How does Zoho CRM decide the order of potentials?

I am trying to write a code that grabs the newest created potential record. I thought I could use the .Get() method using the index of zero, but that doesn't always work because of the way Zoho sorts the records. The records aren't always sorted with the most recently created record being first in the list. I have not been able to figure out how Zoho decides which record to puts at the beginning of the list. Can anyone at Zoho tell me how this works? If not, or it is totally random, does anyone have another way to get the most recently created potential record?

Thanks in advance!