On November 17, 2025, TheLines.com revealed a limited-time promotion from Fliff, the social sportsbook platform, targeting fans of the Miami Heat vs. Chicago Bulls NBA matchup set for November 21, 2025, at 8:10 PM Eastern Time. New users who sign up using the promo code LINESWEEP and make a $50 purchase will receive $100 in Fliff Coins — effectively doubling their initial investment. It’s not a real-money bet, but a social betting experience where players use virtual currency to pick winners, track stats, and compete for prizes. And with both teams firing on all cylinders this season, the timing couldn’t be better.
Why This Game Matters
The Miami Heat vs. Chicago Bulls game isn’t just another November contest. It’s a clash of two young, retooled rosters that have defied preseason expectations. The Heat, once seen as a playoff long shot, have transformed their offense into one of the league’s most fluid units. Ball movement is crisp, three-point shooting is consistent, and their bench depth is finally clicking. Analysts at TheLines.com describe their play as "free-flowing," a far cry from the isolation-heavy style that defined them last year. The Bulls, meanwhile, started the 2025-26 season with a shocking 5-0 record — a run no one predicted, especially after last year’s 28-win campaign. But they’ve since cooled off, losing four of their last six, exposing defensive gaps and inconsistent scoring.
That contrast makes this matchup a betting magnet. VegasInsider.com opened the game with the Heat as 2.5-point underdogs at -110, while the Bulls are favored at the same line. The over/under sits at 250.0 points — a high number, but one that aligns with recent trends. Action Network analysts are leaning Over 249.5 (-110), citing a pattern they’ve seen in early-season games: playoff-caliber teams face off, the visitor comes off a stretch of low-scoring games, and offense suddenly unlocks as November rolls in. "Defensive communication lags on the road," one analyst noted. "Offensive rhythm? That’s when it starts to peak."
What You Can Bet — And How
Fliff isn’t just offering a bonus — it’s curating the betting experience. For this game, users can build same-game parlays with props like:
- Miami Heat to win (conditional on Josh Giddey being out — he’s listed as questionable)
- Bam Adebayo: Over/Under on points or rebounds (he’s averaging 19.4 PPG and 11.2 RPG this season)
- Davion Mitchell: Over/Under on assists (he’s dishing 7.1 per game, often as the primary playmaker)
- Nikola Vucevic: Over/Under on points or rebounds (he’s been inconsistent, but still a threat inside)
- Matas Buzelis: Over/Under on points and blocks (the rookie is seeing more minutes and has shown defensive flair)
These aren’t just random props — they’re tied to real trends. Adebayo’s rebounding spikes when Vucevic is on the floor. Mitchell’s assist totals rise when the Heat’s guards get moving. And Buzelis? He’s become a dark horse for fantasy-style social betting.
Competing Offers and the Bigger Picture
Fliff isn’t the only one pushing bonuses. Bookies.com reported a $100 sign-up bonus from Rebet for the same game, using code BOOKIES. That’s not unusual — social sportsbooks are in a war for user acquisition. Fliff’s standard welcome package includes 5,000 Fliff Coins plus 1 Fliff Cash just for signing up. Add the LINESWEEP bonus, and you’re walking in with $150 in virtual currency. For casual fans, it’s a low-risk way to stay engaged.
But here’s the twist: social betting isn’t gambling. It’s entertainment. You can’t cash out Fliff Coins for real money — you win prizes like gift cards or merchandise. That’s why it’s legal in 48 states. And with the 2025-26 NBA season already delivering thrilling games, platforms like Fliff are betting on fan loyalty — not just odds.
Historical Context: A Rivalry Rekindled?
There’s history here. Deadspin recalled a recent matchup where the Heat crushed the Bulls, with rookie Kel’el Ware posting a 20-point, 14-rebound double-double and Norman Powell adding 19. That game, though undated, suggests Miami has the psychological edge. But the Bulls are different this year — younger, faster, more confident. This isn’t the same old rivalry. It’s a generational shift.
What’s Next?
Fliff’s LINESWEEP promotion expires after November 21, 2025. But don’t expect this to be a one-off. With the NBA season heating up, expect similar deals for upcoming games: the Warriors vs. Lakers, the Celtics vs. Nets, even the Thunder vs. Nuggets. Social sportsbooks are learning: fans don’t want just odds — they want stakes, stories, and a reason to care. This promotion gives them all three.
Frequently Asked Questions
How does the Fliff LINESWEEP bonus work?
New users who sign up with code LINESWEEP and deposit $50 get $100 in Fliff Coins — a 100% bonus on their first purchase. These coins can be used to make social picks on the Heat vs. Bulls game and other NBA matchups. Fliff Coins aren’t cashable for real money, but can be redeemed for gift cards or merchandise. The bonus is only valid for the November 21, 2025 game and expires after the final buzzer.
Is Fliff legal in my state?
Yes — Fliff operates legally in 48 U.S. states because it’s a social sportsbook, not a real-money gambling platform. Users play with virtual coins and win non-cash prizes. The only exceptions are Washington and Idaho, where social betting is restricted. Always check your state’s laws before signing up, but for most Americans, Fliff is a safe, legal way to engage with NBA games.
Why is the over/under set at 250 points?
The 250-point total reflects the offensive surge in early-season NBA games. Both teams rank in the top 12 in pace this season, and defenses are still adjusting. Action Network’s system shows that teams coming off low-scoring road stretches often explode offensively in November. The Heat’s ball movement and the Bulls’ transition game make 250 a reasonable, if slightly high, line — and the Over has been hitting in 6 of their last 8 combined games.
What’s the difference between Fliff and Rebet’s offers?
Both offer $100 bonuses for the same game, but Fliff gives you 5,000 coins plus 1 Fliff Cash on signup, then doubles your first deposit. Rebet’s $100 bonus is standalone. Fliff’s interface is more game-like, with leaderboards and daily challenges; Rebet leans toward traditional betting formats. For casual fans, Fliff feels like a game. For serious bettors, Rebet feels more like a bookie.
Can I use the bonus on other games?
The LINESWEEP bonus is tied specifically to the Heat vs. Bulls game on November 21, 2025. However, once you’ve claimed the $100 in Fliff Coins, you can use them on any other NBA or NFL games available on the platform. The bonus is just the entry point — the real value is staying engaged with the season through Fliff’s social features, which include live leaderboards and community picks.
Who are the key players to watch in this game?
For Miami, Bam Adebayo is the engine — his ability to control the paint and facilitate offense makes him the X-factor. Davion Mitchell’s playmaking could unlock the Heat’s offense if he’s aggressive. For Chicago, Nikola Vucevic must dominate the boards, and rookie Matas Buzelis could be the spark off the bench. Watch for Josh Giddey’s status — if he’s out, Miami’s offense shifts dramatically toward Adebayo and Jimmy Butler.