Jon Lester was 209-124 in the regular-season and playoffs in his career.

	NAME	REC	SEASON	TM	W%	G	W	L	GS	ERA	SO	CG	SHO	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	Jon Lester J. Lester	7-2	2006	BOS	.778	15	7	2	15	4.76	60	0	0	81.1	91	43	43	7	43	5	0	1	367	5	6.64	4.76	1.40	0.77	16.3	11.7	1.65	.333	4.76	101	4.55	103	10.07	-1.3
2	Jon Lester J. Lester	5-0	2007	BOS	1.000	15	5	0	12	4.23	58	0	0	72.1	67	34	35	11	35	1	2	0	313	1	7.22	4.35	1.66	1.37	18.5	11.2	1.41	.269	4.35	86	4.55	106	8.34	-6.8
3	Jon Lester J. Lester	17-8	2008	BOS	.680	37	17	8	37	3.11	178	2	2	237.0	226	82	87	17	71	10	0	1	983	3	6.76	2.70	2.51	0.65	18.1	7.2	1.25	.296	3.30	63	3.22	77	8.58	13.2
4	Jon Lester J. Lester	15-9	2009	BOS	.625	33	15	9	33	3.44	230	2	0	209.1	190	80	83	21	68	3	0	0	871	6	9.89	2.92	3.38	0.90	26.4	7.8	1.23	.308	3.57	71	3.05	71	8.17	27
5	Jon Lester J. Lester	19-9	2010	BOS	.679	32	19	9	32	3.25	225	2	0	208.0	167	75	81	14	83	10	0	0	861	6	9.74	3.59	2.71	0.61	26.1	9.6	1.20	.289	3.50	75	3.12	76	7.23	23.3
6	Jon Lester J. Lester	15-9	2011	BOS	.625	31	15	9	31	3.47	182	0	0	191.2	166	74	77	20	75	11	0	0	799	4	8.55	3.52	2.43	0.94	22.8	9.4	1.26	.286	3.62	82	3.82	97	7.79	2.8
7	Jon Lester J. Lester	9-14	2012	BOS	.391	33	9	14	33	4.82	166	3	0	205.1	216	110	117	25	68	4	0	2	876	6	7.28	2.98	2.44	1.10	18.9	7.8	1.38	.312	5.13	114	4.10	101	9.47	-1.5
8	Jon Lester J. Lester	19-9	2013	BOS	.679	38	19	9	38	3.45	206	1	1	248.0	234	95	100	22	75	9	0	0	1,037	5	7.48	2.72	2.75	0.80	19.9	7.2	1.25	.292	3.63	77	3.08	79	8.49	7.1
9	Jon Lester J. Lester	16-11	2014	TOT	.593	33	16	11	33	2.62	225	1	1	227.0	202	66	82	16	50	5	0	0	916	3	8.92	1.98	4.50	0.63	24.6	5.5	1.11	.300	3.25	61	2.71	72	8.01	23.1
10	Jon Lester J. Lester	11-14	2015	CHC	.440	34	11	14	34	3.41	221	1	0	219.0	196	83	90	19	49	7	0	0	884	10	9.08	2.01	4.51	0.78	25.0	5.5	1.12	.301	3.70	80	2.73	70	8.05	21.9
11	Jon Lester J. Lester	22-6	2016	CHC	.786	38	22	6	37	2.38	227	2	0	238.1	181	63	66	24	58	7	0	0	932	5	8.57	2.19	3.91	0.91	24.4	6.2	1.00	.255	2.49	50	2.89	70	6.83	16.3
12	Jon Lester J. Lester	13-8	2017	CHC	.619	35	13	8	34	4.15	187	1	0	195.0	185	90	104	27	68	4	0	3	818	4	8.63	3.14	2.75	1.25	22.9	8.3	1.30	.297	4.80	93	3.79	88	8.54	4.5
13	Jon Lester J. Lester	18-6	2018	CHC	.750	33	18	6	33	3.26	158	0	0	187.2	178	68	76	24	65	6	0	1	784	4	7.58	3.12	2.43	1.15	20.2	8.3	1.29	.290	3.64	81	4.25	106	8.54	-7.6
14	Jon Lester J. Lester	13-10	2019	CHC	.565	31	13	10	31	4.46	165	0	0	171.2	205	85	101	26	52	5	0	0	764	3	8.65	2.73	3.17	1.36	21.6	6.8	1.50	.347	5.30	101	4.25	96	10.75	3.4
15	Jon Lester J. Lester	3-3	2020	CHC	.500	12	3	3	12	5.16	42	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	117	5.13	117	9.44	-5
16	Jon Lester J. Lester	7-6	2021	TOT	.538	28	7	6	28	4.71	91	0	0	141.1	159	74	84	25	55	3	0	5	627	0	5.79	3.50	1.65	1.59	14.5	8.8	1.51	.296	5.35	114	5.41	128	10.13	-18.7
	Total	209-124			.628	478	209	124	473	3.60	2,621	15	4	2894.0	2,727	1,157	1,261	309	932	93	2	13	12,097	67	8.15	2.90	2.81	0.96	21.7	7.7	1.26	.297	3.92	81	3.57	87	8.48	101.7