You can get cups by winning tournaments and other events

Ladder points and stats

avatar SC points 1 new

If you are a good player, you can just get points and skip low level games.

Other stuff

Account options

avatar StarCraft Transfer 6 new

Transfer your statistic and points from one account to another.

avatar SC Clearstats 5 new

Reset your statistics and start from 0-0-0 again.

avatar SC Unmute 9 new

Use the unmute feature — and you will be able to chat again.