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Polymarket narrowly leads Kalshi in open sports event count

CoinStats also lists 624 open sports events on Polymarket US on its sports prediction market board. The board prices markets on both venues side by side, with chance shown as the favourite's price on each market.

Polymarket has 9,770 open sports events, compared with 9,749 on Kalshi, according to CoinStats. The figures put the two venues close together on the sports prediction market board.

Event counts and price comparisons

CoinStats separately lists 624 open sports events on Polymarket US. That figure appears alongside the counts for Polymarket and Kalshi in the supplied summary, published Nov 7, 2026 at 9:30 AM ET.

The board displays market prices from both venues side by side, according to CoinStats. This gives readers a way to compare the displayed pricing as well as the number of open events.

The board’s “chance” measure represents the favourite’s price in each market. Readers should therefore interpret that field as a price for the favoured outcome, rather than as a separate probability estimate.

What it means for prediction markets

  • Polymarket’s open sports event count is slightly higher than Kalshi’s, but the figures alone do not establish differences in trading activity or liquidity.
  • The 624 events listed for Polymarket US are reported separately; they should not be conflated with the 9,770 figure for Polymarket.
  • Side-by-side prices support comparisons, but the supplied summary does not identify specific price gaps or establish that the venues’ event listings match.
KalshiPolymarketInfiniti MarketsInfiniti Signals

Sources & attribution

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  1. Source
    CoinStats
    Publisher
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