[US Democratic primaries: Number of states, including DC, not won by Biden, Buttigieg, Sanders, Warren, or Yang to be] 1 to 10

Created by Cato on 2019-11-22; known on 2020-08-21; judged wrong by Bruno Parga on 2020-08-31.

• Cato estimated 72% on 2019-11-22
• pranomostro estimated 65% on 2019-12-02
• Cato estimated 99% on 2019-12-03
• Cato estimated 0% on 2019-12-26
• Bruno Parga estimated 1% on 2020-01-04
• Cato estimated 33% on 2020-01-07
• peter_hurford estimated 5% on 2020-01-15
• peter_hurford estimated 13% and said “I forgot that Amy Klobuchar has a good chance of winning Minnesota if she is still in the race then. 538 puts this at 11%.” on 2020-01-18
• Cato changed the deadline from “on 2020-06-02” on 2020-05-28
• Bruno Parga   judged this prediction wrong on 2020-08-31.