happyjuggler0: 13 Point match, and two of them per player? The creator definitely should have used the Fischer Clock for timing it. Even so, that's a lot of games.
Hrqls: I am here 18 months only, and I have already won 32 backgammon tournaments (and 159 in total). One of them was a 21-point round-robin.
It really depends a lot on which tournaments, and who is in there. There are about a dozen players you should avoid, without them this tournament would have been done in two to three months; but a single one of them is enough to drag it to 5 years.