Every player plays two 11-point matches against all other players in their four-player division. Two league points for a match win, one league point for a match loss. There is one promotion spot and one relegation spot in each division.
Each season lasts 3 months. Seasons commence on the first day of each quarter and finish at Midnight on the 25th day of third month at the end of each quarter.
Full rules can be found here
Other divisions for 2021 Q4 can be found here
The 2021 League Cup Tournament Chart is available here