But I'm curious

Is there a specific board for sports base discussion aside gambling board? I think all sports related topics are being published and discussed in the gambling board? If that's not the case, then a lot of topics do not belong to that board.
I can say more than 80% of posts in the gambling board (gambling discussion to be precised) are not about actual gambling but about different sports and league discussions which are the dominant discussions with high numbers of posts.
Is off topic the right place to have discussion about sports or we need another board to handle that?
You have a point there, most of topics there isn't directly related withgambling, but there is close relation as people discussing results of games and talking about upcoming games. While topic about Football stars and career of their children - it's a bit more difficult to relate this topic with gambling.
Maybe sports discussion board would be solution which would make situation a bit better, but somehow I don't believe that theymos is going to make it.
There's a way, but I doubt the admin will consider this. Maybe we could have child boards for sports betting discussions. We could have 3-5 popular sports as child boards. So the hierarchy would be something like this.
Bitcoin Forum > Economy > Marketplace > Gambling > Gambling Discussion > Sports Child Boards A/B/C
I don't think that we need separate child board for every major sport. One child board would be enough IMO
Also, I have another idea. What if we limit the league threads by only allowing 5 to 10 of the strongest/top leagues? We can make the league selection method a bit more objective by using a third party points system like Opta Power Rankings [1]. For leagues outside of the top 5/10, we can merge them into a "Rest of the World Leagues Discussion Thread".
No offense, but this idea doesn't sounds good. Discussing multiple leagues in single topic would be huge mess. And I actually like these separate topics of smaller leagues - it attracts less spammers, unlike topics about major leagues like EPL or La Liga. Mostly people who are genuinely interest about these leagues is posting there.