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icon for Democratic nomination odds leader on October 31?
Politics·Primaries

Democratic nomination odds leader on October 31?

icon for Democratic nomination odds leader on October 31?
Politics·Primaries

Democratic nomination odds leader on October 31?

Jon Ossoff 51%

Alexandria Ocasio-Cortez 34%

Gavin Newsom 13%

Kamala Harris 4.3%

Polymarket
NEW

Jon Ossoff 51%

Alexandria Ocasio-Cortez 34%

Gavin Newsom 13%

Kamala Harris 4.3%

Polymarket
NEW
icon for Jon Ossoff

Jon Ossoff

$2,624 Vol.

51%

icon for Alexandria Ocasio-Cortez

Alexandria Ocasio-Cortez

$1,717 Vol.

34%

icon for Gavin Newsom

Gavin Newsom

$301 Vol.

13%

icon for Kamala Harris

Kamala Harris

$212 Vol.

4%

icon for Josh Shapiro

Josh Shapiro

$321 Vol.

1%

This market will resolve according to the option with the highest hourly odds value in the "2028 Democratic Nomination" listing on PredictionMarketOdds.com for the "Time Window (ET)" ending at 12:00 PM ET on October 31, 2026. If that option is not a listed outcome of this market, this market will resolve to "Other". An hourly odds value is the value in the "Odds of Happening" column that PredictionMarketOdds.com publishes for an option for a one-hour "Time Window (ET)", as shown on the listing page and in the "Odds History" graph on that option's detail page. Hourly odds values are compared at the precision published by PredictionMarketOdds.com (one tenth of a percent). If PredictionMarketOdds.com publishes "NO_PRINT" for an option for the specified window, that option's most recent published hourly odds value before the specified window will be used. If PredictionMarketOdds.com has not published anything for the specified window for an option (neither an hourly odds value nor "NO_PRINT"), this market will remain open until a value or "NO_PRINT" for that window is published, and may remain open until November 7, 2026, 11:59 PM ET for that purpose. If nothing has been published for the specified window by that time, that option's most recent published hourly odds value before the specified window will be used. An option with no hourly odds value published in that period will not be considered. If two or more options are tied for the highest value, the tie will be broken in favor of the tied option with the higher value in the most recent earlier window in which their values differed. If the tie persists, this market will resolve in favor of the tied option whose listed name comes first alphabetically. If the underlying market is officially decided before the listed end date, this market will resolve in favor of the outcome of the underlying market if it is a listed outcome, and otherwise to "Other". If a published hourly odds value is clearly erroneous as a result of a technical or operational error, this market may remain open for up to an additional 48 hours after that value is first published to allow for a correction. A corrected value will be used in place of the original. If no correction is published within that period, the original value will stand, and revisions published after that period will not be considered. The resolution source for this market is PredictionMarketOdds.com, specifically the hourly odds values for the options in the "2028 Democratic Nomination" listing at https://predictionmarketodds.com/dem-nomination-2028.html and on each option's detail page, reached by clicking the option's name in the listing. Prices shown on any individual prediction market will not be considered.Top Democratic contenders remain closely matched in early 2028 nomination markets because no major candidate has declared and national polls show shifting support among Harris, Newsom, Ocasio-Cortez, and Ossoff without a clear consensus leader. Trader pricing for the October 31 odds leader reflects this uncertainty, with several names clustered near 45-50% as recent surveys and prediction platforms continue to fluctuate. Midterm election outcomes in November, potential entry announcements, and any sustained polling gains by one contender could quickly widen gaps, while continued fragmentation among governors, senators, and House members keeps probabilities compressed.

This market will resolve according to the option with the highest hourly odds value in the "2028 Democratic Nomination" listing on PredictionMarketOdds.com for the "Time Window (ET)" ending at 12:00 PM ET on October 31, 2026. If that option is not a listed outcome of this market, this market will resolve to "Other".

An hourly odds value is the value in the "Odds of Happening" column that PredictionMarketOdds.com publishes for an option for a one-hour "Time Window (ET)", as shown on the listing page and in the "Odds History" graph on that option's detail page. Hourly odds values are compared at the precision published by PredictionMarketOdds.com (one tenth of a percent).

If PredictionMarketOdds.com publishes "NO_PRINT" for an option for the specified window, that option's most recent published hourly odds value before the specified window will be used. If PredictionMarketOdds.com has not published anything for the specified window for an option (neither an hourly odds value nor "NO_PRINT"), this market will remain open until a value or "NO_PRINT" for that window is published, and may remain open until November 7, 2026, 11:59 PM ET for that purpose. If nothing has been published for the specified window by that time, that option's most recent published hourly odds value before the specified window will be used. An option with no hourly odds value published in that period will not be considered.

If two or more options are tied for the highest value, the tie will be broken in favor of the tied option with the higher value in the most recent earlier window in which their values differed. If the tie persists, this market will resolve in favor of the tied option whose listed name comes first alphabetically.

If the underlying market is officially decided before the listed end date, this market will resolve in favor of the outcome of the underlying market if it is a listed outcome, and otherwise to "Other".

