Kanza Category Change

I've searched and haven't found any answer yet and also emailed from the Kanza website, but is it possible to register in one category and then switch before race day?  Say if I wanted to go from open to single speed?  Thanks for any help.


**Edit
Just got an answer and category changes are accepted until early May.

Does this also apply for going from 200 to 100?

I doubt it, I just was asking about going from open to single speed or fatbike in the 200.  

reubenc wrote:Does this also apply for going from 200 to 100?

You could probably easily sell your 200 and buy a 100 on the transfer thread.