point at where we are wrong in our numbers. It is in the open and you can check each decision. In fact those few games when the ref made mistakes that went against United they dropped points. And maybe that is the best indication of them all that shows how important the refs can be. 5 Responses to How the Refs treated Man U last season wow just wow. i wonder if there is a connection between refs, fa, manutd and thats what rafa was on about years ago when he said about the exec tickets for fa at utd . always thought i was just biased lol great work , Think this is really interesting analysis, but has more value when you look at the 'bigger picture' -- for example when you show the average bias for United home and away games. When you look at specific ref bias, including refs who have only reffed one United game, even though there may be multiple decisions in a game, you're still effectively looking at a sample size of 1. Obviously easier said than done, but if you did the same ref analysis based on those who have reffed at least 5 (or preferably 10) United games over the years, you would probably see a different picture. Your weighting is an interesting concept, but what might also add context to how much weight the good and bad decisions have given what the score is at the time. So a key decision