Even with Madison Keys and Garbine Muguruza on her side of the draw, using the current head-to-heads, Belinda Bencic is the player who has the best chance to get the semi-final slot on her side of the draw, after the official results of the first round has been finalized.
In fact, Bencic has to win over Pironkova in the second round, then possibly face Johanna Konta in the third round, then Muguruza in the 4th round and Keys in the QFs, if based on the head-to-head. All those players are topnotch in talent and Bencic's plate is full.
Anyhow, let's see if she fulfills her potential.