>>46041655Grace's slogan was "Go for broke!" which was originally gambler slang in Hawaii that got adopted by Japanese Americans during WW2.
Pretty sure it's just another Alola hint in XY that flew under the radar. Makes sense, considering there isn't a single location in Alola that isn't linear enough to be a Rhyhorn racetrack.
The original draft for Alola was a lot more connected to the Kalos games, so it wouldn't surprise me if any allusions to that were cut like the gyms