I went through the 137 remaining and I'm at least 40 had Pitt. This was based on people with multiple entries in the pool and how they normally had different selections for each entry and everyone else who had already selected Atlanta.
If Atlanta wins tomorrow, there should be around a maximum of 90-97 left in the pool.
ETA: Boy was I wrong. Only 16 had Pitt. Everyone must be loading up on Atlanta.