[ 1, 2, 3, 4, 5, 6, 8, 12, 13 ]
Those are only the old masteries. But the new PoF masteries are not included in that list.
https://www.gw2gh.com/ - A GW2-Guild-Hall.
Register and check your guild leaderboard to see who is the best in your guild and who finished achievements first.