League of Ireland: Who has been Lucky so far
What is PDO? Simply PDO is [percent of shots faced that are saved] + [percent of shots taken which result in a goal]. Usually it is multiplied by 10 to remove decimal places for presentation. This is important in football because no matter the team (good or bad), their average PDO rarely strays outside a narrow band around the 1000 average. Any deviation from this band is usually put down to good luck for a high PDO, or bad luck for an unusually low PDO. This is hard to explain why this measure tends to bunch very closely around the average. It could have to do with good teams defending so high up the pitch (as the defenders become extra attackers) and this would affect the type of chances they allow their opponents. It could have something to do with good teams taking their foot off the pedal when they get comfortably in front. It could have something to do with poor teams defenders becoming so conditioned to defending that they don't give out any straight forward cha...