Joe Nathan had a 7-4 record with an ERA of 4.18, 54 strikeouts and 1 save in 19 appearances in his rookie season in 1999.

		NAME	SEASON	TM	G	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	ERA-	FIP	FIP-	H/9	PRAA
1		Joe Nathan J. Nathan	1999	SFG	19	7	4	.636	14	4.18	54	0	0	1	90.1	84	42	45	17	46	1	2	0	395	2	5.38	4.58	1.17	1.69	13.7	11.6	1.44	.242	4.48	96	5.93	130	8.37	-13.9

	NAME	DATE	SEASON	TM		OPP	DEC	GS	ERA	SO	SV	IP	H	ER	R	HR	BB	HBP	GF	TBF	WP
1	Joe Nathan J. Nathan	10/3/1999	1999	SFG	@	COL		1	9.00	2	0	5.0	6	5	5	1	3	0	0	24	1
2	Joe Nathan J. Nathan	9/28/1999	1999	SFG	vs	LAD	L	1	5.68	4	0	6.1	8	4	4	2	2	0	0	30	0
3	Joe Nathan J. Nathan	9/22/1999	1999	SFG	@	LAD		1	1.50	2	0	6.0	4	1	3	0	3	1	0	27	0
4	Joe Nathan J. Nathan	9/17/1999	1999	SFG	@	SDP	W	1	2.57	2	0	7.0	5	2	2	1	3	0	0	28	0
5	Joe Nathan J. Nathan	9/12/1999	1999	SFG	vs	ATL	W	1	6.75	4	0	5.1	6	4	4	2	2	0	0	23	0
6	Joe Nathan J. Nathan	9/7/1999	1999	SFG	@	NYM		1	6.75	1	0	5.1	3	4	4	0	5	0	0	23	0
7	Joe Nathan J. Nathan	9/2/1999	1999	SFG	vs	PHI	W	1	2.57	4	0	7.0	6	2	2	1	3	0	0	29	0
8	Joe Nathan J. Nathan	8/27/1999	1999	SFG	vs	PIT	L	1	4.50	6	0	6.0	6	3	3	1	4	0	0	27	0
9	Joe Nathan J. Nathan	8/22/1999	1999	SFG	@	MIL	W	1	1.80	2	0	5.0	7	1	1	0	3	0	0	25	0
10	Joe Nathan J. Nathan	8/16/1999	1999	SFG	vs	MON	W	1	1.42	3	0	6.1	3	1	1	0	4	0	0	26	0
11	Joe Nathan J. Nathan	8/4/1999	1999	SFG	@	ARI	L	1	45.00	1	0	1.0	3	5	5	3	2	0	0	8	0
12	Joe Nathan J. Nathan	5/30/1999	1999	SFG	@	MON		0	0.00	3	0	2.0	3	0	0	0	0	0	1	9	0
13	Joe Nathan J. Nathan	5/23/1999	1999	SFG	vs	HOU	L	0	13.50	4	0	2.0	2	3	3	1	2	0	0	10	0
14	Joe Nathan J. Nathan	5/16/1999	1999	SFG	@	HOU		0	0.00	1	1	1.0	0	0	0	0	1	0	1	4	0
15	Joe Nathan J. Nathan	5/12/1999	1999	SFG	vs	ATL		0	4.50	2	0	2.0	3	1	1	1	2	0	0	11	0
16	Joe Nathan J. Nathan	5/9/1999	1999	SFG	vs	MIL		0	4.50	0	0	2.0	2	1	1	1	0	0	0	8	0
17	Joe Nathan J. Nathan	5/3/1999	1999	SFG	@	PIT		1	4.50	4	0	6.0	6	3	4	3	3	0	0	26	0
18	Joe Nathan J. Nathan	4/28/1999	1999	SFG	@	MON	W	1	2.25	5	0	8.0	7	2	2	0	1	0	0	31	0
19	Joe Nathan J. Nathan	4/21/1999	1999	SFG	vs	FLA	W	1	0.00	4	0	7.0	4	0	0	0	3	0	0	26	1
	Total							14	4.18	54	1	90.1	84	42	45	17	46	1	2	395	2