Cancer Research UK has been named as the official charity of the 2015 London Marathon and is hoping it will raise two-and-a-half times what it usually brings in through the event.
A spokeswoman for the charity said it usually raised about £1m a year through the marathon, but was aiming for £2.5m next year.
She said it hoped the arrangement would mean it would have more than 2,500 runners in 2015, up from an average of about 1,500 a year. It had about 1,200 runners in this year's event.
The status of official charity gives CRUK a publicity boost as well as the projected fundraising increase, the spokeswoman said: "It’s very much about both the fundraising and also showing that we are a collective force against cancer."
The official charity for 2014 was the blood cancer charity Anthony Nolan. A spokeswoman for the charity said it was on track to meet its £1m fundraising target for this year's event, roughly double what it usually raises.
Helen Jackson, head of sports at Cancer Research UK, said the charity was thrilled to be the official charity for the 2015 Virgin Money London Marathon.
The ballot for the 2015 London Marathon opens on 22 April. At this stage people can choose to run for a particular charity, but those not getting ballot places can also apply for charity places later on.
Next year’s London Marathon will take place on 26 April.