Saturday’s college basketball slate is stacked with high-stakes matchups, featuring top-ranked teams and conference rivals battling for postseason positioning. With key games on the NCAAB odds board, this is the perfect time to take advantage of the Underdog Fantasy promo code TOPACTION to elevate your college basketball betting experience.
New users who register with Underdog Fantasy promo code TOPACTION receive a 50% deposit match, up to $1,000 in bonus funds. That means if you deposit $2,000, Underdog Fantasy credits your account with an additional $1,000 to use on pick’em contests featuring player props. Whether you're backing a dominant scorer or a tenacious rebounder, this promotion is a great way to maximize your entries.
Underdog Fantasy is available in multiple states, including AL, AK, AZ, AR, CA, DC, DE, GA, IL, KS, KY, MA, MN, MO, NE, NM, NC, ND, OK, OR, RI, SC, SD, TN, TX, UT, VT, VA, WI, WV, and WY.
This deposit match bonus comes with a 1x playthrough requirement, meaning you must wager both your deposit and bonus amount before making any withdrawals. For example, if you deposit $2,000 and receive a $1,000 bonus, you must wager a total of $3,000 within 14 days to meet the requirement.
Use the Underdog Fantasy promo code TOPACTION or click the sign-up module below to claim your bonus and start making college basketball player picks today.
How to Use Underdog Fantasy Promo Code TOPACTION for NCAAB Saturday
Once you've signed up and funded your account, head to the Underdog Fantasy pick’em section to browse a variety of college basketball player projections. Available categories include points, rebounds, assists, and combined stats like points + rebounds + assists. Your goal is to decide whether each player is set to record a Higher or Lower total than the projected stat line.
Underdog Fantasy allows you to add up to six picks in a single entry, with a maximum payout of 35x. If your lineup includes at least three picks, you must select either Standard or Flex play:
- Standard Entry: All picks must be correct to win up to 6x your entry amount.
- Flex Entry: A safer option that provides a lower payout but still rewards winnings even if one pick falls short—win 3x if all picks hit and earn 1x if one pick misses.
To illustrate how this works, here’s an example of a three-pick lineup built using bonus funds from the Underdog Fantasy promo code TOPACTION for Saturday’s biggest college basketball games:
- Caleb Love (Arizona) – Higher than 17.5 Points
- Graham Ike (Gonzaga) – Lower than 7.5 Rebounds
- Cooper Flagg (Duke) – Higher than 6.5 Assists
If you enter this lineup in Standard mode, you win 6x your wager if all three picks hit. Opting for Flex mode gives you a 3x payout if all three selections win and still returns a 1x payout if one pick falls short.
With conference play intensifying and March Madness on the horizon, now is the best time to capitalize on Underdog Fantasy’s deposit match bonus. Sign up today using Underdog Fantasy promo code TOPACTION and start building your college basketball DFS lineups with bonus funds.
Underdog Fantasy Sign-Up Steps
Follow the steps below to claim the Underdog Fantasy promo code TOPACTION and make your first deposit on Saturday:
- Step 1: Click this link or any sign-up module on this page to download the Underdog Fantasy app.
- Step 2: Create a username and password.
- Step 3: Fill in your email, date of birth, and all other required personal information to create a new Underdog Fantasy account.
- Step 4: Enter the Underdog Fantasy promo code TOPACTION to get up to $1,000 in bonus funds from the 50% deposit match welcome offer.
- Step 5: Agree to the Underdog Fantasy Terms of Use and Privacy Policy. Confirm you are at least 18 years old (19+ in Alabama/Nebraska, 21+ in Massachusetts/Arizona).
- Step 6: Click "Sign Up."
- Step 7: Make your first deposit of $10+. It is matched at a 50% rate, up to $1,000 in bonus funds.
- Step 8: Create your first entry at Underdog Fantasy with picks from college basketball or any sport.
Must be 18+ (19+ or 21+ depending on state of residence) and within applicable state. Full T&Cs apply.