Roto a person spinning

I am about as new as you get to Mocha so forgive my lack of knowledge.

I have a scene where there is a woman spinning 360 degrees. I want to cut her out of the scene entirely so that I can replace with a graphical background. I track her face but, as expected, once her face turns away the track stops. How can I track her so that I get all the data as she turns around? Is there a better/different way to do this? Thanks in advance.

You will probably have to use multiple overlapping shapes for this OR switch to translation only for those parts where she turns away.