Does this shot have a name?

Afternoon, so I’m trying to research how to get better at a particular style of shot but I have no idea how to describe it for a search engine or if it even has a distinct name. Essentially it’s for action sports (in this case MTBing) and it involves a slow shutter and the subject moving directly towards the lens. As the subject moves towards you, you compensate and keep the subject in focus best you can by pulling from say 100mm to 50mm on a telefocal lens. This depends on how fast the subject is moving to how far you have to pull the telefocal lens backwards. I have done it a few times with success some involving a flash others without but don’t know if it has a name. Maybe a pulling pan? Hoping there’s no name for this so i can make up a silly one