NFL Week 1 2026 Preview: Key Matchups and Odds Across Every Venue
Sixteen NFL games open the 2026 season, and the whole board is quoted on public order books rather than posted by a risk desk. Across all sixteen, the two moneyline sides sum to an average of 101.3%. A sportsbook's standard -110 both ways sums to 104.8%.
That is the difference, and there is $158.7 million of resting orders behind it.
What follows is the full slate with its lines, the cost of a two-way market at each venue, and five games looked at closely. Every price here comes from the live books at 19:09 UTC on September 9, 2026, captured in a single pass. They have moved since. The method is the part worth keeping.
The full Week 1 board
Every game, in kickoff order. Spread, total and moneyline are the network's blended read across every venue quoting the game, not any one book's posted number. The spread is shown from the home team's side, so -3 means the home team is favored by three. "Two-side sum" adds the two moneyline probabilities together, where 100% would be a perfectly fair market with no margin at all. Compare that last column to 104.8%, which is what a sportsbook charges for the same pair.
| Kickoff (ET) | Matchup | Spread (home) | Total | Moneyline | Two-side sum |
|---|---|---|---|---|---|
| Wed 8:20 PM | Patriots at Seahawks | -3 | 44 | +157 / -163 | 100.9% |
| Thu 8:35 PM | 49ers at Rams | -4 | 48.5 | +176 / -191 | 101.8% |
| Sun 1:00 PM | Buccaneers at Bengals | -3.5 | 50 | +180 / -185 | 100.6% |
| Sun 1:00 PM | Bears at Panthers | +3 | 47 | -158 / +145 | 102.0% |
| Sun 1:00 PM | Browns at Jaguars | -9 | 41 | +347 / -379 | 101.5% |
| Sun 1:00 PM | Falcons at Steelers | -3.5 | 42 | +167 / -174 | 100.9% |
| Sun 1:00 PM | Ravens at Colts | +3 | 48 | -162 / +156 | 100.8% |
| Sun 1:00 PM | Bills at Texans | +1 | 45 | -110 / +106 | 101.0% |
| Sun 1:00 PM | Saints at Lions | -7 | 50 | +278 / -298 | 101.3% |
| Sun 1:00 PM | Jets at Titans | -1 | 39 | +106 / -114 | 101.7% |
| Sun 4:25 PM | Commanders at Eagles | -5 | 44.5 | +207 / -219 | 101.3% |
| Sun 4:25 PM | Cardinals at Chargers | -9 | 47.5 | +414 / -434 | 100.7% |
| Sun 4:25 PM | Dolphins at Raiders | -3.5 | 41.5 | +163 / -173 | 101.4% |
| Sun 4:25 PM | Packers at Vikings | -2 | 46.5 | +112 / -119 | 101.5% |
| Sun 8:20 PM | Cowboys at Giants | +3 | 48 | -154 / +142 | 101.8% |
| Mon 8:15 PM | Broncos at Chiefs | -2.5 | 43.5 | +127 / -132 | 101.1% |
What a two-way market costs here
The cleanest way to compare a prediction market to a sportsbook is to ask what it costs to buy both sides of the same game. At a book pricing a spread at -110 each way, the two sides sum to 104.8%. That 4.8 points is the house margin, and it is the number you are paying whether you notice it or not.
On this network the same question has a very different answer. Here is what buying both moneyline sides costs at each venue that quotes the full Week 1 slate, at screen prices.
| Venue | Two-side cost, typical | Games quoted |
|---|---|---|
| Polymarket US | 100.50% | 16 |
| ProphetX | 100.82% | 16 |
| Kalshi | 101.00% | 16 |
| Polymarket | 101.00% | 15 |
| 4Casters | 101.27% | 16 |
| A sportsbook at -110 both ways | 104.76% | n/a |
Every venue on the board prices a two-way NFL market between 100.5% and 101.3%. The worst of them is three and a half points cheaper than the sportsbook standard, and the best is more than four. On a $10,000 position that difference is the whole argument.
It is worth being precise about what that margin is and is not. It is not a fee. Nobody is charging it. It is the gap between the best offer on one side and the best offer on the other, which exists because two traders have to meet somewhere. A sportsbook's 4.8 points is a price it sets and keeps. These 0.5 to 1.3 points are what is left when the market sets the price instead.
The money behind the prices
A tight quote means nothing if there is nothing behind it, which is the usual objection to prediction markets and the reason the liquidity number matters more than the price. Week 1 moneylines alone carry $158.7 million in resting orders.
| Venue | Resting orders, Week 1 moneylines | Share |
|---|---|---|
| Kalshi | $143.9M | 90.7% |
| Polymarket US | $6.6M | 4.2% |
| Polymarket | $6.2M | 3.9% |
| 4Casters | $1.4M | 0.9% |
| ProphetX | $0.5M | 0.3% |
| AlphaArcade, BettorEdge, BetOpenly | under $15k combined | 0.01% |
Two things follow from that shape. The first is that the depth is real: $158.7 million is not a screen full of hopeful quotes, and the biggest games carry eight-figure books on a single market. The second is that it is extremely concentrated. Kalshi holds nine dollars in every ten, and the venue with the sharpest two-way price on the board, Polymarket US, holds 4.2%.
