Grading of Venezuela invasion contracts illustrates the biggest problem with certain prediction markets
- Jan 9, 2026
Prediction markets dressed up as sportsbooks are breaking some of the Bookmaking 101 rules.
Read More . . .HARTLEY HENDERSON has been involved with the online gambling world for more than twenty years. His insights helped Intertops become the first sportsbook online to list odds for reality TV betting when they opened lines for Survivor in 2000. Hartley worked extensively for WWTS in the heyday of that storied sportsbook in the mid-2000s and finally landed at Major Wager writing his popular "Frontline" column for five years. His contacts throughout the online gaming industry are unparalleled and his column often offers exclusive interviews and opinions from gambling leaders around the world. Hartley was voted our top writer in 2017, 2019 and again in 2020. His weekly insights are not to be missed here at OSGA.
Prediction markets dressed up as sportsbooks are breaking some of the Bookmaking 101 rules.
Read More . . .
Hartley examines the top 5 stories that affected gambling in the United States, from betting scandals in pro sports and a change in taxes to the rise of predictions markets, 2025 was again a year for big changes in gambling around the globe.
Read More . . .
In the second of two parts, Hartley examines the top 5 stories that affected gambling in the United States, from betting scandals in pro sports and a change in taxes to the rise of predictions markets, 2025 was again a year for big changes in gambling in North America.
Read More . . .
Hartley Henderson lists his top 10 gambling stories of 2025 for North America. In the first of two parts, Hartley examines the biggest stories that affected gambling in the United States, from the explosion of sportsbetting to the demise of sweepstakes casinos.
Read More . . .
Sportsbooks are getting into the prediction market game to compete with traders and to enter previously closed markets.
Read More . . .
A recent court ruling in Canada look to energize both DFS and online poker by allowing gamblers worldwide to play.
Read More . . .
The NBA is arguably the easiest league for manipulation, yet it was the first league to embrace sports betting.
Read More . . .
Hartley Henderson unveils his betting strategies and picks for Saturday's Breeders' Cup racing.
Read More . . .
Hartley Henderson unveils his betting strategies and picks for Friday's Breeders' Cup racing.
Read More . . .
Regulatory upheaval and outright banning of online gambling among the top recent betting news around the world..
Read More . . .
A Massachusetts Gaming Commission report shows that regulated sportsbooks are indeed limiting winners and getting losers to gamble more.
Read More . . .
Pointsbet's Canada sale proves the difficulties that smaller sportsbooks have it in North America are real.
Read More . . .