They'd need to run separate tournaments with separate sponsors, tickets for fans etc. Otherwise how do you determine which money belongs to the men and which belongs to the women.
I think if they split them both would suffer but the men would end up with better sponsorship and bigger crowds. But that's only my opinion and not backed up with any facts.
Not sure on tennis
Always watch the ads with sport, because it gives you an idea of the demo watching it
If you see more tampax ads than lynx, its the female viewers who are generating the coin
Agree though tennis is better with both together
Also worth reminding of some of the mls situation. Female footballers did the math, and confirmed their comp earned more than the men's, but they were paid 10% of what the men were