Professor Lucas Lepri shows how to pass the half guard and get to the mount position. He starts in half guard with his knee out and foot trapped. Lucas explains how to keep his knee tight and use shoulder pressure to control the opponent. He then isolates the opponent's arm and gets a double underhook. From there, Lucas applies pressure and opens the opponent's legs to pass to mount. He also shows how to trap the opponent's arm and prevent them from escaping.