Team Logo. The Southwest Michigan Devil Rays were a team in the Midwest League. They were the Low-A affiliate of the Tampa Bay Devil Rays. In 2007 they moved and became the Great Lakes Loons. Retrieved from "https://prosportsteams.fandom.com/wiki/Southwest_Michigan_Devil_Rays?oldid=10014" Categories: Former MWL Teams Teams in Michigan Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.