Mr. Bryson Dechambeau has been on tour for two years professionally following the 2016 Masters. His clubs and swing technique has garnered a lot of press, media, and questions. He uses the one-length iron concept, and his swing is not the typical full rotational swing. But is it a vertical swing?
The answer is, not wholly. Dechambeau has characteristics of a vertical swing, but his backswing is the critical spot where it is not vertical. If you review his swing, you will notice the club goes into the sacred burial ground - as we call it. The club is too far back behind him, and he is working against gravity as he begins his swing.
Does his swing work for him? Yes! But remember he is young, healthy, flexible, and has a lot of talent. I would love to see Mr. Dechambeau fully embrace a vertical swing. Using a completely vertical swing I have no doubt he could go far in his career. He is very focused on the science of the swing and his attention to detail is far beyond most PGA Tour players.