You have to display the home page for the log-in bonus to trigger. As long as you have the suspended race notice on your screen, it will not trigger, and does not "in the background" accumulate. And I'm sorry Haniball, not in any way calling you out or anything, but until you hit the next log-in reset you can't know you have the 200%. Are you still doing other races and getting 200%, but haven't hit that reset time yet? Unless you're just special, if you've truly been on a suspended race for 3 days (and do recall three days can fall within 2 resets (maybe 1, but that's hard math) you won't have "logged in" in that time and will lose a percentage step or two.
EDIT: I did forget that detail, Argon (next post), you're absolutely right:tup: