<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by iamwade:
is it possible to register for both the aa platinum challenge and the gold challenge at the same time in case you fall short? i just don't feel confident in my understanding of fare classes and which award you one q point for one mile. i'd hate to miss out on a technicality because i only got half a mile per mile flown.</font>
First of all, you should really either post the question on the AA forum or do a search. The question has been asked and answered many times.
Anyways, you can't do simultaneous challenge in the sense of double-dippling. You can do consequetive challenges, though.