High Quality Content by WIKIPEDIA articles! The San Francisco 49ers 1988 season was their 43rd season in the National Football League. The season was highlighted by their third Super Bowl victory. In 1988, the 49ers struggled. At one point, they were 6-5 and in danger of missing the playoffs but rose to defeat the Washington Redskins on a Monday night, eventually finishing the season at 10-6. They gained a measure of revenge by thrashing the Minnesota Vikings 34-9 in the first round. The 49ers then traveled to Chicago`s Soldier Field, where the chill factor at gametime was 26 degrees below zero. They defeated the Chicago Bears 28-3 in a NFC Championship game upset.