I have no problem with creating a thread like this, but for me, I want a dedicated discussion on a particular boxing match so we can dwell on the strength and weaknesses of each fighter and give hints or tips for those who like to bet on that particular fight, the flow of discussion will always be on-topic about one particular match.
Totally agree with you. The creation of separate threads for each fight is inevitable - during the time it takes to announce, prepare and then carry out a fight in football, it has time to go through a whole rally of the national championship. This is a huge distance. If we discuss all the fights in one thread, then it will be an unreadable mess.
Maybe a better idea would be to have some of the fights that are not really that popular on this thread and have the rest of the fights that attract a lot of fans have their own thread, as people are going to want to discuss every single detail of those fights.
To me this seems like the best compromise, as it is inevitable that people are going to create threads for those fights and that the discussion is going to be concentrated there as it would be more readable for the average member a thread like that than a thread that is full of discussions about different fights.