If the person is really psychotic - a revenge factor also comes into play - the need to want to get back at or prove people wrong...which might lead one to make-up races. That is better than sitting around stewing over being caught - since you have to wait a while to race again - at least a race you have to plan out to the specs he needs (different states, etc).
Not the typical actions of a psychotic person. More likely indicative of a personality disorder. Of course diagnosing somebody takes a lot more than speculation from an internet thread. Psychotic people usually lack the long term planning and mental organization (executive function) skills something like this would take.