Two games hold nearly half the week. Patriots at Seahawks ($43.5M) and 49ers at Rams ($32.4M) account for 47.8% of all Week 1 moneyline liquidity. They are the two standalone national windows. Every Sunday game sits between $4.9M and $6.7M, a remarkably flat distribution that suggests the money is following the broadcast rather than the matchup.
Five games worth watching
For each of these, the price every venue is showing on both sides, and how much is actually resting on that game at that venue. The best price on each side is marked in green. Prices are screen prices, so read the depth column alongside them: a good number on a thin book is a different proposition from the same number on a deep one.
New England Patriots at Seattle Seahawks
Wednesday, September 9, 8:20 PM ET, Lumen Field, NBC and Peacock. Seahawks -3, total 44.
Seattle beat New England 29-13 in Super Bowl LX in February, sacking Drake Maye six times and forcing three turnovers on the way to Kenneth Walker III taking MVP. Seven months later the market has the same two teams inside a field goal of each other, which tells you the result was read as a defensive performance rather than a gap in quality.
This is the deepest book of the week at $43.5 million and the tightest priced at a 100.9% sum.
| Venue | New England | Seattle | Resting book |
|---|---|---|---|
| Kalshi | +156 | -163 | $37.8M |
| Polymarket US | +156 | -160 | $3.1M |
| Polymarket | +156 | -163 | $2.3M |
| 4Casters | +159 | -161 | $295k |
| ProphetX | +158 | -162 | $77k |
The five venues sit within half a cent of each other on both sides, which is about as tightly as this board ever agrees. Kalshi holds 87% of the money on this game and is not the best price on either side, and that is the recurring shape here: the deepest book is rarely the sharpest quote.
San Francisco 49ers at Los Angeles Rams
Thursday, September 10, 8:35 PM ET, Melbourne Cricket Ground, Netflix. Rams -4, total 48.5.
The first NFL regular-season game played in Australia, and the only Week 1 game behind a streaming exclusive. It carries the second-largest book of the week at $32.4 million.
| Venue | San Francisco | Los Angeles | Resting book |
|---|---|---|---|
| Kalshi | +178 | -186 | $30.5M |
| Polymarket US | +182 | -186 | $825k |
| Polymarket | +178 | -186 | $803k |
| 4Casters | +179 | -186 | $145k |
| ProphetX | +182 | -186 | $40k |
All five venues quote the Rams at -186. The disagreement is entirely on San Francisco, and even there it is only half a cent, or four points of American odds. On a game carrying $32 million this is what consensus looks like.
Buffalo Bills at Houston Texans
Sunday, September 13, 1:00 PM ET, CBS. Texans +1, total 45.
The closest game on the board and the busiest Sunday-afternoon book at $6.7 million. A one-point spread is as near a true coin flip as this slate gets.
| Venue | Buffalo | Houston | Resting book |
|---|---|---|---|
| Kalshi | -108 | +104 | $6.2M |
| Polymarket | -108 | +104 | $279k |
| Polymarket US | -111 | +108 | $132k |
| 4Casters | -112 | +105 | $26k |
| ProphetX | -110 | +106 | $25k |
Houston is +104 at the two deepest venues and +108 at Polymarket US, a full cent of disagreement on a market both sides call a coin flip. Note also that Buffalo at -108 and Houston at +108 do not come from the same venue, which is the ordinary state of affairs here and the reason a single-venue account leaves money on the table.
Dallas Cowboys at New York Giants
Sunday, September 13, 8:20 PM ET, NBC and Peacock. Giants +3, total 48.
Sunday Night Football, and one of the three worst-priced games of the week. Its two sides sum to 101.8%, behind only Bears at Panthers at 102.0% and level with the Melbourne game. The marquee Sunday window is not the best-priced one.
| Venue | Dallas | New York | Resting book |
|---|---|---|---|
| Kalshi | -156 | +150 | $5.6M |
| Polymarket | -156 | +150 | $177k |
| Polymarket US | -150 | +147 | $151k |
| 4Casters | -153 | +145 | $68k |
| ProphetX | -152 | +146 | $25k |
Dallas is -150 at Polymarket US and -156 at Kalshi, a full cent apart on the most-watched game of the weekend. Polymarket US is the best price on the favorite and the worst on the dog, which is what a genuinely independent book looks like rather than one copying the others.
Denver Broncos at Kansas City Chiefs
Monday, September 14, 8:15 PM ET, ESPN and ABC. Chiefs -2.5, total 43.5.
