Kacper Filipiak is a Polish former professional snooker player. He turned professional in 2011 after winning the European Under-21 Championship, and became Poland's first player on snooker's professional Main Tour. He was the first Polish player to make a 147 in competitive competition, doing so in a PLS Top 16 match against Marcin Nitschke. He was also a professional player from 2019 to 2021, having qualified by winning the 2019 EBSA European Snooker Championship.

The sport of professional snooker has had a world ranking system in place since 1976. Certain tournaments were given ranking status, with the results at those events contributing to a player's world ranking. The events that made up the 1976–77 snooker season were the first to use ranking points, awarding points from earlier seasons. Originally, the world rankings were decided based only on results in the World Snooker Championship, but other events were later added. The system used for the 2020–21 snooker season was first used in the 2010–11 season, where players were awarded ranking points based entirely on prize money won from these events. The rankings are based on the prior two seasons, with ten revisions after specific tournaments throughout the season. These revisions are used as official rankings, with points awarded in the current season overwriting those from two years prior.