My experience has taught me......
The Tournament CLOSES 24 hours after the 50th player SIGNS UP. If you were an early joiner, then the overall wait for the conclusion will be longer than 24 hours. The 24 hours DOES seem to be right on the mark after Player #50 joins. (For example if you were the 25th player to join - AND THEN it takes another 2 hours for the Tourney to fill up to 50 - the 24 hour clock starts running at the point #50 jopined - so you will wait 26 hours in total). NOTE: In the rare event that all 50 players complete sooner, then the program runs at that point to award the credits - but I have not seen that it has happened.
When this happens, some sort of program runs in the WGT Server and it awards and distributes the credits based on ranking (be attentive to how it works if there is a TIE for your final placing position). These credits will show up as a dollar amount in the Leaderboard and almost instantly will appear in your own account ready for use.
WGT will only let you compete in one VERSION of a Ready-Go at a time. If you are currently waiting for completion (24 hours) of a (for example) Bethpage 18 hole round, then you cannot join ANOTHER NEW Bethpage 18 Hole RRound. You can, however Join the Bethpage 9 hole rounds or any of the Kiawahs.
Regards, AtlantaCoaster