Walsh, whose second-quarter kick cleared the crossbar with about 10 yards to spare, is 9 of 9 from beyond 50 yards this season. His kick broke the NFL single-season record of eight field goals of 50-plus yards, previously shared by Morten Anderson, who made 8 of 9 for the Atlanta Falcons in 1995, and Jason Hanson, who connected on 8 of 8 for the Detroit Lions in 2008.
Walsh's 56-yard kick also tied a Vikings record for longest field goal. Paul Edinger also had a 56-yarder in 2005.
The Associated Press contributed to this report.