Turns out the sci-fi filmmakers got it backwards. All those '70s and '80s dystopias like "Rollerball," "The Running Man," "Death Race 2000," imagined futures in which sports were full of gadgets and gimmicks like armored cars, rocket-powered motorbikes, and electrified arenas. In reality, we got the opposite - the padding's gone, and the high-tech monitoring equipment is nowhere to be found.