Updated August 19, 2026 · by Jake Hari
Most Week 1 lines have spent the summer sitting still. This one walked. The opener called Dolphins at Raiders a field-goal game, and over the summer the look-ahead consensus crept past 3, the most expensive half point in football. That step is the whole story of this page: what the sportsbooks and the Kalshi exchange each say about the same game in the same desert, and further down, which of the two venues is actually charging less to bet it.
The Quick Answer
The Raiders are home favorites over the Dolphins in Week 1, Sunday, September 13 at Allegiant Stadium. Kalshi traders price Las Vegas at 65 cents on the dollar, which reads directly as a 65 percent chance to win, with Miami at 35. The mid-May opener was Raiders -3 with a total of 41.5, and the early consensus number has since drifted to -3.5, across the most important number in football. The full price comparison, the venue that quotes this game tighter, and the half point worth watching are below.
The Game
| Matchup | Miami Dolphins at Las Vegas Raiders, NFL Week 1 |
| Kickoff | Sunday, September 13, 2026, 4:25 p.m. ET |
| Where | Allegiant Stadium, Las Vegas (indoors) |
| Early Consensus Line | Raiders -3.5, total 40.5 (the look-ahead consensus; it will move, check the live screen for the current number) |
| The Opener | Raiders -3, total 41.5, at a moneyline of LV -175 / MIA +145 (mid-May) |
Our NFL Week 1 odds board flagged this as one of five opening-week games sitting on or against a key number, the games where a half point converts directly into equity rather than decoration. Since that capture, this one made the move that matters: from -3 on the number to -3.5 past it. The rest of the opening board is over there; this page stays on the one game in Las Vegas.
Kalshi Prices Vs The Sportsbook Line
Two markets price this same game, and they express it differently. Sportsbooks quote a moneyline and a spread. Kalshi, a federally regulated exchange, trades a winner contract on each team priced in cents, and because every contract settles at exactly one dollar if that team wins, the price is the probability. A 65-cent Raiders contract is the market saying 65 percent. If cents-as-probability is new to you, how Kalshi odds work covers the mechanics.
Here is where both venues stood at the latest refresh.
| Market | Raiders | Dolphins |
|---|---|---|
| Kalshi, Last Trade | 65¢ | 35¢ |
| Kalshi, Bid / Ask | 64¢ / 65¢ | 34¢ / 35¢ |
| Sportsbook Moneyline (mid-May Opener) | -175 (63.6% implied) | +145 (40.8% implied) |
| Sportsbook Spread (mid-May Opener) | -3 | +3 |
| Freshest Book Price On Our Screen (Aug 19) | see the live screen | +180 (DraftKings) |
Kalshi prices as of August 19, 2026, from the Miami vs Las Vegas winner market (KXNFLGAME-26SEP13MIALV), where more than 33,000 contracts have traded. Sportsbook openers are the mid-May consensus and are shown as the baseline, not the current price; the live number sits on the odds screen.
The drift shows up on both sides of the table, and it all points the same direction. The opener implied about 63.6 percent for Las Vegas with the vig still included; Kalshi now trades the Raiders at 65 cents. Miami has traveled further: the +145 opener implied about 40.8 percent, the exchange now says 35, and the freshest sportsbook read on our screen agrees, with DraftKings hanging Miami at +180. OddsShopper's de-vigged model grades that +180 as essentially on-market: its output puts Miami's true probability just under 34 percent, which leaves about a point of negative expected value at the posted number. A summer with no football in it took Miami from roughly four-in-ten to barely better than one-in-three, at both venues at once.
That is what makes the half point interesting. A moneyline can firm a long way before a book will pay the toll of moving its spread through 3, because more NFL games land on 3 than any other margin. Here the look-ahead consensus paid it, stepping from -3 to -3.5. Individual books will straddle a move like that at any given hour, some at -3, some at -3.5, and that straddle is the actionable part: a consensus that crosses the most defended number on the board during the offseason, with no injuries or film forcing its hand, is a market telling you how firmly it has picked a side, and a split board around 3 is where shopping the number pays most.
Which Venue Is Cheaper To Bet
Here is the part a normal odds page will not show you, because it takes both markets on one screen to see it.
At the latest read, buying the Raiders at 65 cents and the Dolphins at 35 cents on Kalshi costs exactly 100 cents for a pair of contracts that settles at exactly 100. At that snapshot, before Kalshi's per-contract trading fee, the buy-both-sides overround, the number a sportsbook's vig maps to, was zero, even with a one-cent bid-ask gap quoted on each contract. The books were not competing with that: the odds screen computes hold from both sides of each book's posted pair, and its latest two-sided read on the DraftKings moneyline for this game came to roughly 4.3 percent. Our Kalshi vs DraftKings comparison found the same pattern across markets, and removing the vig walks through the arithmetic if you want to run it yourself.
Two cautions before anyone treats that as a verdict. Cheaper is a statement about the venue, not the bet: a zero-cent spread on a fairly priced game still has no edge in it, and the de-vigged read on Miami +180 says this game is currently priced about right everywhere. And the comparison only holds at the prices actually posted, which move. As we covered in Kalshi NFL futures vs sportsbooks, sometimes the exchange has the better number, sometimes a book does, and the only way to know is to look at both at the moment you bet.
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What To Watch Before Kickoff
The market has already made its big statement on this game. What is left to watch is whether September gives anyone a reason to walk it back.
