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Hartley Henderson

HARTLEY HENDERSON has been involved with the online gambling world for nearly thirty 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 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 5 times since he began at OSGA over a decade ago, most recently 2024. His weekly insights are not to be missed here at OSGA.

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Hartley Henderson

Saturday Breeders' Cup Classic Predictions 2022
- Nov 4, 2022
Selections for the Breeders' Cup Classic at Keenland on Saturday, plus more horse racing betting tips from Hartley Henderson.
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Friday Breeders' Cup Predictions 2022
- Nov 3, 2022
Insights and analysis from Hartley Henderson for the five Breeders' Cup races at Keenland on Friday.
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Not all gambling taxation is alike
- Nov 1, 2022
Taxes on gambling entities can zap profits from player losses, but in the U.S. most sports betting and casino companies are getting off easy.
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As LIV Golf wraps up for the year, many questions remain unanswered
- Oct 24, 2022
Hartley examines the first season of LIV Gofl, which concludes this weekend at Trump National Doral Golf Club.
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Gambling in Asia seems to be at a crossroads
- Oct 11, 2022
At one time Macau and Asia were printing money for casino companies, but the pandemic and new rules have soured many operators on gambling in the Far East.
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Is Wire to Wire In-Game Betting on Outcomes and Props Without a Delay Feasible?
- Sep 23, 2022
In-game betting has become huge and now Pointsbet is looking to take live bets instantly, with no delay. Can it de done?
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Chapek’s comments on ESPN and sports betting is raising many questions
- Sep 16, 2022
The CEO of Disney has indicated that the company is looking to get into sports betting but needs to do it without affecting the brand.
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Massachusetts’ final tax rates on sports betting likely frustrates New York legislators
- Sep 6, 2022
Massachusetts recently passed online sports betting law gives operators less than half the tax rate of neighboring New York.
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Jim Lawson expects to see horse racing integrated with licensed Ontario iGaming websites soon
- Aug 25, 2022
Hartley chats with the president of Woodbine about new iGaming laws in Canada and the future of betting on horse racing.
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William Hill's move obtaining an Ontario license could be a boon for 888
- Aug 16, 2022
Customers of William Hill in Ontario, Canada are being forced to close their accounts, but William Hill will be back, albeit under the 888 Holdings banner.
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Bettors are making it clear they don’t support LIV Golf
- Aug 5, 2022
The LIV Golf tour certainly makes headlines, but bettors don't appear to be interested in wagering on the tournaments.
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Should post event changes be counted for betting purposes?
- Jul 26, 2022
In the wake of the recent ruling by NASCAR, awarding a new winner after the top two racers were disqualified, Harltey examines wether bettors should lose their wagers for disqualifications after the event has finished.
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