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What is Plenty Ofortune?
Two operators alone – Kalshi and Polymarket – topped the combined $1 billion mark in NFL trading activity over the first six days of Week 1, according to numerous measures this week. During the period, Kalshi recorded NFL volume of $983.4 million, according to DeFi Rate, earning the pole position by a large margin. Mahomes and the Kansas City Chiefs thrashed the Denver Broncos 31-10 on Monday Night Football, capping the largest week for prediction markets ever.
Even before the primetime matchup in Kansas City, it became abundantly clear that the industry would shatter previous marks for weekly activity. The AFC West showdown bolstered the already robust totals. Overall, volume for the week hit a record $15.9 billion, according to Bank of America, up 16% from a week earlier.
The pure-play prediction market-operators, Polymarket and Kalshi, emerged from Week 1 as the clear winners. On one hand, Kalshi’s market share lead narrowed over its competitors, falling to 82% for the week ended 13 September, down from 86% a week earlier.
What is Plenty Ofortune?
Clubs fear the measure will jeopardise revenue from betting company sponsorships. Corinthians (Esportes da Sorte), Palmeiras (Sportingbet), and São Paulo (Superbet) alone hold contracts worth BRL350 million annually with betting firms.
One concern is the measure might force clubs to host matches outside the city to maintain their advertising agreements.
Stakeholders have yet to determine their response to the bills, with educational campaigns and collective actions on the agenda. Coordination with political leaders in the city of São Paulo is also under way.
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The book enjoyed a steady diet of low-scoring primetime games in Week 1, but Week 2 began with an all-you-can-eat touchdown buffet for bettors on Thursday night,” Feazel said. “Seven of the eight most popular touchdown scorers cashed, and the only player who failed to score, DJ Moore, was refunded under Injury Protection.”
The biggest game for bettors at Caesars Sportsbook was Lions-Bills, while the most favorable for the house was Vikings-Bears—a 9-3 defensive battle won by Minnesota.
“Sunday early games brought a sharp reversal,” Feazel said. “Underdogs and defenses came out swinging, offenses went quiet, and touchdowns were much harder to locate. In Week 1, it felt like everyone with a jersey found the end zone. This Sunday, even the end zone required a reservation.”