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About Diamond Doggies
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.
What is Diamond Doggies?
On the surface, Week 1 appeared exceptionally bettor-friendly, as Casino.org reported.
According to LSR, NFL teams combined for 791 points—tying 2012 for the highest opening-week total ever—while setting Week 1 records for total touchdowns (93), offensive touchdowns (90), and rushing touchdowns (37). Favorites went 12-4 straight up, while the Over hit in nine of 16 games (9-6-1).
At Caesars Sportsbook, seven of eight early afternoon favorites won outright, and six games went Over the total—many hitting the mark by halftime.
What is Diamond Doggies?
With no jackpot win materializing, the game’s top prize has continued to grow, reaching $332 million ahead of the Wednesday drawing. A hypothetical winner would be able to either claim the annuity option for the full sum or the one-time lump sum option of $141.7 million.
The $1 million win in the UK comes shortly after a lucky player in New York won a similar prize after matching the five white numbers for the Saturday, September 19, drawing. The same drawing also saw 30 players win tier-three prizes. Of these, 23 won $50,000 each, while the remaining 7 won $100,000 each thanks to Power Play.
A week before that, Powerball awarded not one, but two Match 5 prizes. One of these incredible payouts was a $1 million win in Georgia, while the other one was a $2 million windfall in Ohio.