Total Active Markets

Count of all non-resolved markets currently tracked across Polymarket, Kalshi, and Limitless.

128,076

Total Volume

Lifetime trading volume across all platforms. Polymarket and Kalshi report volume directly; Limitless volume is cumulative USDC traded.

$5,795,135,907

24h Volume

24-hour trading volume. Polymarket and Kalshi report this directly. Limitless does not break out 24h volume separately, so it is not included.

$583,131,780

Total Open Interest

Polymarket: sum of pool liquidity. Kalshi: open interest (contracts outstanding). Limitless: uses total volume as a proxy — no separate OI metric is available.

$3,444,769,849

Polymarket$3.04BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.

Kalshi$377.27MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.

Limitless$24.18MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.

Total Active Markets

Count of all non-resolved markets currently tracked across Polymarket, Kalshi, and Limitless.

128,076

Total Volume

Lifetime trading volume across all platforms. Polymarket and Kalshi report volume directly; Limitless volume is cumulative USDC traded.

$5,795,135,907

24h Volume

24-hour trading volume. Polymarket and Kalshi report this directly. Limitless does not break out 24h volume separately, so it is not included.

$583,131,780

Total Open Interest

Polymarket: sum of pool liquidity. Kalshi: open interest (contracts outstanding). Limitless: uses total volume as a proxy — no separate OI metric is available.

$3,444,769,849

Polymarket$3.04BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.

Kalshi$377.27MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.

Limitless$24.18MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.

polymarket🏛️ politics|2 outcomes

Ohio Senate Election Winner

Updated Today

Volume:$41,212

Trade on Polymarket

All Outcomes

Leading

Democrat

$27,833 vol

50.5%

Trade

Republican

$23,691 vol

48.5%

Trade

Trade on Polymarket

Frequently Asked Questions

What are the current odds for Ohio Senate Election Winner?

As of March 18, 2026, the Polymarket odds for Ohio Senate Election Winner are: Democrat: 51%, Republican: 49%. These probabilities are derived from real-money trading and update in real time.

Where can I bet on Ohio Senate Election Winner?

Ohio Senate Election Winner is currently available on Polymarket. Check PredictMarketCap for cross-platform availability as new markets are added regularly.

How are Ohio Senate Election Winner prediction market odds calculated?

Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65¢) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.