Type a team, race or topic. Every related market on Kalshi and Polymarket, paired side by side.
Price is the bid/ask midpoint when the spread is 10 points or less, otherwise the last trade. A market with no bid and no trades is "thin" and hidden unless you ask for it. Gap = Kalshi minus Polymarket, in points, shown only when both sides have a real price.
Kalshi volume and open interest are in contracts (each pays $1); Polymarket volume and liquidity are in US dollars. 1D is the change since yesterday. Auto-refresh runs every 15 seconds while a game is live, otherwise every minute, and pauses when this tab is hidden.
Data from the public Kalshi and Polymarket APIs. Not affiliated with either. Not advice.