Tips for watching the World Athletics marathons this weekend

Hi all,

I’ve got tickets for some of the stadium events at the World Athletics Championships, but I’d also love to watch the marathon from along the course (with my 6-year-old). I assume the public is free to watch from the sidelines. Thinking of going to see the women’s marathon this weekend, and maybe the men’s as well (on Monday).

I live in Tokyo and can get around by train, on foot, or with my mamachari, so I’m flexible. I assume road closures won’t affect trains or bikes too much, but if anyone has general tips on good areas to watch from—or places to avoid—I’d really appreciate it.

Thanks!