Well, I predicted that the winner of the Johanna Konta - Serena Williams match would win the Australian Open. The winner turned out to be ... Serena Williams.
The women's semifinals thus consist of Coco Vandeweghe v. the truly remarkable (and becoming more so every day) Venus Williams, with Serena Williams set to face Mirjana Lucic-Baroni. Three Americans in the semis, two of them being the ongoingly impressive Williamses. And three of them are also in their thirties (Vandeweghe is the twenty-something of the group).
Lucic-Baroni beat Karolina Pliskova (I still don't know who that is). It was a good three-set match, judging from the score (6-4, 3-6, 6-4).
Well, we'll see how this prediction does. Hope she doesn't have to play Venus in the final.