Here's a URL to the above mentioned ORACLE plane:

http://www.poweraerobatics.com/as-photogal.htm

I believe the guy in question was Sean Tucker, but not sure. I do specifically remember the announcers talking about his plane, it's 'custom' status and how it had a high power to weight ratio to be able to 'hang on the prop'. They were using those terms ont he ESPN show a few weeks ago. It's hard to tell from video because he was not low to the ground so there were no stationary object for me to personally compare against however he was vertical and the announcers commented on the planes ability to do this so I'm inclined to believe he was doing it. Although wouldn't be the first time someone hyped up their event for the sake of conversation.