Best Online Sportsbooks 2021

Posted by Chris Spencer . Last updated:

We’ve carefully evaluated the best online sportsbooks in 2021 where you can win real money on NFL footballNBA basketball, college sports, entertainment, and more. Our expert picks combine top-notch security, ease of deposits and withdrawals, and the highest bonuses. From the Super Bowl to March Madness to the Olympics and everything in between, this guide will help you choose the best US online sportsbook for your preferred wagers.

Best Online Sportsbooks For US Players

Here are our favorite sports betting outlets, updated daily, for US players.

Top Sports Book:


Best For
Loyal Sports Bettors

Do you like being rewarded for making sports bets? That is essentially what is happening when you sign up for a VIP Program. At most sportsbooks, you are signed up automatically, and the more you bet, the higher you move through a tier-based system. You can win perks such as:

  • higher deposit amounts
  • a dedicated account manager
  • luxury items like trips and cars!
Best Bonus Type:
VIP Loyalty Program

Earn rewards on every sports bet with Bovada’s VIP Program. This site offers players one of the best ongoing experiences as far as loyalty rewards and customer service, which is a big reason why they are our #1 ranked sports book.

Best Sports Bonus:


Best For
First Timers

Some sports books will actually let you start growing a bank roll without depositing real money. If you don’t want to risk money right away, Intertops offers a $20 risk-free bet to get the ball rolling.

Bonus Details:
$20 Free Play

Intertops also offers a Sports Parlay Bonus where, if you place a four-selection parlay and only hit 3-of-the-4 bets, you are entered in a drawing for one of 20 $50 FREE bets each week.

Best Welcome Bonuses


Best For
New Players

The welcome bonus is the first bonus that a player will get when they sign up for a sportsbook. It usually offers a deposit bonus, which is matched by the sportsbook up to a certain amount. This could be one deposit, or spread out over multiple deposits. You might even get a free bet or two!

Best Welcome Bonus
50% Match Up To $1000

BetNow has three different welcome bonuses for you to check out:

  • 100% match up to $50
  • 50% match up to $1,000 (Best Option.
  • 25% match up to $1,000
Best LIVE Betting


Special Offer:
$50,000 NFL Playoff Contest

Live in-game betting has gotten extremely popular at online sportsbooks. Basically, you can bet on games as they’re happening, and you can bet on certain situations. For example, will the Kansas City Chiefs call a run or a pass on their next play? You can bet on that now, but you have to be quick: these bets don’t last long.

Welcome Bonus:
50% up to $1000 features a ton of live betting options for you to choose, such as (but not only):

  • NFL football
  • NBA basketball
  • Tennis
  • Soccer
  • esports
Best Bitcoin Bonus:


Best For
Higher Banking Limits

More online sportsbooks are offering Bitcoin and other cryptocurrencies as a deposit and withdrawal method. You will also get perks for depositing with Bitcoin, including:

  • Higher deposit/withdraw limits
  • Quicker transactions
  • Most importantly, the safest transactions out there.
Best Bitcoin Bonus
100% Match up to $1,000 Welcome Bonus

BetOnline has a fantastic welcome bonus for players depositing with crypto for the first time. They feature a 100% match bonus, up to $1,000.

How We Pick The Best Online Sportsbooks

We’ve tested and reviewed hundreds of online sportsbooks accepting US players and have recommended only our favorites. After weighing safety and security, ease of use, variety of sports & props offered, and their bonuses and deposit methods, these are the sites we trust with our own money. Here’s what our team looks for when we review these sites:

Are US Players Accepted?

Are US Players Accepted?

We’re here to help you enjoy online sports betting – if an online sportsbook doesn’t accept US players, you won’t find it in our site critiques.

Mobile Friendliness

Mobile Friendliness

Some of the best sports bets are placed on the fly, which is why we test every sportsbook we review to assess its mobile friendliness. Before we recommend a sports betting site, we make sure it has either a great mobile betting option or an app so you can bet on sports from your phone.

