More than £7m has been raised through the lottery for the London Olympics just seven months after London won the right to host the event.
The Go For Gold scratchcard was hugely successful
The National Lottery is to contribute up to £1.5bn for the 2012 Games.
Lottery operator Camelot believes it is on track to raise £14m by the end of March.
The aim is that a new £1 winter sports scratchcard Win Gold, launched on Wednesday, and other games will bring in at least £750m.
The remaining £340m of lottery funding is to come from the Sports Lottery Fund, and, if necessary, up to £410m from mainstream Lottery games from 2009.
Tessa Jowell helped launch the new scratchcard in Trafalgar Square
Another game, Dream Number, is on the cards to be launched in the summer.
Camelot is hoping it continues the success of Go For Gold, its first 2012 game launched in July.
It was the fastest selling of all the 60 new £1 scratchcards launched by Camelot since November 2002.
And the Bee Lucky scratchcard, which launches next month, will also go towards funding the 2012 Games, Camelot has confirmed.
There are 15 million Win Gold scratchcards up for grabs along with over £9 million in prizes from £1 to £10,000.