American football rules
Super Bowl LI was the first Super Bowl to go into overtime with a 28-all tie between the Atlanta Falcons and New England Patriots, which the Patriots eventually won with James White scoring a touchdown on the Patriots' first drive.
2011 New York Giants season
The 2011 Giants were the first team in NFL history to reach the Super Bowl with a negative point differential (minus-6, 394 points scored, 400 points allowed). With a 9–7 record, the Giants became the third NFL team to win fewer than 10 games in a 16-game season, and reach the Super Bowl. but became the first of the three to win the Super Bowl. The previous teams to go 9–7 and reach the Super Bowl (the '79 Rams, who only needed two playoff wins were the first, and the 2008 Arizona Cardinals) were both defeated by the Pittsburgh Steelers. Additionally, upon defeating the Patriots in Super Bowl XLVI the Giants became the first NFC East Division champion to win the Super Bowl since the Dallas Cowboys in 1995 (the Giants were a Wild Card team when they won Super Bowl XLII). The Giants were also close to rematching the Baltimore Ravens in the Super Bowl for the first time since 2001.