On 1 June 2003, Porto earned their league-record 86th point, beating Sporting 2-0 on the last day of the season.
The win capped an incredible season for Porto, who lost only twice and drew five times in 34 league matches. They took the table's top spot in September and held onto it for the duration to claim their 19th league title, but the first since 1999. It was also the first league title for new manager José Mourinho, who joined the club midway through the previous season.
The win over Sporting lifted Porto to 86 points--a Portuguese top-flight record. Benfica had a better season in 1972-73, winning 28 and drawing 2 of their 30 matches, but the league awarded only two points for a win at that time, so Benfica finished with 58 points. Under a three-point system, they would have finished with 86 points as well, despite having played four fewer games.
Porto's success that year extended beyond the league, as they also won the UEFA Cup, Portuguese Cup, and Portuguese Supercup.
The points record held until 2016, when Benfica won the league with 88 points.