Jacob deGrom has the best career K/BB for the Mets, with 5.30 K/BB.

Interpreted as:

best k/bb with a minimum of 750 IP pitcher mets career

	NAME	K/BB	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	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Jacob deGrom J. deGrom	5.30	1326.0	209	82	57	.590	209	2.52	1,607	4	2	0	1,021	372	407	117	303	21	0	13	5,217	26	10.91	2.06	0.79	30.8	5.8	1.00	.285	2.76	65	2.61	64	6.93	216.2
2	Rick Reed R. Reed	3.73	888.2	140	59	36	.621	138	3.66	590	8	3	0	868	361	380	116	158	18	0	14	3,605	6	5.98	1.60	1.17	16.4	4.4	1.15	.276	3.85	87	4.07	94	8.79	23.4
3	Tom Seaver T. Seaver	3.00	3045.2	401	198	124	.615	395	2.57	2,541	171	44	1	2,431	870	953	212	847	52	5	70	12,191	81	7.51	2.50	0.63	20.8	6.9	1.08	.260	2.82	74	2.67	78	7.18	255.8
4	Dwight Gooden D. Gooden	2.88	2169.2	305	157	85	.649	303	3.10	1,875	67	23	1	1,898	747	823	123	651	41	1	31	8,898	47	7.78	2.70	0.51	21.1	7.3	1.17	.286	3.41	86	2.76	75	7.87	217.6
5	David Cone D. Cone	2.72	1209.1	187	81	51	.614	169	3.13	1,172	34	15	1	1,011	421	472	91	431	28	4	23	5,008	62	8.72	3.21	0.68	23.4	8.6	1.19	.280	3.51	89	2.98	82	7.52	85.8
6	Jonathon Niese J. Niese	2.55	1079.1	188	61	62	.496	179	3.99	838	3	2	0	1,147	478	540	110	329	38	2	13	4,663	27	6.99	2.74	0.92	18.0	7.1	1.37	.310	4.50	107	3.88	101	9.56	-5.1
7	Jon Matlack J. Matlack	2.44	1448.0	203	82	81	.503	199	3.03	1,023	65	26	0	1,312	488	557	92	419	15	2	57	5,953	42	6.36	2.60	0.57	17.2	7.0	1.20	.277	3.46	87	2.88	82	8.15	100.6
8	Sid Fernandez S. Fernandez	2.43	1584.2	255	98	78	.557	250	3.14	1,449	23	9	1	1,167	553	601	138	596	36	1	27	6,456	20	8.23	3.38	0.78	22.4	9.2	1.11	.243	3.41	88	3.29	90	6.63	60.3
9	Jerry Koosman J. Koosman	2.19	2544.2	376	140	137	.505	346	3.09	1,799	108	26	5	2,281	875	994	187	820	49	14	92	10,517	66	6.36	2.90	0.66	17.1	7.8	1.22	.273	3.52	89	3.12	90	8.07	93.1
10	Bob Ojeda B. Ojeda	2.15	764.0	140	51	40	.560	109	3.12	459	17	9	0	690	265	305	52	213	10	10	15	3,139	9	5.41	2.51	0.61	14.6	6.8	1.18	.265	3.59	90	3.33	93	8.13	21.5
11	Al Leiter A. Leiter	2.03	1360.0	213	95	67	.586	213	3.42	1,106	10	7	0	1,222	517	574	118	546	63	0	38	5,774	24	7.32	3.61	0.78	19.2	9.5	1.30	.280	3.80	82	3.91	91	8.09	60
12	Bobby Jones B. Jones	2.02	1215.2	193	74	56	.569	190	4.13	714	10	4	0	1,255	558	628	137	353	33	0	32	5,154	13	5.29	2.61	1.01	13.9	6.8	1.32	.285	4.65	100	4.36	103	9.29	-16.8
13	Jack Fisher J. Fisher	1.96	931.2	160	38	73	.342	133	4.12	475	35	4	1	988	427	474	92	242	26	14	18	3,957	28	4.59	2.34	0.89	12.0	6.1	1.32	.287	4.58	119	3.68	110	9.54	-34.2
14	Ron Darling R. Darling	1.87	1620.0	257	99	70	.586	241	3.50	1,148	25	10	0	1,473	630	716	155	614	36	4	23	6,807	63	6.38	3.41	0.86	16.9	9.0	1.29	.272	3.98	99	3.80	105	8.18	-35.5
15	Al Jackson A. Jackson	1.85	980.2	184	43	80	.350	138	4.26	561	41	10	6	1,033	464	541	82	304	32	15	20	4,231	28	5.15	2.79	0.75	13.3	7.2	1.36	.292	4.96	120	3.51	101	9.48	-3.1
16	Craig Swan C. Swan	1.82	1230.2	229	59	71	.454	184	3.72	671	25	7	2	1,191	508	569	112	368	11	15	38	5,140	7	4.91	2.69	0.82	13.1	7.2	1.27	.271	4.16	104	3.70	102	8.71	-12.7
17	Tug McGraw T. McGraw	1.77	792.2	361	47	55	.461	36	3.17	618	5	1	86	685	279	316	64	350	13	228	67	3,345	44	7.02	3.97	0.73	18.5	10.5	1.31	.270	3.59	89	3.38	98	7.78	5.5
18	Gary Gentry G. Gentry	1.74	789.1	131	41	42	.494	121	3.56	563	22	8	1	667	312	348	79	324	26	4	25	3,322	23	6.42	3.69	0.90	16.9	9.8	1.26	.252	3.97	100	3.70	108	7.61	-24.5
19	Steve Trachsel S. Trachsel	1.64	956.1	160	66	59	.528	160	4.09	580	5	4	0	967	435	478	124	354	16	0	30	4,098	22	5.46	3.33	1.17	14.2	8.6	1.38	.279	4.50	98	4.67	109	9.10	-44.4
20	Tom Glavine T. Glavine	1.60	1005.1	164	61	56	.521	164	3.97	516	4	3	0	1,057	443	472	98	323	15	0	31	4,293	6	4.62	2.89	0.88	12.0	7.5	1.37	.287	4.23	94	4.34	100	9.46	-1.8
21	Mike Pelfrey M. Pelfrey	1.59	896.1	153	50	54	.481	149	4.36	506	4	0	1	989	434	463	70	318	45	1	22	3,931	12	5.08	3.19	0.70	12.9	8.1	1.46	.307	4.65	109	4.19	103	9.93	-13.5