"...the first organized contest was held in Vancouver B.C. 2012."
If you're talking overall (and not specific to your Graffiti event), then nope.
I think that honor goes to the late Doc Passen. He hosted an Old Time Combat event at his home town in Jasonville, IN back in the early 1990's. I was privileged to be a part of it. Good turnout, lots of fun. Johnson powered Voodoo's, Flying Saucers, Equalizers, Big Irons, on and on. A really fun day.