The week closes with an AFC West game priced near a field goal, and with the thinnest venue coverage on the slate.
| Venue | Denver | Kansas City | Resting book |
|---|---|---|---|
| Kalshi | +127 | -127 | $6.1M |
| Polymarket | +127 | -133 | $179k |
| Polymarket US | +127 | -130 | $114k |
| 4Casters | +125 | -139 | $43k |
| ProphetX | +127 | -134 | $16k |
The only game on the marquee list where one venue is the best price on both sides. Kalshi has Denver +127 and Kansas City -127, a two-way market summing to exactly 100%, which is as tight as a binary market can be quoted. It also produces the widest single-side disagreement anywhere on the Week 1 board: Kansas City is -127 at Kalshi and -139 at 4Casters, 2.2 cents apart on the same team at the same moment.
How to read a board like this
The two-way cost is the number that matters, not the headline price. A venue can show you the best number on one side and still be an expensive place to trade the game, because the margin lives in the pair. Every venue here prices the pair between 100.5% and 101.3%. A sportsbook prices it at 104.8%.
Shop by side, not by game. On the five games above, the best price on one side and the best price on the other came from the same venue exactly once. Buffalo at -108 and Houston at +108 sit at different books. A single account is a single quote, and on this board that is usually not the best one.
Favorites scatter more than underdogs. Across all sixteen games the favorite side carries a median cross-venue disagreement of a full cent, against 0.68 cents for the underdog. That is the opposite of the intuition most people bring, and it is where the shopping is worth most.
Read depth next to price. The venue with the sharpest quote often holds a rounding error of the money. ProphetX and 4Casters appear repeatedly as the best number on a side while carrying under 1% of the week's liquidity between them. That is fine for a small ticket and useless for a large one.
How these numbers were produced
Prices and order books come from the OpenMarkets network feed, captured in a single 63-second pass at 19:09 UTC on September 9, 2026, so every figure here describes the same moment. Depth is the full ladder at each venue rather than the top level. The spread, total and moneyline in the board table are the network's blended read across all quoting venues; the per-game tables show each venue's own price.
One deliberate omission. Everything above is screen prices, and does not include what any venue charges to execute a trade. Those schedules differ by venue and by how close the price sits to even money, and the figures the venues report are not stated on a common basis, so we are not publishing a comparison we cannot stand behind. We are working on deriving the real number from actual fills on the network, backing out the cost from buy-in price, order type and payout. When that lands it gets its own piece.
Frequently asked questions
What time does the 2026 NFL season start?
The season opens Wednesday, September 9 at 8:20 PM ET, with the New England Patriots at the Seattle Seahawks at Lumen Field on NBC and Peacock. It is a rematch of Super Bowl LX, which Seattle won 29-13. The Thursday game is San Francisco at the Los Angeles Rams from the Melbourne Cricket Ground at 8:35 PM ET on Netflix, the first NFL regular-season game played in Australia.
Are prediction market odds better than sportsbook odds on NFL games?
On margin, yes, and by a wide gap. Buying both sides of a Week 1 moneyline costs between 100.5% and 101.3% depending on venue. The same two-way market at a sportsbook pricing -110 each way costs 104.8%. That is three and a half to four points of the position, before either side charges anything to execute. The structural comparison is in our sportsbook versus prediction market explainer.
Which Week 1 game has the most betting liquidity?
Patriots at Seahawks, with $43.5 million of resting orders on the moneyline alone. San Francisco at the Rams is second at $32.4 million. Between them those two games hold 47.8% of all Week 1 moneyline liquidity. Every Sunday game sits between $4.9 million and $6.7 million.
Is there enough liquidity to actually trade NFL games?
On Week 1 moneylines there is $158.7 million resting across the network, and the two standalone national games carry eight-figure books on their own. The caveat is concentration rather than volume: Kalshi holds 90.7% of it, and several venues showing competitive prices hold under 1% between them. Depth is listed next to price in every table above for that reason.
Do all the venues show the same odds?
No, and the gaps are larger than most people expect. The widest single-side disagreement on the Week 1 board is 2.2 cents, on Kansas City, where Kalshi shows -127 and 4Casters shows -139. Across all sixteen games the median favorite carries a full cent of disagreement between the best and worst venue.
Why do the two sides of a game sum to more than 100%?
Because the best offer on one side and the best offer on the other have to leave a gap, or the market would be free money. That gap is the market's margin. What makes a prediction market different from a sportsbook is not that the gap disappears, it is that nobody sets it: 0.5 to 1.3 points here against a posted 4.8.
Bottom line
Week 1 is priced better than any sportsbook will price it, and it is priced with real money behind it. A two-way market costing 100.5% to 101.3% against a posted 104.8% is the entire argument for trading a game on an exchange, and $158.7 million of resting orders is the answer to whether the quote is real.
The catch is that no single venue gives you that board. Nine dollars in ten sit at one exchange that is rarely the best price, the sharpest quotes sit at venues holding a rounding error, and the best price on one side of a game almost never sits at the same place as the best price on the other.
Live prices for every game on this board, updated continuously across all venues, are on the OpenMarkets NFL odds page. Venue-by-venue detail is in our reviews of Kalshi, Polymarket US, ProphetX and BetOpenly.
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