If a published hourly odds value is clearly erroneous as a result of a technical or operational error, this market may remain open for up to an additional 48 hours after that value is first published to allow for a correction. A corrected value will be used in place of the original. If no correction is published within that period, the original value will stand, and revisions published after that period will not be considered.

The resolution source for this market is PredictionMarketOdds.com, specifically the hourly odds values for the options in the "2028 Democratic Nomination" listing at https://predictionmarketodds.com/dem-nomination-2028.html and on each option's detail page, reached by clicking the option's name in the listing. Prices shown on any individual prediction market will not be considered.This market will resolve according to the option with the highest hourly odds value in the "2028 Democratic Nomination" listing on PredictionMarketOdds.com for the "Time Window (ET)" ending at 12:00 PM ET on October 31, 2026. If that option is not a listed outcome of this market, this market will resolve to "Other". An hourly odds value is the value in the "Odds of Happening" column that PredictionMarketOdds.com publishes for an option for a one-hour "Time Window (ET)", as shown on the listing page and in the "Odds History" graph on that option's detail page. Hourly odds values are compared at the precision published by PredictionMarketOdds.com (one tenth of a percent). If PredictionMarketOdds.com publishes "NO_PRINT" for an option for the specified window, that option's most recent published hourly odds value before the specified window will be used. If PredictionMarketOdds.com has not published anything for the specified window for an option (neither an hourly odds value nor "NO_PRINT"), this market will remain open until a value or "NO_PRINT" for that window is published, and may remain open until November 7, 2026, 11:59 PM ET for that purpose. If nothing has been published for the specified window by that time, that option's most recent published hourly odds value before the specified window will be used. An option with no hourly odds value published in that period will not be considered. If two or more options are tied for the highest value, the tie will be broken in favor of the tied option with the higher value in the most recent earlier window in which their values differed. If the tie persists, this market will resolve in favor of the tied option whose listed name comes first alphabetically. If the underlying market is officially decided before the listed end date, this market will resolve in favor of the outcome of the underlying market if it is a listed outcome, and otherwise to "Other". If a published hourly odds value is clearly erroneous as a result of a technical or operational error, this market may remain open for up to an additional 48 hours after that value is first published to allow for a correction. A corrected value will be used in place of the original. If no correction is published within that period, the original value will stand, and revisions published after that period will not be considered. The resolution source for this market is PredictionMarketOdds.com, specifically the hourly odds values for the options in the "2028 Democratic Nomination" listing at https://predictionmarketodds.com/dem-nomination-2028.html and on each option's detail page, reached by clicking the option's name in the listing. Prices shown on any individual prediction market will not be considered.
Volume
$3,529
End Date
Oct 31, 2026
Market Opened
Sep 22, 2026, 6:44 PM ET

Resolver

0x69c47de9d...
This market will resolve according to the option with the highest hourly odds value in the "2028 Democratic Nomination" listing on PredictionMarketOdds.com for the "Time Window (ET)" ending at 12:00 PM ET on October 31, 2026. If that option is not a listed outcome of this market, this market will resolve to "Other". An hourly odds value is the value in the "Odds of Happening" column that PredictionMarketOdds.com publishes for an option for a one-hour "Time Window (ET)", as shown on the listing page and in the "Odds History" graph on that option's detail page. Hourly odds values are compared at the precision published by PredictionMarketOdds.com (one tenth of a percent). If PredictionMarketOdds.com publishes "NO_PRINT" for an option for the specified window, that option's most recent published hourly odds value before the specified window will be used. If PredictionMarketOdds.com has not published anything for the specified window for an option (neither an hourly odds value nor "NO_PRINT"), this market will remain open until a value or "NO_PRINT" for that window is published, and may remain open until November 7, 2026, 11:59 PM ET for that purpose. If nothing has been published for the specified window by that time, that option's most recent published hourly odds value before the specified window will be used. An option with no hourly odds value published in that period will not be considered. If two or more options are tied for the highest value, the tie will be broken in favor of the tied option with the higher value in the most recent earlier window in which their values differed. If the tie persists, this market will resolve in favor of the tied option whose listed name comes first alphabetically. If the underlying market is officially decided before the listed end date, this market will resolve in favor of the outcome of the underlying market if it is a listed outcome, and otherwise to "Other". If a published hourly odds value is clearly erroneous as a result of a technical or operational error, this market may remain open for up to an additional 48 hours after that value is first published to allow for a correction. A corrected value will be used in place of the original. If no correction is published within that period, the original value will stand, and revisions published after that period will not be considered. The resolution source for this market is PredictionMarketOdds.com, specifically the hourly odds values for the options in the "2028 Democratic Nomination" listing at https://predictionmarketodds.com/dem-nomination-2028.html and on each option's detail page, reached by clicking the option's name in the listing. Prices shown on any individual prediction market will not be considered.Top Democratic contenders remain closely matched in early 2028 nomination markets because no major candidate has declared and national polls show shifting support among Harris, Newsom, Ocasio-Cortez, and Ossoff without a clear consensus leader. Trader pricing for the October 31 odds leader reflects this uncertainty, with several names clustered near 45-50% as recent surveys and prediction platforms continue to fluctuate. Midterm election outcomes in November, potential entry announcements, and any sustained polling gains by one contender could quickly widen gaps, while continued fragmentation among governors, senators, and House members keeps probabilities compressed.

