The Ravens last played in Super Bowl XLVII in February, 2013.
usually between 2-3 hours
super bowl 30.
The last time they won was in 1999 ...
Approximately 4 hrs long!!!!!!!!!!! WOAH! THATS LONG! I only like the comricals
Super Bowl XXXIX was there last one, in 2005, so 9 years ago at the time of answering the question.