How can I stop my mare from playing "catch me if you can"?

I have a 6 year-old Thoroughbred/Mustang mare that LOVES to play "catch me if you can" when I go out to the paddock to get her. She used to be boarded with a TB mare and I worked with her until we overcame the game. I recently moved barns so now she's boarded with about 7 other horses and her old habits have come back. It's like a game to her because she runs around for roughly 30 minutes, not letting me get near enough to touch her, but once I make contact with her body (even if its just brushing my fingers on her barrel) she stops running and is like "oh darn you tagged me. I'll behave now. I take out grain every time I go to get her, I don't always work her when I bring her in and I've recently started just going out there to see her but not actually bringing her in. Is there anything else I can do to stop her bad behaviour?