John Franco has the most career saves by a left-hander, with 424 saves.

Interpreted as:

most left handed regular-season saves by a player

	NAME	SV	G	W	L	W%	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	John Franco J. Franco	424	1,119	90	87	.508	0	2.89	975	0	0	1245.2	1,166	400	466	81	495	22	774	78	5,312	54	7.04	3.58	1.97	0.59	18.4	9.3	1.33	.290	3.37	73	3.44	86	8.42	76
2	Billy Wagner B. Wagner	422	853	47	40	.540	0	2.31	1,196	0	0	903.0	601	232	262	82	300	33	703	26	3,600	43	11.92	2.99	3.99	0.82	33.2	8.3	1.00	.261	2.61	54	2.72	63	5.99	159
3	Aroldis Chapman A. Chapman	367	863	60	47	.561	0	2.52	1,331	0	0	821.1	475	230	255	54	408	33	563	7	3,341	87	14.58	4.47	3.26	0.59	39.8	12.2	1.08	.278	2.79	61	2.36	57	5.20	161.8
4	Randy Myers R. Myers	347	728	44	63	.411	12	3.19	884	1	0	884.2	758	314	338	69	396	12	548	43	3,744	32	8.99	4.03	2.23	0.70	23.6	10.6	1.30	.289	3.44	81	3.32	83	7.71	68.8
5	Dave Righetti D. Righetti	252	718	82	79	.509	89	3.46	1,112	13	2	1403.2	1,287	540	602	95	591	21	474	48	5,988	40	7.13	3.79	1.88	0.61	18.6	9.9	1.34	.286	3.86	88	3.37	85	8.25	94.3
6	Sparky Lyle S. Lyle	238	899	99	76	.566	0	2.88	873	0	0	1390.1	1,292	445	519	84	481	14	634	81	5,794	66	5.65	3.11	1.81	0.54	15.1	8.3	1.28	.278	3.36	79	3.19	86	8.36	81.4
7	Josh Hader J. Hader	226	468	34	31	.523	0	2.64	829	0	0	512.1	282	150	164	65	198	24	321	6	2,019	19	14.56	3.48	4.19	1.14	41.1	9.8	0.94	.240	2.88	64	2.88	69	4.95	75.7
8	Brian Fuentes B. Fuentes	204	650	26	43	.377	0	3.62	639	0	0	613.1	515	247	267	64	258	52	381	25	2,622	32	9.38	3.79	2.48	0.94	24.4	9.8	1.26	.280	3.92	81	3.86	88	7.56	37.4
9	Mitch Williams M. Williams	192	619	45	58	.437	3	3.65	660	0	0	691.1	537	280	317	49	544	52	419	39	3,119	44	8.59	7.08	1.21	0.64	21.2	17.4	1.56	.269	4.13	91	4.43	111	6.99	-34.7
10	Eddie Guardado E. Guardado	187	908	46	61	.430	25	4.31	798	0	0	944.2	894	452	476	138	348	16	401	39	4,011	25	7.60	3.32	2.29	1.31	19.9	8.7	1.31	.279	4.53	92	4.44	98	8.52	7
11	Tug McGraw T. McGraw	180	824	96	92	.511	39	3.14	1,109	5	1	1514.2	1,318	528	597	108	582	22	541	128	6,313	63	6.59	3.46	1.91	0.64	17.6	9.2	1.25	.269	3.55	87	3.25	91	7.83	51.2
12	Ron Perranoski R. Perranoski	178	737	79	74	.516	1	2.79	687	0	0	1174.2	1,097	364	442	50	468	24	458	121	5,023	28	5.26	3.59	1.47	0.38	13.7	9.3	1.33	.276	3.39	82	3.17	93	8.40	30.6
13	Dan Plesac D. Plesac	158	1,064	65	71	.478	14	3.64	1,041	0	0	1072.0	977	433	478	105	402	17	422	54	4,539	41	8.74	3.38	2.59	0.88	22.9	8.9	1.29	.293	4.01	86	3.45	82	8.20	89.5
14	Zack Britton Z. Britton	154	442	35	26	.574	46	3.13	532	0	0	641.0	546	223	255	39	264	12	250	13	2,652	48	7.47	3.71	2.02	0.55	20.1	10.0	1.26	.281	3.58	75	3.53	83	7.67	51.8
15	Willie Hernandez W. Hernandez	147	744	70	63	.526	11	3.38	788	0	0	1044.2	952	392	431	97	349	25	419	79	4,366	37	6.79	3.01	2.26	0.84	18.0	8.0	1.25	.275	3.71	85	3.50	88	8.20	55.7
16	Jesse Orosco J. Orosco	144	1,252	87	80	.521	4	3.16	1,179	0	0	1295.1	1,055	455	512	113	581	34	501	86	5,460	40	8.19	4.04	2.03	0.79	21.6	10.6	1.26	.265	3.56	80	3.60	91	7.33	52.1
17	Darold Knowles D. Knowles	143	765	66	74	.471	8	3.12	681	1	1	1092.0	1,006	378	437	65	480	38	417	85	4,658	30	5.61	3.96	1.42	0.54	14.6	10.3	1.36	.277	3.60	88	3.51	99	8.29	2.9
18	Gary Lavelle G. Lavelle	136	745	80	77	.510	3	2.93	769	0	0	1085.0	1,004	353	413	51	440	13	399	126	4,604	19	6.38	3.65	1.75	0.42	16.7	9.6	1.33	.286	3.43	80	3.13	88	8.33	54.8
19	Jim Brewer J. Brewer	133	584	69	65	.515	35	3.07	810	1	1	1040.1	898	355	401	92	360	10	351	77	4,299	41	7.01	3.11	2.25	0.80	18.8	8.4	1.21	.266	3.47	89	3.19	96	7.77	14.7
20	Brad Hand B. Hand	132	579	40	55	.421	43	3.75	782	0	0	772.0	673	322	356	80	297	46	254	26	3,266	29	9.12	3.46	2.63	0.93	23.9	9.1	1.26	.288	4.15	94	3.79	95	7.85	20.2
21	Terry Forster T. Forster	127	614	54	65	.454	39	3.23	791	5	0	1105.2	1,034	397	454	51	457	24	318	63	4,700	46	6.44	3.72	1.73	0.42	16.8	9.7	1.35	.291	3.70	88	3.08	83	8.42	73.5
22	Dave LaRoche D. LaRoche	126	647	65	58	.528	15	3.53	819	1	0	1049.1	919	411	448	94	459	29	381	81	4,459	18	7.02	3.94	1.78	0.81	18.4	10.3	1.31	.270	3.84	94	3.61	95	7.88	20
23	John Hiller J. Hiller	125	545	87	76	.534	43	2.83	1,036	13	6	1242.0	1,040	391	438	110	535	12	363	71	5,206	39	7.51	3.88	1.94	0.80	19.9	10.3	1.27	.265	3.17	75	3.38	89	7.54	58.9
24	Glen Perkins G. Perkins	120	409	35	25	.583	44	3.88	504	0	0	624.1	646	269	290	74	158	22	228	13	2,635	21	7.27	2.28	3.19	1.07	19.1	6.0	1.29	.305	4.18	92	3.89	94	9.31	14.4
25	B.J. Ryan	117	560	21	28	.429	0	3.37	625	0	0	536.2	424	201	216	42	264	17	249	27	2,273	21	10.48	4.43	2.37	0.70	27.5	11.6	1.28	.288	3.62	76	3.32	73	7.11	71.3