It's high stakes for UK firms as sports betting starts to spread out in America.
From Tuesday, new rules on betting entered into impact in Delaware, a tiny east coast state about two hours from Washington.
Neighbouring New Jersey might begin accepting sports bets as early as Friday.
The changes are the very first in what could end up being a wave of legalisation after the Supreme Court last month cleared the way for states to allow sports betting wagering.
The market sees a "as soon as in a generation" chance to develop a brand-new market in sports betting-mad America, stated Dublin-based monetary analyst David Jennings, who heads leisure research study at Davy.
For UK firms, which are coming to grips with debt consolidation, increased online competition and tougher guidelines from UK regulators, the timing is particularly opportune.
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But the market says depending on the US stays a risky bet, as UK business deal with complex state-by-state guideline and competitors from entrenched local interests.
"It's something that we're actually concentrating on, but similarly we do not wish to overhype it," stated James Midmer, spokesperson at Paddy Power Betfair, which just recently acquired the US dream sports betting website FanDuel.
'Take time'
The US represented about 23% of the world's $244bn (₤ 182bn) in video gaming income last year, according to a report by Technavio, external published in January.
Firms are wanting to tap into more of that activity after last month's choice, which struck down a 1992 federal law that barred states outside of Nevada and a couple of others from authorising sports betting.
The ruling found the law was an over-reach of federal power. But the court it did not in fact legalise sports betting, leaving that concern to regional legislators.
That is expected to result in considerable variation in how firms get accredited, where sports betting wagering can happen, and which occasions are open to speculation - with big ramifications for the size of the marketplace.
Potential revenue varieties from $4.2 bn to almost $20bn each year depending on aspects like the number of states move to legalise, Oxford Economics approximated in a 2017 study for the American Gaming Association.
"There was a lot of 'this is going to be big'", stated Will Hawkley, London-based head of leisure for consultants KPMG.
Now, he said: "I think the majority of people ... are looking at this as, 'it's an opportunity however it's not going to be $20bn and it's going to be state by state and it's going to require time'."
'Remains to be seen"
Chris Grove, managing director at Eilers & Krejcik Gaming, forecasts that 32 states will legalise sports betting in some type by 2023, creating a market with about $6bn in annual profits.
But bookmakers deal with a far different landscape in America than they do in the UK, where wagering stores are a regular sight.
US laws minimal betting largely to Native American lands and Nevada's Las Vegas strip up until reasonably just recently.
In the popular imagination, sports betting has actually long been linked to a 1919 baseball World Series match-fixing scandal.
States have actually likewise been sluggish to legalise numerous kinds of online betting, in spite of a 2011 Justice Department opinion that appeared to eliminate barriers.
While sports betting is normally seen in its own category, "it clearly remains to be seen whether it gets the kind of momentum people believe it will," said Keith Miller, law professor at Drake University and co-author of a book about sports betting wagering policy.
David Carruthers is the former president of BetonSports, who was apprehended in the US in 2006 for running an offshore online sportsbook and served prison time.
Now an expert, he says UK firms need to approach the marketplace thoroughly, picking partners with care and avoiding errors that might result in regulator reaction.
"This is an opportunity for the American sports betting gambler ... I'm unsure whether it is an opportunity for service," he says. "It truly depends on the result of [state] legislation and how the company operators pursue the chance."
'It will be partnerships'
As legalisation begins, sports betting companies are lobbying to fend off high tax rates, along with demands by US sports betting leagues, which wish to collect a percentage of revenue as an "stability charge".
International companies deal with the added challenge of a powerful existing video gaming market, with casino operators, state-run lottos and Native American people that are looking for to protect their grass.
Analysts say UK companies will need to strike partnerships, offering their proficiency and technology in order to make inroads.
They point to SBTech's current statement that it is offering innovation for Kentucky Derby operator Churchill Downs as an example of the sort of offers most likely to materialise.
"It will be a win-win for everyone, however it will be partnerships and it will be driven by technology," Mr Hawkley said.
'It will simply depend'
Joe Asher, primary executive at William Hill US, is clear-eyed about the realities.
The business has actually been buying the US market because 2011, when it purchased three US firms to establish a presence in Nevada.
William Hill now employs about 450 individuals in the US and has actually announced partnerships with casinos in Iowa and New Jersey.
It works as danger supervisor for the Delaware Lottery and has invested millions along with a local developer in a New Jersey horse racing track.
Mr Asher stated William Hill has ended up being a family name in Nevada however that's not always the goal all over.
"We certainly mean to have a really significant brand presence in New Jersey," he stated. "In other states, it will just depend upon guideline and possibly who our local partner is."
"The US is going to be the biggest sports betting market worldwide," he included. "Obviously that's not going to occur on the first day."