Kalshi and Polymarket Make Miami 16 Percent to Win the Title. FanDuel, With Its Margin Removed, Says About 10. Somebody Is Badly Wrong

Ask three markets on Sunday who wins the college football national title and you get three different answers. Kalshi has Georgia, at 17 percent. Polymarket has Miami, at 16. FanDuel has Georgia at +420, which is 19.2 percent before you take its margin out. Covers led on Georgia versus Miami, because the two exchanges disagree about the top spot.

The disagreement at the top is small. Kalshi's first four run from 17 down to 12, and Polymarket's are all at 15 or 16, which is a tie in practice. The large gap is lower down, and it is about Miami. Both exchanges make the Hurricanes 16 percent. FanDuel, once you remove its margin, makes them about 10.5. That is not rounding. One price says the Hurricanes win it about one season in six, the other about one in ten, and the two cannot both be right.

Taking the margin out

FanDuel's board, as SI published it after Week 8, runs from Georgia at +420 to Missouri at +10000. Convert each of those 18 prices to an implied probability and they add up to 119.5 percent. That is a 19.5-point margin before you count any team the book did not list, which is normal for a futures market and much more than a game line carries.

Spread the margin evenly and the board's own view is Georgia 16.1 percent, Notre Dame 14.7, Ohio State 13.9, Miami 10.5, Indiana 8.8 and LSU 7.6. For the top three that is close to what Kalshi says: Georgia 17, Notre Dame 14, Ohio State 12. The book and the exchange agree on everyone except Miami.

A CBS Sports snapshot timed at 9:38 a.m. on Sunday had FanDuel at Georgia +460, Ohio State +480 and Notre Dame +490, slightly different from SI's, and we cannot tell which was taken first. Miami was +700 in both. The book was adjusting the top three on Sunday and left Miami where it was.

Why the exchanges like Miami more

The case for the exchanges is the record. Miami is 7-0 after Saturday's 52-23 win over Pittsburgh. CBS' David Cobb noted that six of its seven wins have been by double figures and that the Hurricanes should be double-digit favourites in every remaining game except the November 7 trip to Notre Dame. Georgia, the favourite on two of the three boards, lost to unranked Auburn before its bye. Ohio State, also coming off a bye, is without quarterback Julian Sayin, who SI says is out indefinitely. Covers' phrase for Kalshi was that its users are "going against the grain." On Miami, they and Polymarket's users are going the same way.

A team with no losses, an easy remaining schedule and a single tough road game should be near the top. The exchanges price that. The book has Miami fourth and still behind an Ohio State team without its starting quarterback.

The case for the book

The best argument for FanDuel's number is that a sportsbook futures price is a model, and an exchange price is the most recent trade. Polymarket's top four at 15, 15, 15 and 16 look like resting orders at round numbers, not a judgement that four teams are equal. Neither Covers' report nor anything we could read gives the volume behind these prices, and Polymarket's main site would not show us the market from the United States. A 16 percent quote with little money behind it is a weaker signal than FanDuel's +700, which is backed by the book's own liability.

The schedule argument cuts both ways as well. Double-digit wins against an ACC schedule tell a power-rating model less than the same margins against Big Ten or SEC opponents. A book that rates Miami below Georgia and Ohio State on a neutral field, whatever the records, will price Miami fourth. That is a legitimate view, and it might be the correct one.

We do not think it explains all of the gap. If FanDuel's model saw Miami as clearly the fourth-best team, the price would also reflect that Miami's route to the playoff is much clearer than that of a team that has already lost. A 10.5 percent title chance for an unbeaten team at this point implies either low playoff odds or a heavy discount once Miami gets there. We could not find a reason for either in the reporting. On Miami, we think the exchanges are closer to correct, and we would expect FanDuel's +700 to shorten before the exchanges' 16 drifts.

The test is November 7. If Miami wins in South Bend and FanDuel is still longer than +500, the book is holding a view about Miami's quality that we did not account for. If Miami loses, the exchanges were overpricing a schedule, and Cobb's double-digit point becomes the argument against them.

The team two of the three markets nearly ignore

UCLA beat Michigan State 28-10 on Saturday to go 7-0 and 5-0 in the Big Ten. It is the program's first 7-0 start since 2005, and the Bruins are ranked No. 9. They outgained the Spartans 443 yards to 156. Bob Chesney's postgame summary was a list of errors: "Two fumbles, two drops, two holding penalties."

FanDuel has UCLA at +8000, 1.2 percent before the margin and about 1 percent after it, tied with Kentucky and Wake Forest. Kalshi has the Bruins at 3 percent. Polymarket, according to Covers, does not list them at all. Covers' line: "Despite being 7-0, UCLA is not listed."

Here we think the market is right to be sceptical, and we are not arguing for the Bruins. A 28-10 win over a 2-6 team that has lost six straight is not evidence of a title team. But the spread between 1 percent and 3 percent is the same type of disagreement as Miami's, at a smaller scale. That makes it worth watching for the same reason. When a book and an exchange price the same unbeaten team three to one apart, at least one of them has not updated. UCLA plays Nevada next, so the Big Ten games that follow will be the first test of which price was stale.

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