Kalshi and Polymarket “sign-up codes” update $55+ NFL Week 2 bonuses

Polymarket and Kalshi, the two largest prediction markets in the United States, have both updated their verified sign-up codes for NFL Week 2 Sunday games, a 14-game slate that sends the Browns to Tampa Bay and the Bengals to Houston in the 1 p.m. EDT window and ends with the Colts at the Chiefs on Sunday Night Football—and Kalshi’s update is a genuine upgrade. As of Sunday, September 20, 2026, the new Kalshi code CLEVELAND55 carries a limited-time $55 bonus on a $25 deposit, for $80 total to trade, more than double Kalshi’s standard $25 match. Every Polymarket promo code and referral code carries a $50 bonus on a $10 deposit, for $60 total. The verified Polymarket codes are CUSE, SILIVE, OREGON, MASS, and CLEVE. The verified Kalshi codes are CLEVELAND55, SILIVE55, OREGONLIVE55 at the upgraded $55, and SYRACUSE and MASSLIVE1 at the standard $25. All are confirmed active for new US accounts only, and Kalshi has not announced how long the $55 figure will run.Both Ohio teams go in as road underdogs—the Browns at roughly one in five and the Bengals at two in five—and every one of Sunday’s 14 games is already priced on both platforms, with spreads and totals alongside each winner market. Any verified Polymarket promo code or Kalshi promo code funds an account in minutes, for prediction market traders where each platform is available.Any one code per platform is all you need. If you see a Polymarket promo code, a Polymarket referral code, or a Kalshi code that is not on this list, confirm it before using it—unverified codes may be expired or may not carry the current offer.Here is the full list of verified codes, verified as active as of Sunday, September 20, 2026, and available through the week:PlatformVerified codesNew-user offerPolymarketCUSE, SILIVE, OREGON, MASS, CLEVE$50 bonus on a $10 deposit ($60 total to trade)Kalshi (upgraded, limited time)CLEVELAND55, SILIVE55, OREGONLIVE55Deposit $25, get $55 ($80 total to trade)Kalshi (standard)SYRACUSE, MASSLIVE1Deposit $25, get $25 ($50 total to trade)This Polymarket Referral Code secures a $50 cash trading bonus in three simple steps.Polymarket Code.What is the Polymarket referral code and promo code?The Polymarket referral code—also labeled a Polymarket promo code—is a sign-up code that unlocks a $50 bonus on a first deposit of $10, for $60 in total trading funds. Five Polymarket codes are verified and active as of September 20, 2026: CUSE, SILIVE, OREGON, MASS, and CLEVE. Each works identically—enter any one in the promo or referral field at sign-up, and the bonus is credited the moment your deposit clears. Polymarket issues a single string per account across every label, so a Polymarket promo code and a Polymarket referral code are the same thing. (Older coverage sometimes called this a Polymarket invite code; the platform has moved away from that label.)This nationwide Kalshi Code secures a huge promo in eligible trading states nationwide. Review the Kalshi Referral Code's updated terms and conditions for 2026.Kalshi.What is the Kalshi referral code and promo code?The Kalshi referral code—also labeled a Kalshi promo code—is a sign-up code that unlocks a deposit bonus on a new account. Five Kalshi codes are verified and active as of September 20, 2026. Three of them—CLEVELAND55, SILIVE55, and OREGONLIVE55—currently carry a limited-time upgrade: deposit $25, get $55, for $80 in total trading funds. The other two, SYRACUSE and MASSLIVE1, carry Kalshi’s standard flat 1:1 match: deposit $25, get $25, for $50 total. As on Polymarket, each Kalshi promo code also works as a Kalshi referral code—one string, entered once at registration, unlocks the bonus, with no minimum trade count and no qualifying window. For Cleveland.com