System is as stated before. For Consolation tournament there is 15 points to grab i think, scrimmage is 5, continental championships are 30 i gues. For WC there is 50 i think (i dont know about playoffs or final). Only result of the game matters, so once you win WC game you get your share of points according to result (margin) and ranking difference. So once you beat no1 ranked team by 10pts you might get for ex 80% of points - so lets say 40 and loser gets 10 if this was WC game. Than you have to minus points obtained 28 weeks ago and you will see how many points you are getting or losing for this weeks change (wednesdays are ranking updates). No streaks in counting as far as i know. Take those numbers as rough aproximate.
cheers
1 BBB, 20 Leagues, 10 Tournaments, 3 Europe Titles (SVK), 2 World Bronzes (SVK), 2 Europe Bronzes (SVK,FRA), 42 Seasons NT coaching