I’m not sure how this is even possible, but my Google Calendar says it’s true, so it must be right.

Saturday Sept 7…

The Mariners are at home for a game that starts at 6:10 (See proof here.)
The Sounders play across the street at 7:05 (See proof here.)

Mariners games usually take 2:45 – 3:00 hours. Sounders games by definition take 1:45 (90 minutes plus 15 minutes for halftime).

That means 2 stadiums full of people, across the street from each other, will empty out at EXACTLY the same time, on a Saturday Night. I guess the total will still be slightly less than a Seahawks game, but it still seems like an invitation for chaos.