readers, CLEVELAND55 is the code to use while the $55 is live.How to use a Polymarket or Kalshi promo code:On Polymarket (using the Polymarket promo code CLEVE as an example):Go to Polymarket.com or download the Polymarket app.Create a new US account and enter a Polymarket code—CUSE, SILIVE, OREGON, MASS, or CLEVE—in the promo or referral field.Complete identity verification.Deposit $10—your $50 bonus is credited, for $60 total to trade.On Kalshi (using the upgraded Kalshi promo code CLEVELAND55 as an example):Go to Kalshi.com or open the Kalshi app.Sign up and enter a Kalshi code—CLEVELAND55, SILIVE55 or OREGONLIVE55 for the $55 bonus, or SYRACUSE or MASSLIVE1 for the standard $25—in the promo or referral field.Verify your identity to activate the account.Deposit $25—your bonus is credited, for $80 total to trade with CLEVELAND55.Browns and Bengals odds on Polymarket and Kalshi:Both Ohio teams play in the 1 p.m. EDT window, and both platforms price them as road underdogs. Polymarket shows the winner as a chance with a payout multiple; Kalshi shows a chance with the same multiple and adds spread and total markets on each game. Here is how each looks as of September 20, 2026:Game (1 p.m. ET)Polymarket—to winKalshi—to winBrowns at BuccaneersTB 80% (1.26x) · CLE 21% (4.76x)TB 80% (1.23x) · CLE 22% (4.31x)Bengals at TexansHOU 60% (1.67x) · CIN 40% (2.47x)HOU 60% (1.62x) · CIN 41% (2.34x)The two platforms are within a point on both Ohio games. Cleveland is the longer shot at 21% on Polymarket and 22% on Kalshi, with a Browns contract paying 4.76x on Polymarket against 4.31x on Kalshi—a half-point-of-payout gap that favors Polymarket for anyone backing the upset. Cincinnati is the closer market at 40–41%, where the payout is 2.47x on Polymarket and 2.34x on Kalshi. Kalshi has $43,813 traded on the Browns game and $54,086 on the Bengals, with the spread and total markets on each open alongside the winner.NFL Week 2 Sunday odds on Polymarket and Kalshi: the full slateHere are all 14 Sunday games with each platform’s winner price, grouped by kickoff window:Game (kickoff ET)Polymarket—to winKalshi—to winEagles vs. Titans (1:00)PHI 76% (1.31x) · TEN 24% (4.17x)PHI 75% (1.29x) · TEN 25% (3.80x)Steelers vs. Patriots (1:00)NE 68% (1.46x) · PIT 32% (3.13x)NE 68% (1.42x) · PIT 32% (2.98x)Vikings vs. Bears (1:00)CHI 69% (1.45x) · MIN 32% (3.17x)CHI 70% (1.40x) · MIN 31% (3.08x)Panthers vs. Falcons (1:00)CAR 53% (1.89x) · ATL 48% (2.11x)CAR 53% (1.83x) · ATL 47% (2.05x)Packers vs. Jets (1:00)GB 64% (1.55x) · NYJ 36% (2.78x)GB 65% (1.50x) · NYJ 37% (2.59x)Saints vs. Ravens (1:00)BAL 79% (1.27x) · NO 22% (4.65x)BAL 80% (1.23x) · NO 22% (4.31x)Bengals vs. Texans (1:00)HOU 60% (1.67x) · CIN 40% (2.47x)HOU 60% (1.62x) · CIN 41% (2.34x)Browns vs. Buccaneers (1:00)TB 80% (1.26x) · CLE 21% (4.76x)TB 80% (1.23x) · CLE 22% (4.31x)Jaguars vs. Broncos (4:05)DEN 58% (1.71x) · JAX 42% (2.38x)DEN 52% (1.90x) · JAX 51% (1.90x)Raiders vs. Chargers (4:05)LAC 74% (1.36x) · LV 27% (3.7x)LAC 74% (1.33x) · LV 27% (3.52x)Seahawks vs. Cardinals (4:25)SEA 66% (1.5x) · ARI 34% (2.94x)SEA 67% (1.46x) · ARI 34% (2.81x)Dolphins vs. 49ers (4:25)SF 89% (1.12x) · MIA 12% (8.7x)SF 89% (1.12x) · MIA 12% (7.85x)Commanders vs. Cowboys (4:25)DAL 66% (1.53x) · WAS 35% (2.86x)DAL 66% (1.48x) · WAS 36% (2.66x)Colts vs. Chiefs (8:20, SNF)KC 74% (1.36x) · IND 28% (3.51x)KC 73% (1.34x) · IND 29% (3.29x)The two operators agree to within a point on 13 of the 14 winners. The exception is Jaguars vs. Broncos, where Polymarket has moved to 58% for Denver after a four-point climb this week while Kalshi still prices the game as a coin flip at 1.90x either way—the one Sunday market where holding both accounts pays off directly. Panthers vs. Falcons at 53–47 is the closest game on both boards, the 49ers at 89% are