"This" and "next" is very relative terminology. You see for me, talking in a future tense about an event and using THIS or just saying the name of the day means it is the next occurrence of that day.
"I'll be going to match on Saturday", means "whatever day we are on, the next occurrence of Saturday is when I will be going to football". You cannot be referring to the Saturday that's in the past, even if it is in the same week as you are. Whenever your definition of the week starting is; for me, I've shifted mine to run Sunday-Sunday because that's the definition that a S.O.'s works uses to determine shifts and holiday weeks.
"Are you going to the match this Saturday?" means the same as just "Saturday".
Now, if you are going to use the word NEXT when you already have two acceptable ways of specifying the date as THIS COMING Saturday... three acceptable ways... then you must be referring to the Saturday AFTER the 1st future Saturday on the Calendar.
If you are using a past tense, of course, then you can't use next at all. You simply don't say "Did you see the game next Saturday?" Unless of course you have a private box and it's blue with a flashing light on the top.