
Polymarket shows market prices. Foretrace adds AI probability estimates, opposing evidence and a price-dependent outcome or pass decision for each open market.
Sampled market observations, not AI forecasts. Lines connect available observations. Legend values are current provider quotes; chart points may be older.
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This market is closed. Its historical data remains available.
How research worksThis market refers to the first presidential debate between Kamala Harris and Donald Trump during the 2024 election cycle. This market will resolve to "Yes" if the first presidential debate between Kamala Harris and Donald Trump, currently scheduled for September 10, 2024 has fewer than 50,000,000 viewers according to Nielsen. Otherwise, this market will resolve to "No". If no in-person debate happens before election day, this market will resolve to "No". The resolution source will be information from Nielsen, specifically their Persons 2+ statistic. If a debate takes place, and Nielsen does not provide viewership information for the debate within 10 days, another credible source may be chosen.
This market is closed. Its historical data remains available.
How research worksThis market refers to the first presidential debate between Kamala Harris and Donald Trump during the 2024 election cycle. This market will resolve to "Yes" if the first presidential debate between Kamala Harris and Donald Trump, currently scheduled for September 10, 2024 has 50,000,000 (inclusive) to 55,000,000 (exclusive) viewers according to Nielsen. Otherwise, this market will resolve to "No". If no in-person debate happens before election day, this market will resolve to "No". The resolution source will be information from Nielsen, specifically their Persons 2+ statistic. If a debate takes place, and Nielsen does not provide viewership information for the debate within 10 days, another credible source may be chosen.
This market is closed. Its historical data remains available.
How research worksThis market refers to the first presidential debate between Kamala Harris and Donald Trump during the 2024 election cycle. This market will resolve to "Yes" if the first presidential debate between Kamala Harris and Donald Trump, currently scheduled for September 10, 2024 has 55,000,000 (inclusive) to 60,000,000 (exclusive) viewers according to Nielsen. Otherwise, this market will resolve to "No". If no in-person debate happens before election day, this market will resolve to "No". The resolution source will be information from Nielsen, specifically their Persons 2+ statistic. If a debate takes place, and Nielsen does not provide viewership information for the debate within 10 days, another credible source may be chosen.
This market is closed. Its historical data remains available.
How research worksThis market refers to the first presidential debate between Kamala Harris and Donald Trump during the 2024 election cycle. This market will resolve to "Yes" if the first presidential debate between Kamala Harris and Donald Trump, currently scheduled for September 10, 2024 has 60,000,000 (inclusive) to 65,000,000 (exclusive) viewers according to Nielsen. Otherwise, this market will resolve to "No". If no in-person debate happens before election day, this market will resolve to "No". The resolution source will be information from Nielsen, specifically their Persons 2+ statistic. If a debate takes place, and Nielsen does not provide viewership information for the debate within 10 days, another credible source may be chosen.
This market is closed. Its historical data remains available.
How research worksThis market refers to the first presidential debate between Kamala Harris and Donald Trump during the 2024 election cycle. This market will resolve to "Yes" if the first presidential debate between Kamala Harris and Donald Trump, currently scheduled for September 10, 2024 has 65,000,000 (inclusive) to 70,000,000 (exclusive) viewers according to Nielsen. Otherwise, this market will resolve to "No". If no in-person debate happens before election day, this market will resolve to "No". The resolution source will be information from Nielsen, specifically their Persons 2+ statistic. If a debate takes place, and Nielsen does not provide viewership information for the debate within 10 days, another credible source may be chosen.
This market is closed. Its historical data remains available.
How research worksThis market refers to the first presidential debate between Kamala Harris and Donald Trump during the 2024 election cycle. This market will resolve to "Yes" if the first presidential debate between Kamala Harris and Donald Trump, currently scheduled for September 10, 2024 has 70,000,000 (inclusive) to 75,000,000 (exclusive) viewers according to Nielsen. Otherwise, this market will resolve to "No". If no in-person debate happens before election day, this market will resolve to "No". The resolution source will be information from Nielsen, specifically their Persons 2+ statistic. If a debate takes place, and Nielsen does not provide viewership information for the debate within 10 days, another credible source may be chosen.
This market is closed. Its historical data remains available.
How research worksThis market refers to the first presidential debate between Kamala Harris and Donald Trump during the 2024 election cycle. This market will resolve to "Yes" if the first presidential debate between Kamala Harris and Donald Trump, currently scheduled for September 10, 2024 has 75,000,000 or more viewers according to Nielsen. Otherwise, this market will resolve to "No". If no in-person debate happens before election day, this market will resolve to "No". The resolution source will be information from Nielsen, specifically their Persons 2+ statistic. If a debate takes place, and Nielsen does not provide viewership information for the debate within 10 days, another credible source may be chosen.
Retrieved 10/3/2026, 8:04:01 PM UTC. Provider data is cached for up to 60 seconds. The upstream quote timestamp can be older.