Each row counts as one event, with its price brackets and other outcomes folded inside. Recurring Polymarket series show one rolling row for the current round. Category totals count every event on the board for the selected venue; the list shows 100 at a time.
A prediction market is a yes/no contract that pays $1 if an event happens. Its price is the crowd’s probability: a Yes trading at 72¢ means traders give it a 72% chance. We read the public market lists of Polymarket, Limitless, Myriad and CRSH every minute, merge them, and rank them by what was actually traded.
Volume is in each venue’s dollar stablecoin (USDC, USDT, USD1). “Chance” is the last traded price of the leading outcome; for threshold ladders (“BTC above $X”) it is the strike where the market sits closest to 50/50. CRSH markets are rapid yes/no rounds on live streams — their “chance” is each side’s share of the betting pool and a round lasts minutes, so they carry no 7-day trend. Limitless and CRSH publish no 24-hour volume figure, so their “traded 24 h” is our own measurement and can trail reality for markets we started tracking recently.
This is information, not advice. Availability of these exchanges depends on where you live.