I don’t have any good examples that I know of, but I am very curious. To me though, a rivalry is a rivalry when two or more of people are closely competitive. But is it really a rivalry anymore when someone has more victories over the other? I don’t think so.
The horse has been dead for thousands of years, and the dust of its former corpse has scattered to the wind. Yet somehow, it’s still being beaten because anything less would be “woke.”