The road back to 3. The number that crossed a key number can cross it again. If you end up on Miami, the difference between +3.5 and +3 is the difference between winning and refunding the single most common margin in football, so +3.5 is the asset worth protecting; the craft rule, favorites early in the week, dogs later, argues for patience on the dog side anyway. If you end up on Las Vegas, the question inverts: does any buyback ever put -3 back on a shelf near you? Staying on the right side of the game's most important number is the entire craft here, the same case we built walking through a three-leg NFL teaser on an Eytan's Essentials first look on the OddsShopper channel, and our NFL key numbers guide covers why the half point around 3 is worth more than any other on the board.
A 40.5 total with no weather excuse. The early consensus total drifted down from 41.5 to 40.5, and Allegiant Stadium is indoors, so this is not a wind discount. A dome game priced this low is the market making a statement about the two offenses, not the conditions. Run the arithmetic on -3.5 and 40.5 and the implied team totals land near 22 for Las Vegas and 18.5 for Miami. That 18.5 is the quiet headline: the market expects the Dolphins to struggle to score three touchdowns in a building with no weather in it.
The late-window trip west. Miami opens its season with a cross-country road game in the 4:25 p.m. ET window, the kind of structural spot the market prices in before either roster takes a snap. That is part of why the summer money moved the way it did, and it is worth remembering the flip side: a number that already charges for the travel spot has already spent that argument. Whatever September's injury reports and depth charts add, they will be new information; the geography is not.
The casual-money lean. Opening Sunday attracts the most recreational betting volume of the year, and recreational money historically leans hard to favorites and overs. Both of those leans point at the same tickets here, Raiders and over, on a game where the favorite already got more expensive all summer and the total already fell a point. Books know where that money lands and shade those sides accordingly, which is one more reason the patient read on this page is to let the number come to you rather than pay opening day's premium for it.
Season-long context for both teams lives in our Dolphins win total and Raiders win total breakdowns, both of which trade on Kalshi as well.
How To Actually Get The Best Of This Line
Everything above reduces to one behavior. Between now and September 13, this game will be priced at a dozen sportsbooks and on an exchange, and those prices will not agree. The bettors who do well on games like this are not the ones who out-predict a Week 1 line; they are the ones who consistently take the best number posted anywhere for the side they want, which is the idea behind closing line value. The live odds screen exists for exactly this: shop the number across every major book, next to the fair de-vigged price, and know in one look whether your book is the one out of line. On this game the screen's latest read graded the steepest Miami price, that DraftKings +180, at just below fair, and the exchange's two-sided quote at a cent or less of width. When both venues price a game that tightly, the number you take is the edge. Our free expert picks surface the spots where a real number does come loose as kickoff approaches.
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The Bottom Line
The opener said Raiders by a field goal. The summer said more: the moneyline stretched from -175 implied toward a 65-cent Kalshi contract, Miami lengthened from +145 to +180 at the steepest posted book, and the spread paid the toll to cross 3, the number every book defends hardest. A market that moves its spread through the most important number in football without a single September snap is a market that has made up its mind about the Raiders at home, and it is charging accordingly, at a venue spread of roughly zero on the exchange. Until real information arrives, the play on this page is not a side. It is knowing that the field-goal line this game opened with is gone, and being ready to take the better number, at whichever venue posts it, the moment you have a reason to.
Frequently Asked Questions
What are the odds for Dolphins vs Raiders in Week 1? The mid-May opener was Raiders -3 with a total of 41.5, at a moneyline of Las Vegas -175 and Miami +145. The early consensus number has since moved to Raiders -3.5 with a total of 40.5, and Kalshi's winner market traded Las Vegas at 65 cents and Miami at 35 as of the August 19 refresh. Lines move continuously through kickoff, so check the live odds screen for the current number.
What do Kalshi's cent prices mean? Each Kalshi contract pays exactly one dollar if the team it covers wins. So a price in cents reads directly as the market's win probability: Raiders at 65 cents means traders collectively price Las Vegas at about a 65 percent chance. There is no separate vig line; the exchange's cost lives in the gap between the buy and sell price, plus a small per-trade fee.
Why are Kalshi prices different from sportsbook odds? They are set by different money. Sportsbooks post a line and build their margin into the odds; Kalshi prices float wherever buyers and sellers meet, usually with a tighter built-in cost. On this game the difference was visible at the latest read: buying both sides of the Kalshi winner market at the ask cost exactly 100 cents against a 100-cent settlement, while the odds screen's two-sided read on the DraftKings moneyline came to roughly 4.3 percent of hold. When the venues disagree on a side, one of them is offering the better price, and that disagreement is the entire reason to look at both.
What time is Dolphins vs Raiders and where is it played? Sunday, September 13, 2026, at 4:25 p.m. ET, at Allegiant Stadium in Las Vegas, in the late-afternoon Week 1 window.
Does this page update? Yes. The Kalshi prices and market read here are refreshed regularly through kickoff, and each table is stamped with its as-of date. Sportsbook openers are shown as the historical baseline; the current line always lives on the live odds screen.
- Eligibility. Kalshi is a CFTC-regulated event-contract exchange, not a sportsbook. 18+, and availability varies by state as of August 2026.
- Not Advice. De-vigged probabilities and expected win rates on this page are model estimates, not predictions of fact and not financial advice. Prices move; verify the live number before betting.
