Thiago Moises RFA has a new lightweight champion, and it’s Brazil’s Thiago Moises , who had a comeback win in the RFA 35 main event. Just past the midway point of the first round, David Castillo took Moises off his feet with a big punch. Moises looked like he was in trouble, and Castillo started to take advantage. But he didn’t stay after him and let Moises off the hook.