Hey there, TnT ...
I'm not competitive, except with myself. I alway want to outdo what I did the last time. But others? No, I don't "race" well. There's usually an underdog who needs to win worse that I do & I'm fine with their taking it. I have no idea whether that's really a bipolar trait or not.
I don't set myself up to fail ... just manage to get out of competitive situations.