I have often thought there are a lot of Canadians in the Seattle area. I do hang out in Hockey Circles so that might explain my theory which is obviously biased but I have met plenty that don’t play hockey. Last year I found myself outside Safeco before a Mariners game where I couldn’t help to notice all the Blue Jays Fans walking into the game. I have always thought there have been a lot of Canadians in the area so I looked to determine if there was a material difference in attendance when the Jays are in town. And boy, did I ever…..
Over the last 5 years, Toronto has the third highest attendance for midweek games in June-August. And when you exclude interleague games, Toronto has 4 of the the 15 highest attended games in that same time frame. Keep in mind that neither team was playing particularly well over the last 5 years.
Although it might not be the most scientific research, it implies there are a lot of Canadians in the area that come out for the Blue Jays.