Solved

Tied points - who wins?

Rankings for teams tied on equal points is best finishing position. So if you have won a race and his best position is second then you are ranked higher.
If you are still tied because you both have the same highest position (I.e. you have both won a race) then the person who did it first is ranked higher.

Note: There is a known bug, the Australia race is ignored for the purposes of the above tie break. So if you win in Malaysia and you are tied on points at the end of the season you will be ranked higher even if your opponent won the Australia race.