ALL pros (i.e. if you are world ranked in seniors pretty much) are 1.1.
Everyone else is 1.2, 2.1, 2.2 etc etc up to 9.2 for adults and up to 10.2 for juniors.
It takes ages to improve now as you have to a) win 3 matches against players rated higher than you and b) have a 60% win ratio in all qualyfying matches. It used to just be winning the 3 matches but they stopped this because of people just playing every week and increasing ratings by sheer number of matches, despite not actually being that good.
A qualyfying match is one in which you beat a player ranked higher, or you lose to a player ranked lower.
If you lose to a player ranked higher or beat a player ranked lower, it doesn't count to your ratio.
I just got my rating recently and am at 8.2
Playing my first tourney in a couple of weeks which should be fun
Depends on the draw as to whether I can actually make any progress. Anyone who is greater than a 6.2 would be fine as I feel I could beat them if playing well. AS long as I don't draw my doubles partner who is a 4.2........ I drew him 3 years in a row in the first round of the school champs - 6-0, 6-1, 6-0.