X definitely means score draw. The reason being that when back in the day people did the Football Pools, they had to pick so many score draws from so many featured games. They would mark the numbered matches with an X, and so score draws came to be associated with the X! You may now all sleep easily in your beds tonight with this information!! (Unless you have nothing to get up for tomorrow, in which case you can arrest your losing streak/ maintain 13 match unbeaten run/ wheel and deal throughout the close season (delete as applicable))