2.81 is too long for the side with the better goal difference

At 2.81 the best price on Southampton asks you to believe they win this roughly 36 times in a hundred, and the median of 2.71 is barely more generous at about 37%. Over the past day the away price has drifted slightly, 2.77 to 2.81, while the draw shortened from 3.90 to 3.75. Nothing in that move looks like news. It looks like the market tidying itself around a home side it still rates at about 42% on the median.

The story the crowd is leaning on is easy to find: Southampton have taken two points from four league trips and won all four at home, and that split has become the shorthand for them this season. It is a real pattern, but it is four matches. The wider numbers are less kind to Norwich. They have lost six of their nine league games and sit 19th with a goal difference of minus two; Southampton are on plus ten from the same number of matches, 20 scored and 10 conceded, and are only 13th because of a four-point deduction. Norwich lost 2-1 at Swansea last time out, Southampton beat Portsmouth 1-0. A side with that goal difference priced as the clear second choice away at a team in the bottom six is the market weighting a four-game away record more heavily than a season of underlying performance.

That does not make Southampton value at any price, and the home side has every reason to turn this into a scrap. But the price has moved away from the better team for no reason I can see, and the market has the two sides closer together than the table beneath the deduction suggests.

Verdict: Southampton to win at 2.81, a price the market has let drift for no visible reason.