In the US, sports wagering is restricted to just four states, Nevada, Delaware, Montana and Oregon and most betting occurs unsurprisingly in Nevada.

Betting occurs almost exclusively in casinos. Some casinos operate their own sportsbook while others use third-party operators.

William Hill U.S., a British owned parent company, bought three of the largest independent franchises in Nevada 2012 to give it control of over 50% of the state’s sportsbooks.

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Due to the USA’s restrictions on betting, unsurprisingly most betting is done online, so the rest of our list of popular sportsbooks are all offshore. There are plenty of quality sportsbooks available to US players, but the following are some of the better ones for you to choose from.

5Dimes, www.5dimes.eu, is part of the 5Dimes Group, located in Costa Rica, along with other websites such as the Asian orientated VietBet. They opened the 5Dimes sportsbook in 1998. Although it provides odds on sports all over the world, 5Dimes is clearly primarily aimed at the North American market.
Positives:
It offers freephone telephone betting and internet betting.
Big maximum bets for the high rollers.
Huge range of bets, especially for US events
Great reputation
Great juice, i.e. low margins.

Negatives:
Dated looking website.
In reviewing this site, I didn’t see any option to view the odds without being logged in. Although I managed to do it in a Google search.
You can have an account with only one of their online betting sites.

Bookmaker, www.bookmaker.eu, is one of the longest established internet bookmakers; they are now part of the BetCris group. Their juice is typically 4 to 5%. They welcome both professional and recreational bookmakers and have got the reputation as the place where lines originate, and many bookmakers wait to see their offers before laying odds themselves. They offer internet betting and phone betting. Maximum wagers are $5,000 on the internet, and $20,000 over the phone, but larger limits are routinely agreed with high rollers over the phone.

Bovada, www.bovada.lv, Bovada was founded by the well-known and trusted Bodog in 2011 when Bodog itself pulled out of the US market. Bovada only accepts US players, so the split gives an opportunity for US bettors to still use the familiar Bodog brand while at the same sheltering their non-US clientele from any potential fallout caused by any future actions of the US authorities. Bovada doesn’t offer the same range of sports and odds as the other major sportsbooks, but it’s well trusted and its juice is reasonable, again around 4 to 5% for most lines.

BetDSI, www.betdsi.eu , located in Costa Rica. BetDSI like Bookmaker, is a part of the BetCris group, but they are bot run separately. BetDSI offers generous regular deposit bonuses, a 20% reload bonus and a 50% first deposit bonus up to $50. Their juice is good, normally around 4%, there have been some issues with waiting time for withdrawals but they are a trustworthy company with a comprehensive range of sports to bet on.

Betonline, www.betonline.ag, founded in 2001, now located in Panama, they employ over 300 employees in Panama. They offer juice of around 5 to 6%. They place great importance on customer service. They have a very well designed website and also offer mobile betting. They have a generous loyalty program and offer a whopping 25% signup bonus of up to $1,000.