Betting on underdogs is fun when you win, but when you don’t, it can be hard to escape that “I should have known better” feeling. But if you sign up with our Caesars Sportsbook promo code SMARTBONUS1000 and claim your $1,000 bonus, you can roll with one of tonight’s NBA Playoff underdogs worry-free.
No, this bonus will not reveal who the winners are or anything like that. But it will protect your stake, up to $1,000. What do we mean by “protect?” Read on to learn more about this generous welcome offer and the betting lines for the Cavaliers vs. Celtics and Mavericks vs. Thunder.
Caesars Sportsbook Promo Code: SMARTBONUS1000
The current promo code for Caesars Sportsbook is SMARTBONUS1000. New bettors using this code can qualify for a first-bet offer up to $1,000. Should your initial wager result in a loss, Caesars Sportsbook credits back a bonus bet equal to the amount of your stake, capped at $1,000. This ensures new users can place their first bet with more confidence, knowing there’s a safety net up to a grand.
| Caears Sportsbook Promo Code | SMARTBONUS1000 |
| Caears Sportsbook Promo | Up To $1000 First Bet |
| T&Cs | Offer valid and must be physically present in AZ, CO, IL, IN, IA, KS, KY, LA, MA, MD, ME, MI, NJ, NY, NC, OH, PA, TN, VA, WV, and WY only. |
| Verified | May 9, 2025 by Mike McDermott |
GAMBLING PROBLEM? CALL 1-800-GAMBLER, CO, DC, IL, IN, KY, LA, MD, MS, NC, NJ, OH, PA, TN, VA, WV, WY, (800) 327-5050 or visit gamblinghelplinema.org (MA). Call 877-8-HOPENY/text HOPENY (467369) (NY). 1-800-NEXT-STEP AZ, 1-800-522-4700 KS, NV, 1-800-BETS-OFF IA, Call 1-800-981-0023 – PR Only, 1-800-270-7117 for confidential help MI.
Please Gamble Responsibly. 888-789-7777/visit ccpg.org (CT), or visit www.mdgamblinghelp.org (MD). 21+ and present in most states. (18+ DC/KY/NH/WY). Void in ONT/OR/NH. Eligibility restrictions apply.
How Does The $1,000 First Bet Caesars Sportsbook Promo Work?
How would you feel knowing you could chase a massive payday by putting as much as $1,000 down on an underdog like the Cavs and Mavericks without worrying about losing? That’s what a $1,000 First Bet from Caesars Sportsbook can do for you.
Let’s say you want to shoot for the moon and put $1,000 down on the Cavs to beat the Celtics in Boston at +800 ($9,000 payout; your stake plus $8,000 in winnings). You want to do this despite Cleveland not beating the Celtics at the Garden since that 132-123 OT win early in the 2022-23 season (Oct. 22, 2022) and Boston’s 37-4 home record this season.
Sure enough, the Celtics close out the series with a win over the Cavs.
You lost the wager, but since you received a $1,000 First Bet after signing up for an account with Caesars Sportsbook, you get your stake back as a bonus bet. Bonus bets cannot be withdrawn like money, but they allow you a second chance with money you would have otherwise lost.
It could take a couple of days for the bonus bet to appear in your account. When it does, use it within 14 days of getting it. Otherwise, Caesars will delete it from your account. If you thought losing $1,000 on a wager was frustrating, imagine what it would feel like to lose $1,000 again, not because you lost a wager but because you forgot to use it.
How to Claim Your $1,000 First Bet From Caesars Sportsbook
Caesars makes it nice and easy for new users to claim their welcome offer when they sign up for a new account:
- Click on our Caesars Sportsbook promo code link.
- Select your state from the drop-down menu, then click ‘Continue.’
- Provide Caesars Sportsbook with the requested information and sign up for a new account.
- Remember to enter the promo code SMARTBONUS1000 when prompted.
- Make your first deposit (min. $10).
The $1,000 First Bet is now yours, but you must place your first wager to use it. You are not required to use it on one of tonight’s NBA Playoff games, but you will need to use it within 30 days of opening your account.
NBA Playoff Odds: Wednesday, May 15
Here are the betting lines for tonight’s games with odds from Caesars Sportsbook:
Cleveland Cavaliers vs. Boston Celtics @ 7 p.m. ET on TNT
- Point Spread: Cavaliers +14.5 (-110); Celtics -14.5 (-110)
- Moneyline: Cavaliers +800; Celtics -1400
- Total: O/U 204.5 (-110/-110)
Dallas Mavericks vs. Oklahoma City Thunder @ 9:30 p.m. ET on TNT
- Point Spread: Mavericks +4 (-110); Thunder -4 (-110)
- Moneyline: Mavericks +143; Thunder -170
- Total: O/U 213 (-110/-110)
Our Picks: Cavs-Celtics OVER 204.5, Mavericks ML
