
4	Héctor Neris H. Neris	629	46	42	.523	0	3.45	758	0	0	107	613.2	495	235	260	80	234	36	269	15	2,568	37	11.12	3.43	3.24	1.17	29.5	9.1	1.19	.284	3.81	84	3.71	88	7.26	35.4
5	Justin Wilson J. Wilson	618	36	29	.554	0	3.54	593	0	0	20	539.2	467	212	225	48	235	17	121	15	2,287	41	9.89	3.92	2.52	0.80	25.9	10.3	1.30	.301	3.75	88	3.49	86	7.79	35.6
6	Andrew Chafin A. Chafin	617	21	27	.438	3	3.41	569	0	0	20	519.2	445	197	218	37	226	16	101	18	2,199	32	9.85	3.91	2.52	0.64	25.9	10.3	1.29	.302	3.78	81	3.29	80	7.71	48
7	Luis García L. García	571	28	28	.500	4	4.16	522	0	0	15	554.0	546	256	283	52	246	26	141	25	2,440	65	8.48	4.00	2.12	0.84	21.4	10.1	1.43	.310	4.60	101	3.96	94	8.87	15.3
8	Raisel Iglesias R. Iglesias	559	42	54	.438	21	3.01	825	0	0	232	696.0	551	233	259	82	192	26	425	16	2,814	17	10.67	2.48	4.30	1.06	29.3	6.8	1.07	.278	3.35	71	3.26	77	7.13	73.7
9	Taylor Rogers T. Rogers	539	30	36	.455	0	3.34	597	0	0	83	515.0	458	191	223	53	154	33	158	22	2,142	12	10.43	2.69	3.88	0.93	27.9	7.2	1.19	.310	3.90	79	3.27	77	8.00	55.8
10	Justin Verlander J. Verlander	537	262	151	.634	537	3.32	3,463	26	9	0	3472.1	2,950	1,280	1,385	364	974	116	0	27	14,192	97	8.98	2.52	3.56	0.94	24.4	6.9	1.13	.279	3.59	79	3.43	81	7.65	303.3
11	Blake Treinen B. Treinen	507	43	36	.544	7	2.79	570	0	0	82	557.2	465	173	198	40	207	19	191	22	2,293	23	9.20	3.34	2.75	0.65	24.9	9.0	1.21	.292	3.20	67	3.26	78	7.50	55.4
12	Hunter Strickland H. Strickland	494	26	24	.520	0	3.28	416	0	0	30	463.2	388	169	189	49	173	21	155	13	1,935	18	8.07	3.36	2.40	0.95	21.5	8.9	1.21	.266	3.67	80	3.98	97	7.53	5.1
13	Liam Hendriks L. Hendriks	490	33	36	.478	44	3.88	739	1	0	116	663.2	630	286	319	79	166	20	218	16	2,766	42	10.02	2.25	4.45	1.07	26.7	6.0	1.20	.313	4.33	94	3.29	80	8.54	65.9
14	Edwin Díaz E. Díaz	487	25	33	.431	0	2.95	784	0	0	240	482.1	334	158	170	52	173	35	368	9	1,962	31	14.63	3.23	4.53	0.97	40.0	8.8	1.05	.307	3.17	73	2.59	62	6.23	84.5
15	Carlos Estévez C. Estévez	471	29	33	.468	0	4.05	468	0	0	104	453.0	430	204	229	56	175	21	220	21	1,956	23	9.30	3.48	2.67	1.11	23.9	8.9	1.34	.303	4.55	86	4.00	91	8.54	20
16	Max Scherzer M. Scherzer	467	215	112	.657	458	3.16	3,408	12	5	0	2881.0	2,349	1,012	1,085	337	756	112	2	20	11,640	78	10.65	2.36	4.51	1.05	29.3	6.5	1.08	.286	3.39	76	3.18	77	7.34	307.9
17	Wandy Peralta W. Peralta	465	25	21	.543	1	3.88	340	0	0	13	418.0	374	180	202	48	186	21	102	9	1,795	13	7.32	4.00	1.83	1.03	18.9	10.4	1.34	.272	4.35	92	4.51	106	8.05	-12.1
18	T.J. McFarland	458	26	20	.565	3	4.14	325	0	0	1	545.0	617	251	285	49	174	18	123	34	2,363	15	5.37	2.87	1.87	0.81	13.8	7.4	1.45	.316	4.71	100	4.17	101	10.19	-3.4
19	Josh Hader J. Hader	451	33	30	.524	0	2.63	804	0	0	216	493.0	270	144	155	61	189	23	308	5	1,939	19	14.68	3.45	4.25	1.11	41.5	9.7	0.93	.242	2.83	64	2.80	67	4.93	76.9
20	Kirby Yates K. Yates	450	30	23	.566	0	3.21	605	0	0	96	434.0	315	155	168	58	171	29	201	13	1,801	18	12.55	3.55	3.54	1.20	33.6	9.5	1.12	.274	3.48	79	3.50	84	6.53	32.4
21	Phil Maton P. Maton	446	20	17	.541	1	4.01	497	0	0	7	440.1	392	196	221	50	171	46	85	8	1,890	11	10.16	3.50	2.91	1.02	26.3	9.0	1.28	.304	4.52	98	3.86	94	8.01	13.1
22	Emilio Pagán E. Pagán	440	26	25	.510	2	3.75	542	0	0	51	471.0	371	196	211	81	136	10	143	6	1,909	12	10.36	2.60	3.99	1.55	28.4	7.1	1.08	.254	4.03	91	4.03	96	7.09	9.9
23	Clayton Kershaw C. Kershaw	439	215	94	.696	436	2.51	2,992	25	15	0	2775.1	2,122	774	849	231	690	44	1	28	10,952	105	9.70	2.24	4.34	0.75	27.3	6.3	1.01	.270	2.75	64	2.84	70	6.88	366.2
24	Yimi García Y. García	435	22	31	.415	1	3.57	455	0	0	29	418.1	335	166	192	61	106	25	125	17	1,706	6	9.79	2.28	4.29	1.31	26.7	6.2	1.05	.259	4.13	89	3.82	93	7.21	13.7
25	Ryne Stanek R. Stanek	431	19	21	.475	56	3.71	496	0	0	12	427.1	342	176	197	56	210	10	89	14	1,813	30	10.45	4.42	2.36	1.18	27.4	11.6	1.29	.275	4.15	90	4.09	99	7.20	1.9