Register with Underdog promo code TOPACTION, make your first deposit, and get it matched at a 50% rate in bonus funds, up to $1,000. Now is an exciting time to sign up, as the Lions vs. Bills Thursday night hands you Josh Allen, Jared Goff and the first regular season game inside Buffalo's new Highmark Stadium.
Register for an account to also make MLB DFS picks on Braves vs. Cubs (7:40 p.m. ET on TBS). This $1,000 Underdog welcome bonus is one of the most rewarding DFS promos on the market. I encourage you act now to create your account, that way your deposit clears in time to have your bonus funds ready to deploy.
What is Underdog Promo Code TOPACTION?
See all the most pertinent information about Underdog promo code TOPACTIONincluded in the table below:
| Detail | Terms |
|---|---|
| Promo code | TOPACTION |
| Welcome offer | 50% deposit match, up to $1,000 |
| Minimum deposit | $5 |
| Deposit needed to get $1,000 | $2,000 |
| Age requirement | 18+, 19+ in AL and NE, 21+ in AZ, MA and VA |
| Sports in focus | Lions vs. Bills, Braves vs. Cubs, CFB Week 3 |
| Verified | September 15, 2026 |
How to Sign Up With Underdog Promo Code TOPACTION
- Tap this offer link to open a new Underdog DFS account.
- Enter Underdog promo code TOPACTION when prompted.
- Deposit at least $5 using PayPal, a debit card or a credit card.
- Underdog matches 50% of your deposit in the form of bonuses, up to $1,000 with one of the best NFL DFS promos.
Lions vs. Bills Prediction: Target Total Points
- Lions vs. Bills is a game between two offenses that 30 points in Week 1. Buffalo outscored Houston 36-31, and Detroit survived New Orleans 31-30 in overtime.
- Allen threw for more than 300 yards and accounted for four scores in Buffalo's season opener.
- Chris Olave piled up nearly 200 receiving yards on an injury-depleted Lions secondary.
- My leans: Allen higher passing yards, and Jahmyr Gibbs higher rushing yards.
Braves vs. Cubs Prediction: Attack Pitching Gap
- Martin Perez brings a 3.08 ERA to the mound for Atlanta. Kevin Gausman answers with a 4.60 ERA for Chicago.
- Gausman alternates gems and disasters since his move to the North Side.
- Atlanta hits for a 92 wRC+ against left handed pitching (20th in baseball), which favors Perez in this spot.
- Chicago took the series opener 7-3, with Nico Hoerner, Michael Conforto and Michael Busch all driving in runs.
- My Braves vs. Cubs predictions: Matt Olson higher total bases, plus Seiya Suzuki higher hits. Olson owns 39 homers and an .831 OPS while playing every game this season.
Use Your Bonus Funds on LSU vs. Ole Miss CFB
- Lane Kiffin returns to Oxford as LSU visits Ole Miss, Saturday at 7:30 p.m. ET on ABC in a duel between two top-ten ranked teams.
- Home teams claimed the last six meetings in the LSU vs. Ole Miss series, so respect Ole Miss having a chance here.
Why Sign Up With Underdog Today?
- A 50% deposit match rewards as much as $1,000 in usable bonus funds.
- Player projections and prop style pick'em contests form the core of the Underdog experience, which rewards players who study individual players.
- Underdog offers fast payouts with PayPal, debit cards, and other methods.
Register now with Underdog promo code TOPACTION, put down your $5+ qualifying entry, and put up to $1,000 in bonuses to work on NFL and MLB.
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