Unless it moved around 35-40 years ago, I believe it is a separate location.

I attended the Jai Alai fronton a few times in the late 1980's to early 1990's and it was on Avenida Revolucion. It is the only fronton that I know of in TJ.

The architecture of this Fronton was very ornate and "palace-like", so I am pretty sure it was the 'Palacio'.

I used to attend Agua Caliente greyhound races this same time period, after they stopped racing horses, and it was a little bit of a crazy taxi ride from Revolucion to get there.

So if memory serves correctly, it was different locations..