The 20 highest announced attendances in Nats Park history:
44,685 Saturday 20th August 2011 vs Phillies
41,985 Thursday 25th June 2009 vs Red Sox
41,727 Sunday 21st August 2011 vs Phillies
41,530 Wednesday 24th June 2009 vs Red Sox
41,517 Tuesday 23rd June 2009 vs Red Sox
41,290 Monday 5th April 2010 vs Phillies [season/home opener; highest of 2010]
40,386 Monday 13th April 2009 vs Phillies [home opener]
40,325 Friday 18th June 2010 vs White Sox [Strasburg start]
40,315 Tuesday 8th June 2010 vs Pirates [Strasburg debut]
40,043 Tuesday 27th July 2010 vs Braves [Strasburg start]
39,824 Sunday 29th June 2008 vs Orioles [highest attendance of 2008]
39,638 Saturday 2nd July 2011 vs Pirates [‘traditional doubleheader’]
39,479 Saturday 28th June 2008 vs Orioles
39,434 Sunday 30th March 2008 vs Braves [season/home opener, ballpark debut]
39,214 Saturday 3rd July 2010 vs Mets [Strasburg start]
39,055 Thursday 31st March 2011 vs Braves [season/home opener]
38,049 Saturday 31st July 2010 vs Phillies
37,841 Friday 19th August 2011 vs Phillies
36,614 Saturday 18th June 2011 vs Orioles
36,487 Saturday 19th June 2010 vs White Sox