For the purpose of this discussion, “biologically male” refers to someone who experiences or would experience a male puberty. Thus, receiving the physical developments associated with that. Any discussion otherwise Is tangential. If you were to measure the physical performance of a given individual, and said performance is consistent with other males, we can indicate this person as biologically male.

Discussion about intersex persons is harder to delineate than what we are talking about here. it also is not the topic at hand.

The only reason I replied to this thread is because you asked for a single example of a trans person dominating a sport. In the article provided there is a link to that athletes page of performances at several meets. I would say by most definitions applied in the athletic world she is dominating. Whether they have an advantage due to their previously male physiology, I cannot say. I am simply outlining conditions for which one could claim that a trans person has an advantage. I am not concerned enough about this topic to scrounge up data to refine any claims we are making here, and I am doubtful the necessary data exists.