This market will resolve according to the option with the highest hourly odds value in the "2028 Democratic Nomination" listing on PredictionMarketOdds.com for the "Time Window (ET)" ending at 12:00 PM ET on October 31, 2026. If that option is not a listed outcome of this market, this market will resolve to "Other".

An hourly odds value is the value in the "Odds of Happening" column that PredictionMarketOdds.com publishes for an option for a one-hour "Time Window (ET)", as shown on the listing page and in the "Odds History" graph on that option's detail page. Hourly odds values are compared at the precision published by PredictionMarketOdds.com (one tenth of a percent).

If PredictionMarketOdds.com publishes "NO_PRINT" for an option for the specified window, that option's most recent published hourly odds value before the specified window will be used. If PredictionMarketOdds.com has not published anything for the specified window for an option (neither an hourly odds value nor "NO_PRINT"), this market will remain open until a value or "NO_PRINT" for that window is published, and may remain open until November 7, 2026, 11:59 PM ET for that purpose. If nothing has been published for the specified window by that time, that option's most recent published hourly odds value before the specified window will be used. An option with no hourly odds value published in that period will not be considered.

If two or more options are tied for the highest value, the tie will be broken in favor of the tied option with the higher value in the most recent earlier window in which their values differed. If the tie persists, this market will resolve in favor of the tied option whose listed name comes first alphabetically.

If the underlying market is officially decided before the listed end date, this market will resolve in favor of the outcome of the underlying market if it is a listed outcome, and otherwise to "Other".

If a published hourly odds value is clearly erroneous as a result of a technical or operational error, this market may remain open for up to an additional 48 hours after that value is first published to allow for a correction. A corrected value will be used in place of the original. If no correction is published within that period, the original value will stand, and revisions published after that period will not be considered.

The resolution source for this market is PredictionMarketOdds.com, specifically the hourly odds values for the options in the "2028 Democratic Nomination" listing at https://predictionmarketodds.com/dem-nomination-2028.html and on each option's detail page, reached by clicking the option's name in the listing. Prices shown on any individual prediction market will not be considered.This market will resolve according to the option with the highest hourly odds value in the "2028 Democratic Nomination" listing on PredictionMarketOdds.com for the "Time Window (ET)" ending at 12:00 PM ET on October 31, 2026. If that option is not a listed outcome of this market, this market will resolve to "Other". An hourly odds value is the value in the "Odds of Happening" column that PredictionMarketOdds.com publishes for an option for a one-hour "Time Window (ET)", as shown on the listing page and in the "Odds History" graph on that option's detail page. Hourly odds values are compared at the precision published by PredictionMarketOdds.com (one tenth of a percent). If PredictionMarketOdds.com publishes "NO_PRINT" for an option for the specified window, that option's most recent published hourly odds value before the specified window will be used. If PredictionMarketOdds.com has not published anything for the specified window for an option (neither an hourly odds value nor "NO_PRINT"), this market will remain open until a value or "NO_PRINT" for that window is published, and may remain open until November 7, 2026, 11:59 PM ET for that purpose. If nothing has been published for the specified window by that time, that option's most recent published hourly odds value before the specified window will be used. An option with no hourly odds value published in that period will not be considered. If two or more options are tied for the highest value, the tie will be broken in favor of the tied option with the higher value in the most recent earlier window in which their values differed. If the tie persists, this market will resolve in favor of the tied option whose listed name comes first alphabetically. If the underlying market is officially decided before the listed end date, this market will resolve in favor of the outcome of the underlying market if it is a listed outcome, and otherwise to "Other". If a published hourly odds value is clearly erroneous as a result of a technical or operational error, this market may remain open for up to an additional 48 hours after that value is first published to allow for a correction. A corrected value will be used in place of the original. If no correction is published within that period, the original value will stand, and revisions published after that period will not be considered. The resolution source for this market is PredictionMarketOdds.com, specifically the hourly odds values for the options in the "2028 Democratic Nomination" listing at https://predictionmarketodds.com/dem-nomination-2028.html and on each option's detail page, reached by clicking the option's name in the listing. Prices shown on any individual prediction market will not be considered.
Volume
$3,529
End Date
Oct 31, 2026
Market Opened
Sep 22, 2026, 6:44 PM ET

Resolver

0x69c47de9d...

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Frequently Asked Questions

"Democratic nomination odds leader on October 31?" is a prediction market on Polymarket with 5 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Jon Ossoff" at 62%, followed by "Alexandria Ocasio-Cortez" at 42%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 62¢ implies that the market collectively assigns a 62% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Democratic nomination odds leader on October 31?" is a newly created market on Polymarket, launched on Sep 22, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Democratic nomination odds leader on October 31?," browse the 5 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Democratic nomination odds leader on October 31?" is "Jon Ossoff" at 62%, meaning the market assigns a 62% chance to that outcome. The next closest outcome is "Alexandria Ocasio-Cortez" at 42%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Democratic nomination odds leader on October 31?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.