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icon for Massachusetts Senate Election: Turnout

Massachusetts Senate Election: Turnout

icon for Massachusetts Senate Election: Turnout

Massachusetts Senate Election: Turnout

2.8M-2.95M 36%

2.65M-2.8M 31%

2.5M-2.65M 19%

2.95M-3.1M 10%

Polymarket
NEW

2.8M-2.95M 36%

2.65M-2.8M 31%

2.5M-2.65M 19%

2.95M-3.1M 10%

Polymarket
NEW

<2.2M

$71 Vol.

7%

2.2M-2.35M

$71 Vol.

6%

2.35M-2.5M

$71 Vol.

9%

2.5M-2.65M

$90 Vol.

19%

2.65M-2.8M

$669 Vol.

31%

2.8M-2.95M

$692 Vol.

36%

2.95M-3.1M

$63 Vol.

10%

3.1M+

$79 Vol.

8%

This market will resolve according to the total number of valid votes cast in the 2026 midterm election for Senator from Massachusetts. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the results of the specified election are not definitively known by March 31, 2027, 11:59 PM ET, this market will resolve to the lowest range bracket. All votes certified for candidates or non-candidate options in the specified election are included. Invalidated or blank votes are not included. In ranked-choice or preferential systems, the first-round vote total will be used. The primary resolution source for this market will be the official results of the 2026 midterm election for Senator from Massachusetts, as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.The closely matched Polymarket bins around 2.5M–2.95M votes reflect trader assessments of a low-competition general election in a solidly Democratic state, where incumbent Ed Markey holds a wide lead over Republican John Deaton. A decisive September 1 Democratic primary victory for Markey over Seth Moulton generated limited enthusiasm, consistent with Secretary of State William Galvin’s expectations of standard rather than elevated participation. Typical midterm turnout drop-off, combined with monitoring of early voting volumes and mail ballot return rates, continues to anchor probabilities near historical patterns for similar off-year Senate contests without introducing major catalysts that would widen separation among the leading ranges.

This market will resolve according to the total number of valid votes cast in the 2026 midterm election for Senator from Massachusetts.

If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket.

If the results of the specified election are not definitively known by March 31, 2027, 11:59 PM ET, this market will resolve to the lowest range bracket.

All votes certified for candidates or non-candidate options in the specified election are included. Invalidated or blank votes are not included. In ranked-choice or preferential systems, the first-round vote total will be used.

The primary resolution source for this market will be the official results of the 2026 midterm election for Senator from Massachusetts, as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
This market will resolve according to the total number of valid votes cast in the 2026 midterm election for Senator from Massachusetts. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the results of the specified election are not definitively known by March 31, 2027, 11:59 PM ET, this market will resolve to the lowest range bracket. All votes certified for candidates or non-candidate options in the specified election are included. Invalidated or blank votes are not included. In ranked-choice or preferential systems, the first-round vote total will be used. The primary resolution source for this market will be the official results of the 2026 midterm election for Senator from Massachusetts, as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
Volume
$1,806
End Date
Nov 3, 2026
Market Opened
Aug 18, 2026, 10:33 AM ET
This market will resolve according to the total number of valid votes cast in the 2026 midterm election for Senator from Massachusetts. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the results of the specified election are not definitively known by March 31, 2027, 11:59 PM ET, this market will resolve to the lowest range bracket. All votes certified for candidates or non-candidate options in the specified election are included. Invalidated or blank votes are not included. In ranked-choice or preferential systems, the first-round vote total will be used. The primary resolution source for this market will be the official results of the 2026 midterm election for Senator from Massachusetts, as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.The closely matched Polymarket bins around 2.5M–2.95M votes reflect trader assessments of a low-competition general election in a solidly Democratic state, where incumbent Ed Markey holds a wide lead over Republican John Deaton. A decisive September 1 Democratic primary victory for Markey over Seth Moulton generated limited enthusiasm, consistent with Secretary of State William Galvin’s expectations of standard rather than elevated participation. Typical midterm turnout drop-off, combined with monitoring of early voting volumes and mail ballot return rates, continues to anchor probabilities near historical patterns for similar off-year Senate contests without introducing major catalysts that would widen separation among the leading ranges.

This market will resolve according to the total number of valid votes cast in the 2026 midterm election for Senator from Massachusetts.

If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket.

If the results of the specified election are not definitively known by March 31, 2027, 11:59 PM ET, this market will resolve to the lowest range bracket.

All votes certified for candidates or non-candidate options in the specified election are included. Invalidated or blank votes are not included. In ranked-choice or preferential systems, the first-round vote total will be used.

The primary resolution source for this market will be the official results of the 2026 midterm election for Senator from Massachusetts, as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
This market will resolve according to the total number of valid votes cast in the 2026 midterm election for Senator from Massachusetts. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the results of the specified election are not definitively known by March 31, 2027, 11:59 PM ET, this market will resolve to the lowest range bracket. All votes certified for candidates or non-candidate options in the specified election are included. Invalidated or blank votes are not included. In ranked-choice or preferential systems, the first-round vote total will be used. The primary resolution source for this market will be the official results of the 2026 midterm election for Senator from Massachusetts, as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
Volume
$1,806
End Date
Nov 3, 2026
Market Opened
Aug 18, 2026, 10:33 AM ET

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Frequently Asked Questions

"Massachusetts Senate Election: Turnout" is a prediction market on Polymarket with 8 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "2.8M-2.95M" at 36%, followed by "2.65M-2.8M" at 31%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 36¢ implies that the market collectively assigns a 36% 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.

"Massachusetts Senate Election: Turnout" is a newly created market on Polymarket, launched on Aug 18, 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 "Massachusetts Senate Election: Turnout," browse the 8 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 "Massachusetts Senate Election: Turnout" is "2.8M-2.95M" at 36%, meaning the market assigns a 36% chance to that outcome. The next closest outcome is "2.65M-2.8M" at 31%. 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 "Massachusetts Senate Election: Turnout" 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.