Peyton Manning Passer Rating in playoffs
2009 - 87.9, 123.6, 88.5
2008 - 90.4
2007 - 97.7
2006 - 71.9, 39.6, 79.1, 81.8 (aside from the single game losses in 99 and 02, this was by far his worst post season and this is the year the colts won)
2005 - 90.9
2004 - 145.7, 69.3
2003 - 158.3, 138.7, 35.5
2002 - 31.2
2001 - n/a
2000 - 82.0
1999 - 62.3
Overall Post Season passer rating is 87.6, which isn't all that much lower then his regular season rating of 95.3.