Rules of snooker satisfied that the player was only positioning the ball, and not playing a shot or preparing to play one. When a player commits a foul, the opponent receives penalty points equal to the value of the ball "on", the value of the highest valued ball involved in the foul, or 4 points, whichever is greatest. When multiple fouls are made in one shot, only the most highly valued foul is counted. Penalty points are therefore at least 4 points and at most 7. Not hitting the ball "on" first is the most common foul. A common defensive tactic is to
Snooker world ranking points 2017/2018 Snooker world ranking points 2017/2018 The official 2017/2018 snooker world ranking points for the professional snooker players on the World Snooker Main Tour in the 2017/2018 season are based on performances in ranking tournaments over a two-year rolling period. The rankings at the start of 2017/2018 season are determined by prize money earned in the 2015/2016 and 2016/2017 seasons and are updated after every tournament carrying ranking status; the players are re-ranked at the beginning of the current season after removing players relegated at the end of the previous season from the ranking list. As points are accrued from tournaments