I had a brief look at your league, and m first thought was: mabye they changed the system along with the switch to the new time of the voting.
But then, seeing the player who won the award has a lot of games played, and does apear in the assists leaders list, plus the fact he averages a decent amount of minutes/game it makes him a player to be in the mvp list.
Why hasn't the 2nd in the voting not won the award? he is the leading player in the most points scored list of the league, which is often a big help in the voting?
I think because he played slightly less minutes on average, but more importantly, played less games.
The winning player also is a NT player, maybe that adds to the popularity of the player, I don't know, but it's possible...
nyway, after a brief look, I don't find your result so odd, taking my comments into account.
I might be off, and it might work otherwise, but to my feeling, it still works the way I described...
It would be interesting however to get other theories from people experiencing somethnig diffrent, to compare them, and maybe we might find how it realy works.
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