The 1963 Boston Patriots season was the third season for the team in the American Football League. During their first season at Fenway Park, (switching from Nickerson Field), the Patriots stood around the .500 mark all season, as they were able to clinch a spot in the playoffs, with a victory on their final game. A loss of 35–3 with the Kansas City Chiefs, created a divisional playoffs with the Buffalo Bills. With a win over the Bills of 26–8, the Patriots moved on to the championship series to the San Diego Chargers, who defeated the Patriots, ending their season by winning 51–10.