Here is the secret behind SwissToney, the #1 trader on Polymarket with +$21M PNL they use SportsRadar SportsRadar is the company setting the odds for most bookmakers Do you think most sportsbooks have dedicated teams of researchers setting the odds for every possible event ? No, now days they outsource that to SportsRadar Sportsbook receive live odds feed from SportRadar's API, apply their spread, and count on these odds being better than the judgement of the crowd to not lose against their customers. SwissTony is doing the same thing on Polymarket. They are receiving live odds feed from SportsRadar and arbitrage it with the Polymarket odds. Just look at their stats : PNL : $21M # of trades : 146k position value : $161k - High PNL show that they aren't a market maker, since LP rewards are not counted in there. - High number of trades tell us this can't be a manual sharp trader. - Low position value tell us it's likely an arbitrage strategy where capital is limited by size of opportunities. They are simply leveraging privileged access to a professional sports intelligence service and running it against the @polymarket userbase Interestingly SportsRadar has it's headquarters in St Gallen, Switzerland (🇨🇭), so i wouldn't be surprised if they were directly related to the SwissTony (🇨🇭) team. Maybe that's how they got access to that service despite it being usually reserved for bookmakers