the shortest price of the day, and the Browns, Saints and Titans all pay better than 4x on Polymarket as road underdogs.Kalshi offers a wide range of odds and prices for the NFL season, including NFL Champion odds.Kalshi referral codeFeatured Sunday spreads and totals on Polymarket:GamePolymarket spreadPolymarket totalEagles vs. TitansPHI by over 7.5: 48%Over 39.5: 50%Steelers vs. PatriotsNE by over 5.5: 49%Over 41.5: 50%Packers vs. JetsGB by over 3.5: 48%Over 44.5: 51%Jaguars vs. BroncosDEN by over 2.5: 53%Over 44.5: 52%Seahawks vs. CardinalsSEA by over 3.5: 52%Over 41.5: 48%Colts vs. ChiefsKC by over 6.5: 52%Over 46.5: 50%Every featured spread sits within three cents of even, and the Eagles, Patriots and Packers are all priced below 50% to cover. The Chiefs’ 46.5 total has fallen four points in the past day, the largest move on a Sunday total, and the Seahawks vs. Cardinals 41.5 is tied for the lowest number of the week. A Polymarket promo code or Kalshi promo code puts bonus funds on either side of any of these.Polymarket and Kalshi odds reflect live trading and update in real time. All prices current as of Sunday, September 20, 2026.Polymarket and Kalshi for NFL Week 2 Sunday games:A 14-game Sunday with both Ohio teams on the road is the busiest single day of the week for US prediction market users, and both Polymarket and Kalshi have updated verified codes to it. The Browns and Bengals are both underdogs, but underdog boards still leave value in the derivative markets—whether you back Cleveland at 4.76x, take the Bengals at 2.47x or trade a spread priced within a cent of even, a verified code lowers the cost of getting in. A verified Polymarket promo code or Kalshi promo code lands the bonus the moment your deposit clears, in time for the 1 p.m. EDT kickoffs.Polymarket vs. Kalshi: promo and referral codes compared:Both platforms are US-legal prediction markets running new-user code offers. Here is how the Polymarket and Kalshi codes compare:PolymarketKalshiVerified codesCUSE, SILIVE, OREGON, MASS, CLEVECLEVELAND55, SILIVE55, OREGONLIVE55 (upgraded); SYRACUSE, MASSLIVE1 (standard)Bonus$50 on a $10 deposit ($60 total)$55 on a $25 deposit ($80 total), limited time; $25 on $25 ($50 total) standardPlatform typePeer-to-peer prediction marketCFTC-regulated exchangePrices set byTrader supply and demandTrader limit orders (order book)The difference comes down to mechanics and, this weekend, to the size of the bonus. Polymarket’s peer-to-peer structure means prices move on trader sentiment, which is why Denver has already been bid up to 58% there while Kalshi’s order book still has the Jaguars game at a coin flip; its $50 arrives on a $10 deposit, the lowest entry cost of the two. Kalshi runs as a CFTC-regulated exchange with an order book, carries a spread and total on every one of the 14 Sunday games, has volume that runs to $195,038 on Eagles vs. Titans, and—with CLEVELAND55—now pays the larger bonus in absolute terms at $55, for a limited time. Many traders open both, using a Polymarket promo code and a Kalshi promo code, to compare Polymarket odds against Kalshi odds before committing funds; the six-point gap on the Broncos this week is exactly why.Do the Polymarket and Kalshi codes work as referral codes?Yes. On both platforms the same string works as a promo code or a referral code—there is no separate code for each label. The Polymarket referral codes are the same five strings as the promo codes: CUSE, SILIVE, OREGON, MASS, and CLEVE. The Kalshi referral codes are CLEVELAND55, SILIVE55, OREGONLIVE55, SYRACUSE, and MASSLIVE1. Whichever field it lands in at sign-up, entering a verified code unlocks the same bonus—$60 total on Polymarket, $80 total on Kalshi with one of the three upgraded codes, and $50 total with a standard one.Are