Tomato in #100 Smartpot

I figure, my ganj is growing like crazy in these in the #5 size, I wonder how big a single tomato plant, a Brandywine Heirloom to be exact. I'm using layered soil, Supersoil on the bottom, Black Gold in the middle, and Happy Frog on top, Maxsea nutes, and of course, the big, bad, 100 gallon Smartpot.

I have a #200 on order for my other veggies, should be able to grow my cucumbers and squash in it.