Comparative dates on which the Nationals notched their 80th win, each season:
2012 - 31st August (131st match of season)
2014 - 7th September (141st match)
2013 - 17th September (150th match)
2005 - 27th September (158th match)
2015 - 28th September (156th match)
2011 - 28th September (161st match) - final win of season
---
2007 - finished 73-89
2006 - finished 71-91
2010 - finished 69-93
2008 - finished 59-102
2009 - finished 59-103