# US MLB, NFL & College Football betting & promo trends > Live situation record from CLSTR: https://clstr.news/situations/us-sports-betting-bonus-promotions > Updated: 2026-09-11T16:07:07.000Z. Sources: 31. Developments: 14. In September 2026, promotional activity shifted toward college football and the NFL. Major college football Week 2 matchups have driven significant activity across sports prediction markets and betting platforms. Market probabilities for key matchups include Alabama as a heavy favorite against Kentucky with a 79% moneyline probability, and Missouri favored against Kansas. In other matchups, Louisville holds a near-certain implied probability of victory over Villanova, while market data suggests a challenging outing for Ohio State quarterback Julian Sayin against the Texas defense. To coincide with the football season, various platforms have released new incentives. Polymarket has issued several referral codes providing users access to trading bonuses for NFL, MLB, and college football markets. Specifically, Polymarket is offering a $50 trading bonus for new US users who deposit $10. Other operators have introduced specialized features and offers. BetMGM has launched ‘BetDefense’, which provides a cash stake refund if a named player is injured in the first quarter, and ‘Ultimate Teams’, a free-to-play game with a weekly $50,000 bonus bets jackpot. Additionally, Caesars Sportsbook is promoting a double-winnings offer for new customers, Onyx Odds is providing $50 in bonus picks upon a $10 spend, and Fanatics Markets is offering up to $350 in FanCash through daily trade matches. BetMGM Casino is also promoting NFL-themed slot games with no-deposit and deposit-match bonuses in certain jurisdictions. ## Claims - theScore Bet offers new users a $1,000 bet reset welcome offer using the promo code BROAD. (single source) - theScore Bet refunds first-time losing cash wagers in bonus bets up to $1,000. (single source) - theScore Bet refunds are distributed as five separate bonus bets, each worth 20% of the original wager. (single source) - Novig offers a welcome bonus where users receive $25 in trade credits upon a $10 deposit using code ELITE. (single source) - Polymarket provides a $20 bonus in trading funds for first-time US users who deposit at least $10 using code MASS. (single source) ## Timeline ### 2026-09-11: Sports betting platforms launch new promotions for football season Sports betting platforms including Polymarket, BetMGM, and Caesars are launching new promotions and features to coincide with the start of the NFL and college football seasons. 12 sources. https://clstr.news/cluster/betmgm-and-polymarket-launch-new-us-promotional-offers ### 2026-08-31: Sports betting platforms launch various promotional offers for MLB and NFL Multiple sports betting and prediction platforms, including Polymarket, BetMGM, and FanDuel, are offering various sign-up bonuses and promotional credits for MLB, NFL, and college football markets. 10 sources. https://clstr.news/cluster/thescore-bet-novig-and-polymarket-announce-new-sports-betting-promotions ### 2026-08-28: BetMGM offers sportsbook and casino bonuses for US customers BetMGM is offering new US customers various welcome bonuses, including up to $1,500 in sportsbook bonus bets and a $1,000 casino deposit match. 3 sources. https://clstr.news/cluster/betmgm-offers-sportsbook-and-casino-bonuses-for-us-customers ### 2026-08-22: Bet365 and BetMGM offer promotional bonuses for MLB games Bet365 and BetMGM are offering various promotional bonuses and sign-up incentives for new users betting on MLB games. 4 sources. https://clstr.news/cluster/bet365-and-betmgm-offer-promotional-bonuses-for-mlb-games ### 2026-08-18: MLB matchups highlighted alongside new sports betting promotions MLB matchups like the Dodgers vs. Rockies are featured alongside new user betting promotions from Novig and Underdog for upcoming baseball games. 3 sources. https://clstr.news/cluster/mlb-matchups-highlighted-alongside-new-sports-betting-promotions ### 2026-08-17: Bet365 and OG announce new sports betting promotional offers Bet365 and OG are offering promotional bonuses for new users, including $150 in bonus bets for MLB via bet365 and trading incentives through the OG app. 2 sources. https://clstr.news/cluster/bet365-and-og-announce-new-sports-betting-promotional-offers ### 2026-08-13: Sports news covers NFL predictions and betting promotions Sports news covers 2026 NFL season predictions and various promotional offers for MLB, NFL preseason, and UFC 330 betting and prediction markets. 5 sources. https://clstr.news/cluster/sports-betting-platforms-launch-promotions-for-mlb-and-nfl-preseason ### 2026-08-09: DraftKings Predictions launches new customer promotional offer DraftKings Predictions is offering new customers up to $150 in non-withdrawable site credits following an initial event-contract trade of $5 or more. 2 sources. https://clstr.news/cluster/draftkings-predictions-launches-new-customer-promotional-offer ### 2026-08-06: DraftKings and Underdog Launch MLB Betting Bonus Promotions DraftKings and Underdog each offer new‑user MLB betting bonuses—$150 for a $5 wager on DraftKings and $50 bonus entries for a $5 bet on Underdog. 3 sources. https://clstr.news/cluster/draftkings-and-underdog-launch-mlb-betting-bonus-promotions ### 2026-08-04: US Sports Betting Platforms Offer MLB Promo Bonuses in August 2026 US betting sites BetMGM, Bet365, DraftKings and Polymarket rolled out MLB promo codes in early August 2026, offering bonuses from $20 to $1,500 depending on state and deposit. 11 sources. https://clstr.news/cluster/draftkings-offers-150-instant-bonus-for-mlb-games ### 2026-08-02: Betr Launches $200 MLB Bonus Amid Fantasy Reliever Rankings Betr offers a $200 MLB bonus for new users while a fantasy baseball guide releases daily reliever streamer rankings and roster updates for MLB teams. 2 sources. https://clstr.news/cluster/betr-launches-200-mlb-bonus-amid-fantasy-reliever-rankings ### 2026-07-23: MLB Betting Sites Launch New User Bonuses Up to $1500 DraftKings, theScore Bet and Splash each rolled out new MLB betting promos, offering up to $150 bonus bets, a $1,000 bet reset and a 50% deposit match up to $500 for new users. 3 sources. https://clstr.news/cluster/chalkboard-and-boom-dailyfantasy-baseball-promos-offer-free-lineups-for-diamondbackscardinals-game ### 2026-07-21: MLB Daily Fantasy Sites Launch New Bonus Promotions Underdog and Chalkboard Daily Fantasy launch July 21 promotions for new MLB users, offering $50 bonus entries and up to $100 bonus plus a free pick, respectively. 3 sources. https://clstr.news/cluster/mlb-daily-fantasy-sites-launch-new-bonus-promotions ### 2026-07-06: US Sports Betting Platforms Offer New Player Bonuses DraftKings and Boom each launch new‑user bonuses—$200 extra wagers and $40 free fantasy lineups respectively—targeting U.S. sports bettors. 2 sources. https://clstr.news/cluster/us-sports-betting-platforms-offer-new-player-bonuses --- Cite as: US MLB, NFL & College Football betting & promo trends. CLSTR, https://clstr.news/situations/us-sports-betting-bonus-promotions