NFL Favorites Won 10 of 13: What Friday's Prices Knew
Scoring Friday's Oct 9 NFL contract prices against the final whistle, one weekend of results at a time.
Published 2026-10-12 · Data as of 2026-10-12 · Market & data intelligence · Educational, not advice.
Of the 13 NFL games priced on Friday Oct 9, moneyline favorites won 10 while the market had priced them near 65 cents—close to the 77 percent they delivered. Coin-flip contracts landed about half the time; confident ones mostly held. We score the market's own prices against ESPN finals here, not a pick record.
What a Friday price was actually claiming
A prediction-market price is a probability wearing a dollar sign. A contract that pays $1 if an outcome happens, trading at 65 cents, is the market saying roughly 65 percent. There is no house setting that number. A buyer who will pay 65 and a seller who will take 65 meet on the exchange, it matches them for a fee, and the last agreed price is what you see. It moves until the outcome is known.
This post does one narrow thing. It takes the prices that existed before kickoff and scores them against what happened. Per Delta Arc's dashboard, we saved 121 NFL prices on Oct 9 and checked them against ESPN's final scores: 13 games final, 106 lines resolved, two games still to play as of the Sunday check. None of this is a recommendation. It is a scorecard of the market, graded after the whistle.
Favorites went 10 of 13, and the price nearly matched
Delta Arc's numbers show Friday's moneyline favorites won 10 of 13 games, about 77 percent. The market had priced those favorites at 65 cents on average, an implied chance near 65 percent. So the favorites did a touch better than their price, which is exactly the kind of gap one weekend of football produces and one weekend cannot settle. Thirteen games is a small sample. Read it as a single data point, not a verdict on how the market reads football.
To make the calibration concrete, Delta Arc also computed a plain scorecard: buying one $1-payout contract on every Friday favorite, each at its cheapest venue, would have cost $8.31 and returned $10.00. That is arithmetic on the week's outcomes, not a strategy and not something to run forward. It is a way of asking whether the prices, taken together, were in the right neighborhood. This week they were close.
Reading the price buckets
The more useful test is whether prices behave like probabilities across the board, not just at the favorite end. Grouping by price, Delta Arc found that outcomes priced between 40 and 60 cents happened 43 of 87 times, about 49 percent, against an average price of 52 cents. Near-coin-flip contracts landed near a coin flip. That is what calibration looks like when it works.
At the confident end, outcomes priced above 60 cents happened 10 of 12 times, about 83 percent, against an average price of 72 cents. Those contracts resolved a little better than their price this week. Again, 12 outcomes is thin. The pattern worth internalizing is the shape: cheap contracts should hit rarely, mid contracts should hit about half the time, pricey contracts should hit often. When they do, the price was doing its job.
The upset and the cost of which venue
Every week has a game that leans the other way. Delta Arc flags the biggest Friday-price upset as Atlanta to win, against Baltimore, priced at 64 cents and then losing 30-23. A 64-cent contract is the market saying the outcome is likelier than not, not certain. Roughly a third of the implied chance sat on the other side, and this time the other side arrived. That is not the price being wrong; it is the price being a probability.
Venue mattered at the margin. On the 53 winning outcomes, Delta Arc calculates that buying at the cheapest venue instead of the dearest would have kept a median 1.3 cents more of every $1 payout. Small per contract, and it compounds across a board. Seeing the same outcome quoted side by side across venues is price information, not a signal about which side to take.
What moved between Friday and Sunday
Prices are not frozen at kickoff. Between Friday and the Sunday check, Delta Arc found the median Kalshi line moved just 1.0 cent across 60 lines quoted both times. Quiet. Of the 8 lines that moved 3 cents or more, the outcome the market drifted toward happened 6 times. The largest single move was Tennessee +6.5, against Houston, going from 46 cents Friday to 52 cents Sunday, and that outcome did not happen. A move is new information getting priced, and new information is not always right.
That one-board view, every venue's price for the same outcome in a single place, is what Delta Arc's Prediction Markets product is built to show across Kalshi and Polymarket. Next Friday we will have a fresh set of prices to grade, and a cleaner read on whether this week's calibration was signal or sample.
Sources: Delta Arc BM Dash (Delta Arc's calculation of Friday venue prices versus final scores); ESPN NFL scoreboard.
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