FanDuel is betting a $150 welcome bonus the Bills will lose by 20+ to the Dolphins on Halloween weekend (Buffalo is projected to win by 6): Here’s how Bills Mafia can take that bet

NFL Week 9 on Halloween weekend sees the local Buffalo Bills square off with their AFC East rival Miami Dolphins at Highmark Stadium. Riding a three-game winning streak, but taking on an enigmatic Dolphins squad that will be playing just their second game since the return of quarterback Tua Tagovailoa, Buffalo could be considered a risky bet this Sunday.
Unless, that is, you’re a member of the Bills Mafia without a FanDuel account—and you know how to use the fine print to your advantage.
Earlier this week, FanDuel Sportsbook announced a new, industry-leading sign-up offer that delivers $150 in bonus bets (the sports betting equivalent to site credit) and three months of free NBA League Pass after you bet your first $5. The catch? To unlock the $150 in bonus bets, your $5 bet needs to win (the NBA League Pass free trial is guaranteed regardless of your $5 bet’s outcome.)
At first glance, this might seem limiting, but clever bettors have realized they can take advantage of FanDuel’s “Alternate Spread” odds, and the lack of an odds limit in the promo’s terms, to guarantee they’ll unlock their $150 bonus if the Bills either win or lose by fewer than 20 points (you read that right).
Here’s what to do.
The key to maximizing this deal lies in knowing how to exploit FanDuel’s Alternate Spread market for the Bills vs. Dolphins game, which lets you adjust the spread in your favor. In this example, we’ll break down how to bet on the Bills to win or lose by 20 or fewer points, a scenario that’s highly likely based on current projections (the Bills are actually projected to win by 6).
Note: While this article focuses on the Bills, NFL bettors across the country can use similar strategies to unlock their bonuses, wagering on whatever teams or games they’d like.
Follow these steps to outsmart FanDuel’s promo:
Most sports betting promos like this come with an odds cap, often limiting your qualifying bet to -500 odds or higher, forcing you to make riskier wagers to unlock your bonus bets. FanDuel’s offer, however, doesn’t have that restriction. For clever bettors, this opens up the possibility to exploit Alternate Spread bets like +19.5 for the Bills. You’re able to play it smart, avoid riskier bets, and give yourself the best possible chance to come out on top with your $150 in bonus bets.
Once you’ve unlocked your $150 in bonus bets, it’s time to turn those funds into withdrawable cash. The beauty of FanDuel’s offer is that any profits from your bonus bets can be withdrawn as cash—no strings attached. To help you make the most of this opportunity, we’ve highlighted three Bills-specific betting strategies that can maximize your potential payout.
These examples feature updated odds heading into the Bills vs. Dolphins NFL Week 9 game on Halloween weekend. While odds may shift slightly closer to game time, the overall strategy remains the same. By using FanDuel’s flexible promo terms to your advantage, you can turn bonus bets into real profits. Whether you’re going for a safe bet or a high-reward play, the goal is clear: maximize your bonus bets to pocket withdrawable cash.
For those confident in the Bills making a deep playoff run, backing them to win Super Bowl LIX could be a rewarding use of your bonus bets. At +850 odds, placing a $150 bonus bet on the Bills would yield a $1,275 profit if they secure the championship. This strategy offers a potential for a significant payout from your bonus.
If you believe the Bills will dominate the conference, betting on them to win the AFC provides solid odds. With +420 odds, placing your $150 bonus bet would result in $630 in profit if they advance to the Super Bowl. This middle-ground bet combines a promising return with moderate risk, making it an attractive choice for fans.
For a high-risk, high-reward play, betting on Josh Allen to lead the NFL in passing yards offers an exciting opportunity. With long-shot odds of +15000, placing your $150 bonus bet on Allen could bring in a whopping $22,500 in profit if he finishes the season as the top passer. This is a bold option for those willing to take a gamble on Allen’s talent and leadership.
By using FanDuel’s terms to your benefit, you can approach these betting strategies in ways that balance risk and reward. Whether your bet is on the Bills’ Super Bowl chances, their AFC standing, or Josh Allen’s passing yard potential, your $150 in bonus bets gives you the flexibility to maximize each play for real returns.
FanDuel’s lack of an odds limit and the flexibility of their Alternate Spread market give savvy Bills fans a clever way to unlock $150 in bonus bets. By carefully navigating the fine print, you can turn this seemingly tricky offer into a smart, low-risk play. Whether you use the funds for bold bets like Josh Allen leading the league in passing yards or stick to safer strategies, FanDuel’s promo gives you the edge to bet smarter. Use this FanDuel promo code to get started today.
If you already have a FanDuel account, check out the similar deals available from BetMGM, DraftKings, and bet365 for NFL games this weekend.
Gambling Problem? Call 1-800-GAMBLER. Hope is here. GamblingHelpLineMA.org or call (800) 327-5050 for 24/7 support (MA). Call 1-877-8HOPE-NY or text HOPENY (467369) (NY).
21+ and present in select states. FanDuel is offering online sports wagering in Kansas under an agreement with Kansas Star Casino, LLC. Gambling Problem? Call 1-800-GAMBLER or visit FanDuel.com/RG (CO, IA, KY, MI, NJ, OH, PA, IL, TN, VA, VT), 1-800-NEXT-STEP or text NEXTSTEP to 53342 (AZ), 1-888-789-7777 or visit ccpg.org/chat (CT), 1-800-9-WITH-IT (IN), 1-800-522-4700 or visit ksgamblinghelp.com (KS), 1-877-770-STOP (LA), visit www.mdgamblinghelp.org (MD), 1-800-522-4700 (WY), or visit www.1800gambler.net (WV).