Oregon Senate Election: Voter Turnout
Oregon voters will cast ballots in the 2026 U.S. Senate election on November 3, 2026, with the state’s all vote-by-mail system shaping how and when votes are cast. Total turnout will depend on the competitiveness of the race, mail-ballot return rates, and broader midterm engagement across the state.
Why Markets Are Watching
Turnout levels shape the legitimacy and representativeness of the outcome, influencing how campaigns and parties interpret the result heading into 2028. Oregon’s vote-by-mail model is often cited as a turnout driver, making this race a useful data point for national debates about election administration and voter participation.
How Prediction Markets Frame the Turnout Question
These contracts isolate a single measurable threshold: whether total ballots cast clear specific numeric marks, ranging from 1.5 million to 2.3 million votes. That turns a broad civic question into a narrow, quantifiable proposition separate from who wins the seat. Traders are effectively weighing historical turnout patterns, mail-ballot return trends, and midterm enthusiasm against each defined benchmark.
Related terms
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United States Senate -
Voter turnout -
United States midterm election -
Oregon -
2022 United States Senate elections
Total Volume
$17.4k
Kalshi $5.4k · Polymarket $12k
Leading Market
Above 1.7M
Polymarket 98%
Above 1.7M Volume
$242.10
Polymarket $242.10
Above 1.7M 24h Change
-8.00%
Polymarket -8.00%
Calculate Your Potential Return
- Kalshi(opens in a new tab) 7.0% fee
- Polymarket(opens in a new tab) 5.0% fee
| Market | Kalshi Yes | Kalshi Fee | Kalshi Payout | Polymarket Yes | Polymarket Fee | Polymarket Payout |
|---|---|---|---|---|---|---|
| Above 1.7M | — | — | — | 98.0¢ | 5% | , trade Above 1.7M on Polymarket (opens in a new tab) |
| Above 1.80M | 93.0¢ | 7.0% | , trade Above 1.80M on Kalshi (opens in a new tab) | — | — | — |
| Above 1.60M | 99.0¢ | 7.0% | , trade Above 1.60M on Kalshi (opens in a new tab) | — | — | — |
| Above 1.9M | — | — | — | 90.0¢ | 5% | , trade Above 1.9M on Polymarket (opens in a new tab) |
| Above 1.6M | — | — | — | 98.0¢ | 5% | , trade Above 1.6M on Polymarket (opens in a new tab) |
* Estimates if candidate wins. Actual returns may vary.
All Markets
| Market | Total Volume | Kalshi(opens in a new tab) | Polymarket(opens in a new tab) |
|---|---|---|---|
| Above 1.7M | $242.10 | No market | |
| Above 1.80M | $772.81 | No market | |
| Above 1.60M | $195.00 | No market | |
| Above 1.9M | $1,043.42 | No market | |
| Above 1.6M | $1,215.33 | No market |