Those who pushed the right button on the outcome of the F1 Grand Prix title, were collecting at 9-1 ante-post on Jenson Button at the start of the season.
Some did even better as a number of firms quoted 100-1 when the Brawn team was first launched.
“Punters got wind of Brawn’s pace before we did and this has hit us hard,” said a spokesman for William Hill.
And when Brawn and Button took the first six races, the ‘books’ were soon in reverse gear.
His victory was also something of a relief for Paddy Power who paid out on Button when he won that sixth race back in Turkey last June.
Button is 14-1 with Stan James to follow up next season but there is no guarantee he will still be with Brawn, unless he gets the £8m he is looking for.
Bet365 go 28-1 that he manages four or more wins in 2010.
Dethroned champ Lewis Hamilton is the 5-2 favourite to regain his crown while Fernando Alonso, who is off to Ferrari, is 7-2 and Sebastian Vettel 7-1.
Button is, now odds-on favourite to be named BBC Sports Personality Of the Year and even at 8-15, that looks a stone cold certainty.
BBC Sports Personality Of The Year: 8-15 J Button; 3-1 J Ennis; 16-1 A Strauss; 25-1 A Flintoff, B Tweddle.
Bet 365 - Button wins in 2010: 6-4 none; 11-8 one; 5-1 two; 12-1 three; 28-1 four or more ; 16-1 Button to finish every race in points; 10-1 win British GP.
Hill’s - Number of driver changes for 2010: 8-11 eight to 11; 7-4 five to seven; 3-1 12-15; 25-1 16-19; 66-1 one to four; 100-1 all 20.