4 pitchers were tied for throwing in the most games by a starting pitcher in 2020, with 13 games. The first three are Kyle Freeland, Lance Lynn and Germán Márquez.

	NAME	G	SEASON	TM	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	H/9
1	Kyle Freeland K. Freeland	13	2020	COL	2	3	.400	13	4.33	46	0	0	0	70.2	77	34	34	9	23	3	0	0	304	0	5.86	2.93	2.00	1.15	15.1	7.6	1.42	.305	4.33	9.81
2	Lance Lynn L. Lynn	13	2020	TEX	6	3	.667	13	3.32	89	1	0	0	84.0	64	31	34	13	25	6	0	0	344	2	9.54	2.68	3.56	1.39	25.9	7.3	1.06	.242	3.64	6.86
3	Germán Márquez G. Márquez	13	2020	COL	4	6	.400	13	3.75	73	0	0	0	81.2	78	34	41	6	25	0	0	0	344	4	8.04	2.76	2.92	0.66	21.2	7.3	1.26	.300	4.52	8.60
4	Brandon Woodruff B. Woodruff	13	2020	MIL	3	5	.375	13	3.05	91	1	0	0	73.2	55	25	26	9	18	4	0	0	293	1	11.12	2.20	5.06	1.10	31.1	6.1	0.99	.269	3.18	6.72
5	Dylan Cease D. Cease	12	2020	CWS	5	4	.556	12	4.01	44	0	0	0	58.1	50	26	30	12	34	5	0	1	255	1	6.79	5.25	1.29	1.85	17.3	13.3	1.44	.238	4.63	7.71
6	Zach Davies Z. Davies	12	2020	SDP	7	4	.636	12	2.73	63	0	0	0	69.1	55	21	26	9	19	0	0	0	276	2	8.18	2.47	3.32	1.17	22.8	6.9	1.07	.249	3.38	7.14
7	Kyle Gibson K. Gibson	12	2020	TEX	2	6	.250	12	5.35	58	1	1	0	67.1	73	40	44	12	30	6	0	1	301	1	7.75	4.01	1.93	1.60	19.3	10.0	1.53	.313	5.88	9.76
8	Antonio Senzatela A. Senzatela	12	2020	COL	5	3	.625	12	3.44	41	1	0	0	73.1	71	28	29	9	18	4	0	0	303	0	5.03	2.21	2.28	1.10	13.5	5.9	1.21	.268	3.56	8.71
9	Aaron Civale A. Civale	12	2020	CLE	4	6	.400	12	4.74	69	1	0	0	74.0	82	39	39	11	16	3	0	0	312	0	8.39	1.95	4.31	1.34	22.1	5.1	1.32	.333	4.74	9.97
10	Jon Lester J. Lester	12	2020	CHC	3	3	.500	12	5.16	42	0	0	0	61.0	64	35	35	11	17	3	0	0	265	2	6.20	2.51	2.47	1.62	15.8	6.4	1.33	.276	5.16	9.44
11	Luke Weaver L. Weaver	12	2020	ARI	1	9	.100	12	6.58	55	0	0	0	52.0	63	38	39	10	18	1	0	0	236	0	9.52	3.12	3.06	1.73	23.3	7.6	1.56	.349	6.75	10.90
12	Carlos Carrasco C. Carrasco	12	2020	CLE	3	4	.429	12	2.91	82	0	0	0	68.0	55	22	22	8	27	2	0	0	280	6	10.85	3.57	3.04	1.06	29.3	9.6	1.21	.292	2.91	7.28
13	Zack Greinke Z. Greinke	12	2020	HOU	3	3	.500	12	4.03	67	0	0	0	67.0	67	30	30	6	9	1	0	0	273	3	9.00	1.21	7.44	0.81	24.5	3.3	1.13	.321	4.03	9.00
14	Rick Porcello R. Porcello	12	2020	NYM	1	7	.125	12	5.64	54	0	0	0	59.0	74	37	41	5	15	2	0	0	261	1	8.24	2.29	3.60	0.76	20.7	5.7	1.51	.373	6.25	11.29
15	Zac Gallen Z. Gallen	12	2020	ARI	3	2	.600	12	2.75	82	0	0	0	72.0	55	22	24	9	25	2	0	0	291	4	10.25	3.13	3.28	1.13	28.2	8.6	1.11	.266	3.00	6.88
16	Luis Castillo L. Castillo	12	2020	CIN	4	6	.400	12	3.21	89	1	0	0	70.0	62	25	31	5	24	1	0	0	292	1	11.44	3.09	3.71	0.64	30.5	8.2	1.23	.329	3.99	7.97
17	Yu Darvish Y. Darvish	12	2020	CHC	8	3	.727	12	2.01	93	0	0	0	76.0	59	17	18	5	14	2	0	1	297	3	11.01	1.66	6.64	0.59	31.3	4.7	0.96	.295	2.13	6.99
18	Dinelson Lamet D. Lamet	12	2020	SDP	3	1	.750	12	2.09	93	0	0	0	69.0	39	16	18	5	20	4	0	0	267	1	12.13	2.61	4.65	0.65	34.8	7.5	0.86	.234	2.35	5.09
19	Martín Pérez M. Pérez	12	2020	BOS	3	5	.375	12	4.50	46	0	0	0	62.0	55	31	33	8	28	3	0	0	262	2	6.68	4.06	1.64	1.16	17.6	10.7	1.34	.266	4.79	7.98
20	Brady Singer B. Singer	12	2020	KCR	4	5	.444	12	4.06	61	0	0	0	64.1	52	29	29	8	23	2	0	0	263	5	8.53	3.22	2.65	1.12	23.2	8.7	1.17	.260	4.06	7.27
21	José Berríos J. Berríos	12	2020	MIN	5	4	.556	12	4.00	68	0	0	0	63.0	57	28	28	8	26	3	0	0	271	5	9.71	3.71	2.62	1.14	25.1	9.6	1.32	.295	4.00	8.14
22	Matthew Boyd M. Boyd	12	2020	DET	3	7	.300	12	6.71	60	1	0	0	60.1	67	45	46	15	22	5	0	0	271	5	8.95	3.28	2.73	2.24	22.1	8.1	1.48	.308	6.86	9.99
23	Jacob deGrom J. deGrom	12	2020	NYM	4	2	.667	12	2.38	104	0	0	0	68.0	47	18	21	7	18	0	0	0	268	4	13.76	2.38	5.78	0.93	38.8	6.7	0.96	.288	2.78	6.22
24	Lucas Giolito L. Giolito	12	2020	CWS	4	3	.571	12	3.48	97	1	1	0	72.1	47	28	31	8	28	2	0	0	288	3	12.07	3.48	3.46	1.00	33.7	9.7	1.04	.255	3.86	5.85
25	Andrew Heaney A. Heaney	12	2020	LAA	4	3	.571	12	4.45	70	0	0	0	66.2	63	33	35	9	19	2	0	1	279	2	9.45	2.57	3.68	1.21	25.1	6.8	1.23	.302	4.72	8.51