Sport and Prop Variety

Sport and Prop Variety

There’s nothing worse than finding a sportsbook that doesn’t offer bets on your favourite sports. So, we make sure the ones we review offer the sports USA players crave. Whether it’s college basketball, football, soccer, or the presidential election, the sites we recommend have what you’re looking for.

Bonus Availability and Quality

Bonus Availability and Quality

Choosing the best sportsbook can often come down to the gambling site offering the best bonus. Are there welcome bonuses available? Reload bonuses before March Madness or the Super Bowl? Are the playthrough requirements sensible? Bonuses are a huge factor when we review.

Deposit and Withdrawal Methods

Deposit and Withdrawal Methods

You’re here to win, so this is a big one. The online sportsbooks we recommend have the deposit methods that US players use, from credit cards to cryptocurrency. Are the maximum and minimum limits reasonable? Are there special bonuses for certain deposit methods? How quickly are your withdrawals processed? Getting your money in and out of the casino quickly and safely are core areas our evaluations focus on.

Reputation, Credibility and Trustworthiness

Reputation, Credibility and Trustworthiness

We don’t recommend any sportsbook online before verifying that they’re credible and trustworthy. All the sites recommended on Gamble Online use SSL encryption and are forthcoming about their security & privacy policies. Our analysis factor in the overall credibility and trustworthiness of a site and rank it accordingly.

Find the Perfect Online Sportsbook

Just tell us what you want to bet on, how you want to deposit, and what type of bonus you want, and we’ll find the best online sportsbook for you.

How to Choose a Sportsbook

In short, the best way to choose a sportsbook online is to do your homework ahead of time and do not make a rash decision by selecting the first outlet that catches your eye.

Bonuses and Promotions

Bonuses and Promotions

Don’t get caught leaving FREE money sportsbook bonuses on the table. The goal of every sportsbook online is to earn your business. To achieve this, they’ll offer generous welcome, reload and deposit bonuses. Plus, most gambling sites offer unique promotions throughout the year. Be sure to take advantage of those bonuses when signing up and if you’re committed to the book, sign up for their loyalty programs.

Deposit options

Deposit options

The more deposit options a sportsbook offers, the higher quality the site. Think about it, if you are considering signing up, are you going to lean towards the online sportsbook that offers just a few banking methods, or embraces several including cryptocurrencies like Bitcoin?

Variety of Events to Wager On

Variety of Events to Wager On

It’s great when sportsbooks accepts bets on the big sports like NFL, MLB, NBA and European soccer, but what separates good from great is when these gambling sites let you wager on non-sports events. For example, most of our top-rated books at the top of this page let you wager on politics, entertainment and, in some cases, e-gaming.

Quick Payouts

Quick Payouts

Let’s imagine you just hit a 5-team parlay and cashed in a five-figure win. You might want to take some of those profits and head to the cashier to withdrawal. The sportsbooks online that process payouts the fastest are worthy of your time. We’re several decades into this century and it shouldn’t take that long to process an electronic banking transaction. The good news is that if you wager with Bitcoin, payouts can be processed the same day with many online sportsbooks.

Why You Can Trust Gamble Online’s Sportsbook Reviews

a white american football in the center of a safety badge

1. Proven Industry Leader

With millions of satisfied visitors, we are the internet’s go-to resource for the best online sportsbooks.

a white laptop showing a user profile and two check marks

2. A Team of Experts

All the best online sportsbooks in the USA recommended on Gamble Online are vetted and used personally by our team of sports betting experts.

a white coach's playbook icon

3. Current Information

You can count on our assessments and guides to be updated regularly and contain the most current information

Best Online Sportsbook USA

Blacklisted Online Sportsbooks

Based on Gamble Online’s high standards, these online sportsbooks failed to meet all the characteristics of a quality and safe site, details of which we just laid out in the section above.

    • Denied Payouts
    • Frequent User Complaints
  • beted logo
    • Denied Payouts
    • Fraudulent Activity Reported

Online Sportsbook FAQs

Recommended Sportsbook



Min Deposit $20


#1 Sportsbook USA

Back To Top
Back To Top