Skip to main content

To trade in the US, go to polymarket.us

icon for Colorado Senate Election Winner
Elections·Midterms

Colorado Senate Election Winner

icon for Colorado Senate Election Winner
Elections·Midterms

Colorado Senate Election Winner

Polymarket

$48,414 Vol.

Polymarket

$48,414 Vol.

icon for John Hickenlooper (D)

John Hickenlooper (D)

$12,746 Vol.

96%

icon for Mark Baisley (R)

Mark Baisley (R)

$35,668 Vol.

3%

This market will resolve according to the winner of the 2026 midterm Colorado U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.Incumbent Democrat John Hickenlooper enters the November 3, 2026, general election with strong trader consensus after defeating progressive state Sen. Julie Gonzales in the June 30 Democratic primary. Hickenlooper’s established statewide profile as a former governor and mayor, combined with Colorado’s consistent Democratic lean in recent federal contests, underpins his position. Republican nominee Mark Baisley, a state senator who shifted from a gubernatorial bid, advanced unopposed but faces structural headwinds including limited name recognition and the absence of a Republican statewide victory since 2016. Nonpartisan ratings classify the race as solid or safe Democratic. Late developments such as national political shifts, candidate health events, or unusually high turnout among Republican-leaning voters could still influence the outcome before Election Day.

This market will resolve according to the winner of the 2026 midterm Colorado U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.This market will resolve according to the winner of the 2026 midterm Colorado U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Volume
$48,414
End Date
Nov 3, 2026
Market Opened
Oct 13, 2025, 5:35 PM ET

Resolver

0x2F5e3684c...
This market will resolve according to the winner of the 2026 midterm Colorado U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.Incumbent Democrat John Hickenlooper enters the November 3, 2026, general election with strong trader consensus after defeating progressive state Sen. Julie Gonzales in the June 30 Democratic primary. Hickenlooper’s established statewide profile as a former governor and mayor, combined with Colorado’s consistent Democratic lean in recent federal contests, underpins his position. Republican nominee Mark Baisley, a state senator who shifted from a gubernatorial bid, advanced unopposed but faces structural headwinds including limited name recognition and the absence of a Republican statewide victory since 2016. Nonpartisan ratings classify the race as solid or safe Democratic. Late developments such as national political shifts, candidate health events, or unusually high turnout among Republican-leaning voters could still influence the outcome before Election Day.

This market will resolve according to the winner of the 2026 midterm Colorado U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.This market will resolve according to the winner of the 2026 midterm Colorado U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Volume
$48,414
End Date
Nov 3, 2026
Market Opened
Oct 13, 2025, 5:35 PM ET

Resolver

0x2F5e3684c...

Related

icon for Will the Republicans win the Wyoming Senate race in 2026?

Will the Republicans win the Wyoming Senate race in 2026?

96%
icon for Will the Democrats win the Minnesota Senate race in 2026?

Will the Democrats win the Minnesota Senate race in 2026?

92%
icon for Will the Republicans win the Iowa Senate race in 2026?

Will the Republicans win the Iowa Senate race in 2026?

66%

Beware of external links.

Frequently Asked Questions

"Colorado Senate Election Winner" is a prediction market on Polymarket with 2 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "John Hickenlooper (D)" at 96%, followed by "Mark Baisley (R)" at 3%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 96¢ implies that the market collectively assigns a 96% 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.

As of today, "Colorado Senate Election Winner" has generated $48.4K in total trading volume since the market launched on Oct 13, 2025. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Colorado Senate Election Winner," browse the 2 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 "Colorado Senate Election Winner" is "John Hickenlooper (D)" at 96%, meaning the market assigns a 96% chance to that outcome. The next closest outcome is "Mark Baisley (R)" at 3%. 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 "Colorado Senate Election Winner" 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.