Chat With Traders · Ian Cox and Tessa Dao

Sports Betting and Prediction Markets - Through a Trading Lens

March 26, 2026·1 hr 17 min·6 clips
Hosts Tessa Dow and Ian Cox reveal this is their last episode hosting Chat with Traders.
Sports betting is treated like trading. The host keeps pulling the conversation back to market structure: what happens when a bettor is sharp enough that normal books start closing doors? The guest says the house model has obvious friction, so he looks for places with open access and enough liquidity to keep putting on trades. PolyMarket, BetOpenly, and Pinnacle come up as working examples. Pinnacle gets extra attention because it takes sharp action and lets that flow move prices, which makes its lines worth watching. The counterparty changes too. Instead of betting straight into a house, the guest talks through peer to peer markets where another person or entity can take the other side. Anonymity is less glamour and more plumbing. Crypto wallets and open exchanges can reduce the account level pressure sharp bettors run into at books. Liquidity is what keeps it all useful. If the price stinks, a trader can pass, and someone else can bring fresh money into the market. Price becomes the shared language. The host asks how a yes contract priced at 30 cents gets there, treating odds like a quote instead of sportsbook copy. The useful bit is execution: good prices, liquid venues, and the ability to keep trading beat grand predictions about who wins. By the end, the guest's path from stock trading to arbitrage to sportsbook trading feels pretty natural. To him, nearly everything has a price if the market is open enough.

As heard by us

A clear look at betting as pricing, not just picking winners.

This episode treats sports betting less as entertainment and more as a question of market structure. It follows the shift from betting against the house to trading in peer-to-peer markets, and it gives a clear read on why venues like Pinnacle, Polymarket, and Bed Openly matter…

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Why you'd press play

If you think betting is really about price, this is your kind of episode.

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