Seasons and overall records

Main article: List of Seattle Seahawks seasons

As of the end of the 2015 season, the Seattle Seahawks had competed in 40 NFL seasons, dating back to their expansion year of 1976. The team has compiled a 315–313 record (15–14 in the playoffs) for a .502 winning percentage (.517 in the playoffs). Seattle has reached the playoffs in 15 separate seasons, including in the 2005 season when they lost Super Bowl XL to the Pittsburgh Steelers, the 2013 season when they defeated the Denver Broncos to win Super Bowl XLVIII, and the 2014 season when they lost Super Bowl XLIX to the New England Patriots. In the 2010 season, the Seahawks became the first team in NFL history to earn a spot in the playoffs with a losing record (7–9, .438) in a full season; this was by virtue of winning the division. The Seahawks would go on to defeat the reigning Super Bowl champion New Orleans Saints in the Wild Card round, becoming the first team ever to win a playoff game with a losing record. Until Week 7 of the 2016 season, the Seahawks had never recorded a tied game in their history.