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Before Patrick Mahomes laced up his cleats for his 2026-2027 NFL regular-season debut, US prediction markets had already cleared a historic benchmark for the opening week of the season.
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.
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“Threatening the safety of an athlete or their family members over a sports bet crosses a bright ethical and criminal line, and it is entirely unacceptable,” the leagues wrote in the statement.
The equinox, a relatively new phenomenon, occurs when the NFL, NBA, NHL and MLB all hold games on the same day. A fifth league, the MLS, also signed Tuesday’s letter. Although the equinox will transpire this year on 26 October, the MLS will not be in action.
More than a year after then-Houston Astros pitcher Lance McCullers faced menacing threats from an exasperated bettor, questions remain about whether the proposed bans will serve as a meaningful deterrent to agitated sportsbook customers. An investigation later determined that the bettor resided overseas.
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The Raiders’ revamped offensive line didn’t allow a single sack against Miami while opening running lanes for Jeanty. However, they face a significantly tougher test Sunday against Khalil Mack, Tuli Tuipulotu, and the Chargers’ pass rush.
On defense, Las Vegas generated five sacks in Week 1, led by Maxx Crosby and Kwity Paye—a promising matchup against a Chargers unit that struggled to protect Justin Herbert during a 26-14 loss to the Arizona Cardinals.
The Las Vegas Athletics announced a multi-year partnership with Circa Resort & Casino and Circa Sports on Thursday. The MLB franchise is set to move from Oakland ahead of the 2028 season to a new $2 billion stadium on the Las Vegas Strip.