The teams are based on where each player spent their last year of formal education.
Region 1 is between longitudes 90W and 90E, going across the Greenwich Meridian (0). That is, it is all places with longitudes smaller than 90. Region 2 is the rest of the world.
Region 1 Region 2 Anatoly Peter 3-1 7,-6,7,8 Angie Mario 2-3 5,-8,-4,8,12 Krish Rock 3-0 9,9,6 Weiliang Homa 3-1 4,-9,7,7 Wei Mark 0-3 10,9,8 Fernando Mark 1-3 6,8,-10,9 George Chew 2-3 -7,11,-9,8,4 Wei/George Homa/Chew 3-0 8,9,3 Krish/Sean Mario/Peter 3-0 8,2,9 Anatoly/Jeff Rock/Ron 3-0 5,2,6 Fernando/Angie Ron/Homa 1-3 10,8,-7,5 Region 1 (lon < 90) wins 6-5.