The Rating system only applies to full matches on Dueling Network and only Advanced format Duels count. The experience system works thusly:
Won Match - 10
Lost Match - 5
Bonus for dueling - 2
So you win a Match you get 12 points and if you lose you get 7 points. Each Sunday the new ratings will be posted in this forum which starts today.
Please note that you cannot duel the same person more than TWICE a day.