Just some FYI:
Records
2012 Head-to-Head Record Baltimore 3-2 (2-1 at Was; 1-1 at Bal)
2011 Head-to-Head Record Tied 3-3 (Bal 1-2 at Was; 2-1 at Home)
2010 Head-to-Head Record Baltimore 4-2 (1-2 at Was; 3-0 at Bal)
2009 Head-to-Head Record Baltimore 4-2 (2-1 at Was; 2-1 at Bal)
2008 Head-to-Head Record Tied 3-3 (Was 2-1 at Home; 1-2 at Bal)
2007 Head-to-Head Record Washington 4-2 (1-2 at Was; 3-0 at Bal)
2006 Head-to-Head Record Tied 3-3 (Was 2-1 at Home; 1-2 at Bal)
2005 Head-to-Head Record None
2004 Head-to-Head Record None
2003 Head-to-Head Record None
2002 Head-to-Head Record None
2001 Head-to-Head Record Baltimore 2-1 (0-0 at Mon; 2-1 at Bal)
2000 Head-to-Head Record Montreal 3-0 (3-0 at Mon; 0-0 at Bal)
Home Record Washington 20-14; Baltimore 20-15
Away Record Washington 21-14; Baltimore 20-16
Current Streak Washington (W1); Baltimore (L1)
Record vs. American League Washington 10-7
Record vs. National League Baltimore 10-7
All-Time Interleague Records Washington 135-144; Baltimore 125-157