Polymarket and Kalshi legal in the US?Yes. Kalshi is a CFTC-regulated prediction market exchange available in eligible states, and Polymarket is a prediction market open to US users. Neither is a sportsbook. Instead of a house setting lines, you buy and sell contracts on event outcomes for a price between $0.01 and $0.99, and the market price reflects the probability of each outcome—which is why Sunday’s games are quoted in cents and percentages. That structure is why both platforms are accessible in many states where traditional online sports betting is not, and why a Polymarket promo code or Kalshi promo code is open to most new US users.All verified Polymarket and Kalshi codes for NFL Week 2 Sunday games:To recap, all ten codes are confirmed active as of September 20, 2026. The five Polymarket codes—CUSE, SILIVE, OREGON, MASS, and CLEVE—each unlock $50 on a $10 deposit, for $60 to trade. Three Kalshi codes—CLEVELAND55, SILIVE55, and OREGONLIVE55—unlock a limited-time $55 bonus on a $25 deposit, for $80 to trade; the other two, SYRACUSE and MASSLIVE1, unlock the standard 1:1 match, deposit $25, get $25, for $50 to trade. Every Polymarket promo code, referral code, and Kalshi code is verified for new US accounts and applies across the platform, including all 14 Sunday games, Monday’s Giants vs. Rams and the rest of the NFL season.Conclusion: The verified Polymarket and Kalshi promo codes are upgraded for NFL Week 2 Sunday games:Polymarket and Kalshi have both updated their verified promo and referral codes for NFL Week 2 Sunday games, and Kalshi’s is the upgrade of the weekend: $80 in trading funds on a $25 deposit with CLEVELAND55, for a limited time, alongside Polymarket’s $60 on a $10 deposit with CLEVE. The verified Polymarket codes are CUSE, SILIVE, OREGON, MASS, and CLEVE; the verified Kalshi codes are CLEVELAND55, SILIVE55, OREGONLIVE55, SYRACUSE, and MASSLIVE1. With the Browns and Bengals both kicking off at 1 p.m. EDT and the Chiefs closing the day on Sunday Night Football, there is little reason to wait—a verified code lands the bonus the moment your deposit clears, and the $55 will not be there indefinitely.Kalshi Disclaimer: Must be 18 years or older and have a legal, U.S. residential address within the applicable state, D.C., or U.S. territories. Not available in AZ, IL, MA, MD, MI, MT, NJ, and OH. Deposit $25 and receive a $55 bonus in trading funds for a limited time with CLEVELAND55, SILIVE55 or OREGONLIVE55; bonus funds must be traded before any resulting funds can be withdrawn. Event contracts trading involves risk of substantial loss and is not suitable for all investors. Prediction markets content is not intended for individuals located in jurisdictions where they are prohibited.Polymarket Disclaimer: Must be 18 years or older and have a legal, U.S. residential address within the applicable state, D.C., or U.S. territories. Polymarket is a prediction market platform. Trading involves risk. Only participate where legally permitted and never trade more than you can afford to lose.Kalshi referral code “CLEVELAND55”: New $55 bonus extended to Browns vs. BucsExperts update Bengals vs. Texans prediction with kickoff just hours awayExperts release updated Browns vs. Bucs predictions following Tyson Campbell ankle updatePolymarket referral code “CLEVE” updates $50 bonus in OH for CFB Week 3 late night slateKalshi launches $55 promo code “CLEVELAND55” for LSU vs. Ole MissIf you purchase a product or register for an account through a link on our site, we may receive compensation. By using this site, you consent to our User Agreement and agree that your clicks, interactions, and personal information may be collected, recorded, and/or stored by us and social media and other third-party partners in accordance with our Privacy Policy.