Lex Fridman has covered topics related to competitions on his podcast, the []. The discussions range across various competitive domains including competitive strategy games like poker, chess, and also delve into competitive sports such as jiu-jitsu. Notable mentions related to competition include episodes discussing the psychological aspects of greatness, strategic negotiation games, and the competitive nature of sports and games.

If you're interested in specific episodes that focus on competitions, you can explore the podcast further or I can help pinpoint certain episodes discussing these topics in detail.