According to the PGMO (Professional Game Match Officials) Premier League referee makes around 245 decisions per game, three times more than an average player touches the ball over 90 minutes. That's one decision every 22 seconds.
Approximately 45 of these decisions are technical - whether goal-kicks, corners or throw-ins - leaving around 200 decisions to judging physical contact and disciplinary actions.
Of those 200, around 35 are visible decisions where an action is taken (fouls, restarts), and 165 are non-visible, where play is allowed to continue.
In total, refs make around five errors per game, meaning they are right 98 per cent of the time.