I couldn’t decide on whether to do “what’s the largest playoff margin,” or “who holds the record for most interception return yards in a season.” If I can guess both, you can. The San Francisco 49ers have a couple of Super Bowl victories by more than three possessions. 55-10. I don’t think anyone will forget that.
Running down the top-five, Zack Bronson had 165 interception return yards in 2001. Tony Parrish holds spots three and four for his work in 2002 and 2003. He had 204 and 202 yards respectively.