We have walleye in Idaho now, in a few reservoirs. They were planted years ago and have done well. The state record is 34.5" and 17.88lb. I have no idea how that stands up to other states.
We also have walleye tournaments. I haven't heard of any cheating but you have to know it's going on.

“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell

It's not over when you lose. It's over when you quit.