battle of the sexes

"You've heard of what they call the battle of the sexes, haven't you?"

She thought she had.

"Well, that's what it comes from chiefly—the crowds of polygamous men and the small number of polygamous women."

As battles of the sexes go, the European Cup—a match play event between the PGA Senior Tour men and the LPGA European Tour women—might not have the same pulling power as Billie Jean King versus Bobby Riggs, but it has generated a fair amount of interest.