Noble's $500 restricted freeroll

i was just wondering if anyone knew what the restrictions for the freeroll were
i'm guessing its a certain amount of raked hands as it usually is, but they always state it
it says open to all who received invitational email
i was just wondering if anyone knew what the requirements were

The freeroll is for anyone who played "x" number of raked hands at the money tables (.25/.50 and up) the previous day. When you have played enough raked hands, you will receive a confirming email with the password for entry into the following night's freeroll.

from what i got you have to play AT LEAST 20 hands in the previous 24 hours> i assume they mean 20 real money raked hands and then they email you the password <buckster436:icon_colo