Underdog Promo Code RUSSELL: Play $5, Get $75 Bonus for NBA Picks This Week

New basketball fans looking to get in on the action for Tuesday’s slate of games can take advantage of the latest Underdog promo code RUSSELL. This welcome offer, available exclusively for new users, is simple: sign up, play your first $5 entry, and you will instantly receive $75 in bonus entries.

These are credited as ten separate $10 entries, giving you ten different chances to make your picks. You can use these bonus entries on player selections for the exciting San Antonio Spurs vs Oklahoma City Thunder matchup tonight, or apply them to any other NBA game on the schedule this week.

Underdog Promo Code RUSSELL for NBA Jan. 13 Games

This welcome bonus is one of the most straightforward in the fantasy sports market. To claim it, new Underdog customers simply need to register for an account and place their first real-money entry of at least $5. Once that first entry is submitted, Underdog will immediately credit your account with $100 in bonus entries.

The $100 bonus is not just one lump sum; it’s broken down into ten separate $7.50 entries. This structure gives you ten different chances to build lineups and make your picks, whether you want to spread them across the Spurs vs Thunder game or explore other NBA action. This offer is exclusively for new players who are at least 18 years old and physically located in a state where Underdog operates (age requirements are 19+ in AL/NE and 21+ in AZ/MA/VA).

How to Use Your Underdog Promo Code Tuesday

The San Antonio Spurs visit the Oklahoma City Thunder on Tuesday, January 13, for what promises to be an intriguing matchup. The game will be played at the home of the Thunder in Oklahoma City. Both teams enter the contest with impressive net ratings this season, as the Thunder boast a stellar +12.9 while the Spurs are a strong +5.2. Injuries will play a factor, with the Spurs missing key scorer Devin Vassell (thigh). The Thunder’s injury report is more extensive, listing C-F Isaiah Hartenstein (Calf), G Nikola Topić (Groin), and C Thomas Sorber (Knee) as out for the game.

San Antonio Spurs vs Oklahoma City Thunder Player Analysis

With several key players on the court and some notable absences, the player selection market offers plenty of angles for this showdown. Here are some popular lines to consider:

• Shai Gilgeous-Alexander (OKC): 31.5 Points, 6.5 Assists, 4.5 Rebounds
• Victor Wembanyama (SAS): 21.5 Points, 9.5 Rebounds, 2.5 Blocks
• Chet Holmgren (OKC): 16.5 Points, 8.5 Rebounds, 1.5 Blocks
• De’Aaron Fox (SAS): 18.5 Points, 5.5 Assists, 3.5 Rebounds
• Jalen Williams (OKC): 17.5 Points, 5.5 Assists, 5.5 Rebounds
• Keldon Johnson (SAS): 13.5 Points, 5.5 Rebounds, 1.5 Three-Pointers Made
• Luguentz Dort (OKC): 7.5 Points, 3.5 Rebounds, 1.5 Three-Pointers Made
• Stephon Castle (SAS): 15.5 Points, 5.5 Assists, 4.5 Rebounds
• Aaron Wiggins (OKC): 9.5 Points, 3.5 Rebounds
• Julian Champagnie (SAS): 12.5 Points, 6.5 Rebounds, 2.5 Three-Pointers Made

All eyes will be on Shai Gilgeous-Alexander, whose points market is set at 31.5. This number is right on his season average, as he’s posted 31.86 points per game (1,211 points in 38 games) on a remarkable 55% field goal percentage. As the team’s leader in usage rate (33.55%), he is always a threat to have a massive scoring night.

In the frontcourt, the marquee matchup pits Victor Wembanyama against Chet Holmgren. Wembanyama’s rebounding line is at 9.5, a number he has comfortably exceeded by averaging 11.12 rebounds per contest this season. Holmgren’s blocks line is 1.5. The Thunder big man has been a premier shot-blocker, averaging 1.82 per game. With fellow center Isaiah Hartenstein sidelined, Holmgren will anchor the paint defense for Oklahoma City. For the Spurs, the absence of Devin Vassell (15.0 PPG) should open up more offensive looks for his teammates. Keldon Johnson‘s point total is 13.5, right in line with his 13.69 PPG average, and he could see an uptick in shot attempts.

How to Activate the Underdog Promo Code

Ready to get started? Claiming your $100 bonus is a quick and easy process. Follow these steps to register your new account and activate the offer ahead of the Spurs vs Thunder game.

1. Register Your Account: Begin by signing up for a new Underdog account. During registration, you will be prompted to enter basic personal information to verify your identity. Make sure to use the promo code RUSSELL to ensure you qualify for the welcome bonus.
2. Make Your First Deposit: Once your account is created, navigate to the cashier and make a first-time deposit of at least $5. Underdog provides several secure payment methods for your convenience.
3. Place Your First Entry: Build your first entry slip. You can choose selections from the Spurs vs Thunder game or any other market. Place an entry of at least $5.
4. Get Your Bonus: As soon as you submit your qualifying $5 entry, Underdog will instantly credit your account with $100 in bonus entries (formatted as ten $10 entries).

Remember, to be eligible you must be a new user who meets the age (18+, 19+ in AL/NE, 21+ in AZ/MA/VA) and location requirements.

When building your entry, you have two main options. A Standard entry requires at least two picks, and every single pick must be correct to receive the largest payout. Alternatively, you can choose a Flex entry, which requires three or more picks. This option provides a safety net, allowing you to still receive some winnings even if one of your picks is incorrect.

The post Underdog Promo Code RUSSELL: Play $5, Get $75 Bonus for NBA Picks This Week appeared first on Russell Street Report.

Source: https://russellstreetreport.com/2026/01/13/sports-betting/underdog-promo-code-russell-play-5-get-75-bonus-for-nba-picks-this-week/