mlb innings pitched leaders under 28 years old all-time but made debut after 2015

Since 2016, Germán Márquez has pitched the most innings by a pitcher younger than 28, with 996 innings.

	NAME	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%	WHIP	BABIP	RA	H/9
1	Germán Márquez G. Márquez	996.0	172	63	54	.538	169	4.40	966	4	2	0	983	487	522	137	299	32	0	13	4,216	55	8.73	2.70	3.23	1.24	22.9	7.1	1.29	.304	4.72	8.88
2	Sandy Alcantara S. Alcantara	900.2	146	41	55	.427	138	3.32	789	12	4	0	769	332	378	91	273	35	3	8	3,680	18	7.88	2.73	2.89	0.91	21.4	7.4	1.16	.272	3.78	7.68
3	José Berríos J. Berríos	899.0	157	63	49	.563	156	4.07	892	4	1	0	829	407	440	115	279	60	0	1	3,796	28	8.93	2.79	3.20	1.15	23.5	7.3	1.23	.291	4.40	8.30
4	Logan Webb L. Webb	855.1	146	54	40	.574	143	3.42	770	3	2	0	810	325	358	60	204	30	0	4	3,494	20	8.10	2.15	3.77	0.63	22.0	5.8	1.19	.309	3.77	8.52
5	Aaron Nola A. Nola	835.1	138	56	42	.571	138	3.49	932	3	2	0	716	324	345	89	254	32	0	14	3,440	11	10.04	2.74	3.67	0.96	27.1	7.4	1.16	.294	3.72	7.71
6	Shane Bieber S. Bieber	774.0	124	58	29	.667	122	3.16	880	5	2	0	686	272	292	87	172	16	1	1	3,129	31	10.23	2.00	5.12	1.01	28.1	5.5	1.11	.303	3.40	7.98
7	Lucas Giolito L. Giolito	756.0	133	48	43	.527	131	4.25	798	5	3	0	638	357	379	117	283	28	1	5	3,144	40	9.50	3.37	2.82	1.39	25.4	9.0	1.22	.272	4.51	7.60
8	Logan Gilbert L. Gilbert	734.2	127	41	31	.569	127	3.55	755	2	1	0	617	290	307	94	156	19	0	6	2,959	33	9.25	1.91	4.84	1.15	25.5	5.3	1.05	.270	3.76	7.56
9	Julio Urías J. Urías	717.0	158	60	25	.706	122	3.11	710	0	0	4	599	248	274	84	193	28	11	5	2,917	12	8.91	2.42	3.68	1.05	24.3	6.6	1.10	.271	3.44	7.52
10	Pablo López P. López	704.0	126	39	39	.500	126	3.86	723	1	1	0	639	302	315	83	190	41	0	12	2,911	22	9.24	2.43	3.81	1.06	24.8	6.5	1.18	.297	4.03	8.17
11	Dylan Bundy D. Bundy	678.1	136	44	48	.478	114	4.55	674	3	1	0	661	343	372	119	222	29	6	6	2,889	15	8.94	2.95	3.04	1.58	23.3	7.7	1.30	.294	4.94	8.77
12	Brad Keller B. Keller	677.0	148	38	53	.418	114	4.25	506	2	1	1	678	320	344	62	298	25	6	5	2,938	41	6.73	3.96	1.70	0.82	17.2	10.1	1.44	.301	4.57	9.01
13	Antonio Senzatela A. Senzatela	672.0	143	39	42	.481	117	4.88	447	1	0	0	765	364	385	77	207	27	5	8	2,922	8	5.99	2.77	2.16	1.03	15.3	7.1	1.45	.318	5.16	10.25
14	Jack Flaherty J. Flaherty	667.2	131	42	34	.553	125	3.75	748	0	0	0	554	278	294	88	254	45	0	9	2,790	25	10.08	3.42	2.94	1.19	26.8	9.1	1.21	.282	3.96	7.47
15	Dylan Cease D. Cease	658.0	123	43	35	.551	123	3.83	792	2	2	0	565	280	311	82	294	28	0	7	2,820	38	10.83	4.02	2.69	1.12	28.1	10.4	1.31	.297	4.25	7.73
16	Jesús Luzardo J. Luzardo	651.0	130	37	40	.481	114	4.27	717	0	0	2	599	309	327	84	228	19	4	3	2,734	30	9.91	3.15	3.14	1.16	26.2	8.3	1.27	.305	4.52	8.28
17	Zach Davies Z. Davies	649.2	117	47	34	.580	117	3.80	473	0	0	0	647	274	304	77	184	21	0	6	2,727	12	6.55	2.55	2.57	1.07	17.3	6.7	1.28	.289	4.21	8.96
18	Freddy Peralta F. Peralta	648.0	158	46	30	.605	109	3.82	838	1	0	1	477	275	292	80	247	34	6	3	2,677	22	11.64	3.43	3.39	1.11	31.3	9.2	1.12	.269	4.06	6.63
19	Walker Buehler W. Buehler	638.1	115	46	16	.742	106	3.02	690	3	1	0	499	214	237	68	162	22	2	4	2,558	19	9.73	2.28	4.26	0.96	27.0	6.3	1.04	.267	3.34	7.04
20	Robbie Ray R. Ray	634.1	117	41	30	.577	117	4.04	836	1	1	0	548	285	308	96	296	21	0	15	2,714	28	11.86	4.20	2.82	1.36	30.8	10.9	1.33	.309	4.37	7.78
21	Brady Singer B. Singer	630.2	117	35	37	.486	114	4.17	590	1	0	0	629	292	313	73	196	40	2	1	2,689	16	8.42	2.80	3.01	1.04	21.9	7.3	1.31	.311	4.47	8.98
22	Tyler Mahle T. Mahle	610.0	118	32	39	.451	117	4.35	649	0	0	0	576	295	316	93	226	29	0	8	2,618	13	9.58	3.33	2.87	1.37	24.8	8.6	1.31	.298	4.66	8.50
23	George Kirby G. Kirby	601.1	105	42	32	.568	105	3.55	578	1	0	0	578	237	252	67	87	22	0	1	2,447	12	8.65	1.30	6.64	1.00	23.6	3.6	1.11	.302	3.77	8.65
24	Jon Gray J. Gray	600.2	106	43	31	.581	105	4.39	630	1	1	0	593	293	311	74	197	24	1	7	2,553	23	9.44	2.95	3.20	1.11	24.7	7.7	1.32	.319	4.66	8.89
25	Zac Gallen Z. Gallen	600.0	104	33	27	.550	104	3.17	658	1	1	0	472	211	226	66	186	25	0	2	2,434	25	9.87	2.79	3.54	0.99	27.0	7.6	1.10	.271	3.39	7.08