I signed up with the Underdog promo code TOPACTION ahead of Thursday Night Football the other day, and this Lions vs. Panthers slate gives me one of my favorite setups of the season to make NFL DFS picks on.
Detroit (2-1) travels to Charlotte to face a Carolina team (1-2) missing two starting cornerbacks, and new users who sign up with Underdog turn a $5 entry into $100 of bonus cash. Here is exactly how to claim it, why I trust it, and the three Lions vs. Panthers DFS picks I suggest you build your lineup around today, Oct. 5, 2026.
How to Claim Underdog Promo Code TOPACTION
How fast the top DFS apps let you sign up is an important factor. Underdog took me just three minutes to register at, which was a speed verified by my colleague Lee Tran. Here are the steps we followed to sign up with Underdog promo code TOPACTION:
- Download the Underdog Fantasy app or open the mobile site.
- Tap "Sign Up" and enter your basic information.
- Locate the promo code field and type in TOPACTION.
- Enter any contest worth $5 or more to activate the offer.
- Receive $100 in bonus entries instantly after your first entry clears.
That instant turnaround is the reason I favor the Underdog sign-up bonus over slower-paying offers from other DFS apps. You get my bonus in hand before the Lions and Panthers even take the field tonight.
Underdog Promo Code TOPACTION: Offer Details
I always check the fine print before I recommend NFL DFS promos to new users, and this table covers the information I believed matters most:
| Detail | What I Found |
|---|---|
| Promo Code | TOPACTION |
| Offer Type | Play $5, Get $100 Bonus |
| Payout Speed | Instant after first entry |
| Minimum Entry | $5 |
| Eligible Sport | NFL, including Lions vs. Panthers SNF |
| New User Requirement | Yes, first time sign up only |
I like that the Underdog promo code TOPACTION welcome bonus pays out in full regardless of how your first entry settles. A win or a loss still unlocks $100 in bonus entries, which removes the pressure of needing a perfect first slate.
Lions vs. Panthers Preview
Carolina enters this Sunday night game missing starting cornerbacks Jaycee Horn and Mike Jackson, and that secondary damage shows up directly in my player research:
- Detroit's offense sits at 31 points per game through three weeks.
- Jahmyr Gibbs holds six total touchdowns and 463 scrimmage yards already.
- Amon-Ra St. Brown owns 23 catches for 228 yards and five touchdowns on 35 targets.
- Carolina returns to Sunday Night Football for the first time since 2016, adding extra motivation on their side of the ball.
I weigh that last point carefully, since a hungry home crowd occasionally tightens up a short handed defense. Even with that factored in, my lineup is built around the Lions' skill-position players.
My Lions vs. Panthers NFL DFS Picks
Here are the three plays I built my Underdog lineup around for SNF and why I support each one tonight:
- Jahmyr Gibbs, RB, Lions, More than 74.5 Rushing Yards – I target Gibbs as my anchor piece. He has touched the ball over 20 times in all three games, and the Carolina run defense allowed David Montgomery multiple scores earlier this season. I expect a heavy workload against a defense already dealing with injuries on the back end.
- Amon-Ra St. Brown, WR, Lions, More than 5.5 Receptions – I lean into St. Brown's target share against a Panthers secondary missing its top two cornerbacks. His five touchdowns in three games tell me Jared Goff trusts him inside the red zone, and I expect that trend to continue.
- Jameson Williams, WR, Lions, More than 44.5 Receiving Yards – I use Williams as my value and leverage play. He holds 137 yards on 17 targets but zero touchdowns through three weeks, and I view him as overdue against a banged up secondary that struggles with big play speed.
If you like my analysis and breakdown of Underdog promo code TOPACTION, sign up to place your own NFL DFS picks on Lions vs. Panthers. Trust Underdog to boost your bankroll before the action kicks off from Bank of America Stadium.
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