I am doing the rent a site model and I noticed that my sites have different rankings for the same keyword depending on where I search.

I am not in this particular city so when I search for the keyword it shows that I am #1. I have logged out of google, cleared cache, asked a friend and even did scroogle and it still says #1. When I change the search location on the side and keep the exact same keyword, it then changes me to ranking #9. Anybody ever deal with this before? How do I fix it?