I just had to add this, when I see people talking about the refs making "mostly" good calls. For myself personally, if I direct a major pool tournament, I can expect to make 75-100 calls or rulings over the course of the event. My goal is to get EVERY ONE right! If I miss one call I have not had a good tournament. Two mistakes in one week is a disaster imo. A good ref does not have the luxury of "missing a ball" once in a while. He needs to make them all!
That's the yardstick I gauge myself by. When I can no longer do this, I will retire. The above includes when to give a warning, how much time to allow on a break etc. I WARNED Dennis Orcollo when he put a small towel over the side pocket. The second time he would have lost the game. It didn't happen again. This is an example of a judgement call. When Francisco was late for his match, we put him on the clock. After five minutes we docked him one game. That's when he showed up. He was not happy about the penalty, but accepted it. This was during the Group stages of the Masters, when we were playing a "roll on, roll off" schedule, with no set times. He had a responsibility to be in the arena and prepared to play.
John Morra was down on a ball when the clock ran out. I called FOUL, and then he shot. He complained saying he was already down on the shot. I reminded him that we made it clear at the players meeting you must shoot before the clock runs out. This is different than how the women play on the WPBA. They will allow you to shoot when you are down on the ball. John was the only player with a shot clock penalty.
These are examples of the types of decisions I must make during the course of a tournament. I always try to use good judgement when making them. Player misbehavior can be testing for me. Usually a warning will suffice, but not always. One time at the Open, I gave Earl a one game penalty for using profanity, after he had been warned. We never had another problem with him after that. This was about ten years ago.
P.S. You rake the balls, you lose the game. PERIOD!
Yep, when your put in a tough situation one error is definitely too much, I remember calling a hit in the Jr. Nationals, very close match at Magoos, forgot the kids name but he was the best player from Puerto Rico and coulda' beat Shane McMinn as well as he was playing, there was a spilt hit shot at a critical point in the match that I was asked to watch. I took my time understanding what the balls would do with a good hit and a bad hit & I had to make the call instantly, I did, I somewhat questioned my judgement, the player did not complain but I did make the correct call , NOT a fun position to be in, and it doesn't get any easier with time, and like Jay said 2 in one day is way too much. Refs cannot allow players to rush em into doing their job.