When I ran my version of @chrisjbillington's manifold-streakers code just now I got 40 Manifold users with streaks of over 300 days.

How many will there be on 19th May 2024? (225 days from now)

(There are currently 257 users with streaks >= 75, and 263 users with streaks >= 74, so I think it's literally impossible for there to be more than 263. I've left it as an option just in case I'm wrong.)

I will run the code at an effectively random time on 19th May. If it's very close to the top of a range, I will run it again later in the day. If the number of 300-day-ers falls in different ranges in the two runs, I will resolve to 50% for each. I'm in GMT and I won't stay up late to make sure I include all timezones, so some people on the west coast of the USA might get "left out". You'll have to take this into account with your betting, but there are several unlikely events that would have to align for this to be a problem. I guess it's possible in principle for me to manipulate the resolution by choosing what time to run my code, so I will close the market on the 18th so that I can't be tempted to manipulate.

I will trade in this market.

If Manifold abolishes streaks, or makes it impossible for me to find this information in the API, this market resolves NA.