But it wasn’t just the speed that won it for Lyles. It also came down to how Lyles crossed the finish line. For a look at how a photo finish is called in a race of this magnitude, we spoke with ...

We have a laser line that is pencil thin, and this camera takes anywhere from 4,000 to 20,000 frames per second, and that’s how close it is that we see at the start/finish line.