The Baltimore Orioles are 64-55 against the Nationals all-time.

	TEAM	DATE	REC	TM		OPP	RESULT	W%	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Orioles	6/16/1997	0-1	BAL	vs	MON	L 4-6	.000	35	4	9	0	0	2	4	3	0	11	0	0	38	15	2	0	0	0	2	.257	.316	.429	.744
2	Orioles	6/17/1997	1-0	BAL	vs	MON	W 5-4	1.000	30	5	10	2	0	1	5	5	0	3	1	0	37	15	3	1	1	0	1	.333	.417	.500	.917
3	Orioles	6/18/1997	0-1	BAL	vs	MON	L 0-1	.000	33	0	8	1	0	0	0	0	0	2	0	0	33	9	1	0	0	0	1	.242	.242	.273	.515
4	Orioles	6/26/1998	0-1	BAL	@	MON	L 4-9	.000	38	4	10	2	0	1	4	1	0	9	1	0	39	15	3	0	0	0	0	.263	.282	.395	.677
5	Orioles	6/27/1998	0-1	BAL	@	MON	L 1-3	.000	33	1	6	0	0	1	1	2	0	6	1	0	35	9	1	0	0	0	1	.182	.229	.273	.501
6	Orioles	6/28/1998	0-1	BAL	@	MON	L 4-8	.000	31	4	7	1	0	1	4	3	2	8	0	1	37	11	2	0	1	0	1	.226	.324	.355	.679
7	Orioles	7/15/1999	1-0	BAL	vs	MON	W 8-2	1.000	34	8	9	2	0	1	6	5	1	4	3	0	41	14	3	0	1	0	0	.265	.366	.412	.778
8	Orioles	7/16/1999	1-0	BAL	vs	MON	W 9-4	1.000	37	9	17	2	1	2	9	5	0	5	0	1	43	27	5	1	0	0	1	.459	.524	.730	1.254
9	Orioles	7/17/1999	1-0	BAL	vs	MON	W 2-1	1.000	26	2	4	1	0	2	2	6	0	7	1	0	32	11	3	0	0	0	0	.154	.313	.423	.736
10	Orioles	6/2/2000	0-1	BAL	@	MON	L 3-5	.000	34	3	9	2	0	1	2	4	0	5	0	1	39	14	3	1	0	0	0	.265	.342	.412	.754
11	Orioles	6/3/2000	0-1	BAL	@	MON	L 4-7	.000	35	4	9	1	0	3	4	5	0	5	0	0	40	19	4	0	0	0	1	.257	.350	.543	.893
12	Orioles	6/4/2000	0-1	BAL	@	MON	L 0-1	.000	28	0	3	2	0	0	0	4	0	7	0	0	34	5	2	2	0	0	1	.107	.219	.179	.397
13	Orioles	6/8/2001	1-0	BAL	vs	MON	W 5-0	1.000	30	5	9	1	1	1	5	5	1	1	0	1	38	15	3	1	1	0	0	.300	.405	.500	.905
14	Orioles	6/9/2001	0-1	BAL	vs	MON	L 2-4	.000	36	2	8	0	0	1	2	1	1	7	2	0	38	11	1	0	0	0	0	.222	.263	.306	.569
15	Orioles	6/10/2001	1-0	BAL	vs	MON	W 3-2	1.000	29	3	6	1	0	0	3	2	0	6	0	1	31	7	1	0	0	0	0	.207	.258	.241	.499
16	Orioles	5/19/2006	1-0	BAL	@	WSH	W 5-1	1.000	40	5	12	2	1	0	5	3	1	8	1	0	44	16	3	0	0	1	0	.300	.364	.400	.764
17	Orioles	5/20/2006	0-1	BAL	@	WSH	L 3-8	.000	33	3	8	1	0	0	3	5	1	5	2	0	40	9	1	1	0	1	1	.242	.359	.273	.632
18	Orioles	5/21/2006	0-1	BAL	@	WSH	L 1-3	.000	32	1	6	0	0	0	1	5	0	4	0	0	37	6	0	0	0	0	0	.188	.297	.188	.485
19	Orioles	6/23/2006	1-0	BAL	vs	WSH	W 2-1	1.000	30	2	8	0	0	0	2	0	0	4	1	0	32	8	0	1	1	0	1	.267	.258	.267	.525
20	Orioles	6/24/2006	1-0	BAL	vs	WSH	W 3-2	1.000	33	3	10	1	0	1	3	6	0	1	1	0	40	14	2	1	0	1	2	.303	.410	.424	.834
21	Orioles	6/25/2006	0-1	BAL	vs	WSH	L 5-9	.000	32	5	8	1	0	1	5	3	0	5	0	0	36	12	2	0	1	0	1	.250	.306	.375	.681
22	Orioles	5/18/2007	1-0	BAL	@	WSH	W 5-4	1.000	34	5	11	2	0	0	5	4	0	7	0	0	41	13	2	1	2	0	1	.324	.375	.382	.757
23	Orioles	5/19/2007	1-0	BAL	@	WSH	W 3-2	1.000	39	3	9	2	0	0	3	5	0	4	3	0	45	11	2	0	1	2	2	.231	.311	.282	.593
24	Orioles	5/20/2007	0-1	BAL	@	WSH	L 3-4	.000	35	3	12	2	1	0	3	3	0	6	1	0	40	16	3	1	1	1	2	.343	.385	.457	.842
25	Orioles	6/12/2007	0-1	BAL	vs	WSH	L 4-7	.000	30	4	5	0	0	2	4	4	1	2	0	0	35	11	2	0	0	0	3	.167	.286	.367	.652
	Total		64-55					.538	4,034	488	1,043	187	17	133	468	337	36	828	52	23	4,473	1,663	337	27	39	18	98	.259	.318	.412	.731