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Strip away the language of contracts, order books and event trading and Bernard Marantelli has a blunt description of what is happening inside US sports prediction markets. “Kalshi is a sportsbook that’s just not allowed to have an in-house risk team,” says the founder of White Swan Data, one of the specialist firms now making markets on prediction exchanges.
The difference is all about the risk function. A sportsbook employs traders to price bets and manage its exposure. An exchange provides an API through which firms compete to quote prices and supply liquidity.
“Here’s an API. Bernard and 88 other people can market-make all these request-for-quotes (RFQs),” Marantelli says. “Some people might come in and just do esports because they’re esports experts. Others do everything. Some focus on same-game parlays. But it’s a sportsbook.”
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Player propositions were included in 65% of Bet Builders, up from 25% in 2022. Meanwhile, player shots on target became Kambi’s second-largest pre-match betting offer by turnover, while other popular selections included a player to score or assist.
“Customers seek personalised experiences, extensive player proposition bets and the ability to build highly customised wagers in real time,” Lamb says. “Meeting these modern expectations through manual trading is no longer realistic at scale.”
AI also helped Kambi reduce the delay between a customer selecting an in-play bet and being able to place it. Its dynamic live delay technology enables it to set bespoke live delay on an individual bet level, optimising the UX and alleviating friction. Across the Premier League and World Cup, Kambi reduced live betting delay by more than 40% between August 2025 and July 2026.
About Petro Fortuna
K Ssam Bap—a Korean restaurant in the mini-mall at 3909 W. Sahara Ave.– was reportedly closed by the Southern Nevada Health District (SNHD) for the second time since it opened just a year ago.
According to SNHD records, a routine inspection on Thursday, Sept. 10, cited the establishment for 16 health violations resulting in 58 demerits. Infractions included improper food cooling, un-sanitized food contact surfaces, improper storage temperatures, and adulterated or spoiled food items.
The restaurant was also closed after a routine inspection on June 23, 2026 uncovered 17 health violations resulting in 53 demerits.