The center line is actually two lines that run down the track, with the timing blocks in between them. If the driver hits one of the blocks, end of story, he/she is disqualified. If no timing blocks are involved, then the driver is allowed to go over the line closest to him or her, but not over the second line (he or she can touch the second line, but they're DQ'd if they completely cross it). This has happened a few times over the last decade or so that I can remember. Below is a picture courtesy of Mark Rebilas from Topeka in 2011. Mike Neff defeated Tony Pedregon and the result stood after officials checked the track. Just like Hagan did yesterday, Neff crossed the first line on his side of the timing blocks, but he didn't cross the second line on T. Peds side of the timing block. I want to say Doug Kalitta had a wild ride where he did the same thing 3 or 4 years ago and his win was upheld, but I might be remembering that wrong.
