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The UFC 321 main event is a heavyweight title fight between Tom Aspinall vs. Ciryl Gane in Abu Dhabi, United Arab Emirates, on Saturday, and the latest DraftKings promo code offers $300 in bonus bets and three free months of NBA League Pass, perfect for placing your UFC 321 bets. According to the latest UFC 321 odds at DraftKings, Aspinall is the -345 favorite (risk $345 to win $100), while Gane is a +275 underdog. The UFC 321 main card starts at 2 p.m. ET. Claim your DraftKings promo code here:

For the full terms and conditions and how to claim the promo, read our DraftKings promo code review.   

How to claim the DraftKings promo code 

There's no code required for this online sports betting offer, but you have to be of legal age in a state where DraftKings legitimately operates. You must also be a new user at the sportsbook to get the offer, meaning you could not have previously signed up for a DraftKings account. Here's how to sign up for one of the top betting sites.

  1. Click "Claim Bonus" on this page or click here.
  2. Create a DraftKings Sportsbook account by entering all required information, including name, email and the last four digits of your Social Security number.
  3. Agree to DraftKings' terms and conditions.
  4. Make an initial deposit of at least $5
  5. Place a first bet of at least $5 with odds of -500 or shorter.

Get started here:

DraftKings will give you bonus bets in the form of $25 slips within 72 hours of your qualifying wager settling as a win. Bonus bets are valid for seven days after they are received. They hold no cash value. Payouts from bonus bets are transferred to the user's cash balance and do not include the bonus bet stake.

UFC 321 betting preview

The fight between Tom Aspinall and Ciryl Gane is for the heavyweight title. Aspinall (15-2) is the moneyline favorite at -345, and Gane (13-2) is the +275 underdog in this collision. 

Aspinall goes into this bout 11-1 in his past 12 fights and has won three consecutive matches. This is his first fight in 15 months. All of his 15 victories have come by stoppage, including 14 of those coming in the first round. Gane has dropped his last two heavyweight title fights to Jon Jones and Francis Ngannou. 

Alexander Volkov vs. Jailton Almeida is another heavyweight contest on the card. Volkov is 38-11 in his career, and Almeida is 22-3 in his UFC career. According to DraftKings, Almeida is the -185 moneyline favorite and Volkov is the + 154 underdog. 

Also at UFC 321 is Aleksandar Rakić (-115) vs Azamat Murzakanov (-105) in a light heavyweight bout. A total of 13 fights are on the main card and prelims for UFC 321 on Saturday. 

Bet on UFC 321 at DraftKings Sportsbook, where new users get $300 in bonus bets and 3 free months of NBA League Pass: 

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DraftKings provides a "Responsible Gaming Center" tab for users on their profile pages. This landing page includes help for problem gambling as well as "Safer Play Tools," a list of options that allow users to limit their use of the app with deposit limits (daily, weekly or monthly), wagering limits, max wager limits and time limits. The platform also has a support team available 24/7 via live chat, and provides contact information for state and national helplines for those who need additional help. If you think you may have a gambling problem, you can call or text 1-800-GAMBLER.