The blockchain prediction market's competitive gaming category surged 33% month-over-month, driven by a data partnership and growing trader appetite for match-level markets. Polymarket’s eSports trading volume hit approximately $790 million in July, setting a new record for the category and representing a 33% jump from June. That data infrastructure got a major upgrade in late June when Polymarket announced a partnership with GRID, a company that provides official eSports data and technology. The timing of the GRID partnership, announced around June 23, lines up neatly with July’s volume explosion. The competitive landscape and what comes nextThe GRID partnership gives Polymarket something most competitors lack: official data sourced directly from game servers.