US Election: Harris has electoral college advantage in new Betfair Predicts graph

• New Betfair Predicts graph shows electoral college votes

• Harris winning in the popular vote and electoral college

• Betfair Predicts shows US election odds as you've never seen before

• Get a completely free US election bet on the Betfair Exchange

• Get the latest data including current prices and volume of bets in our daily update

The latest in Betfair Predicts' series of illuminating graphs on who will win the US election shows Kamala Harris passing the crucial 270 mark in the electoral college.

The electoral college will ultimately decide the outcome of the election on 5 November. Each state is allocated a number of electoral college votes, which broadly correlate with state size and population. This is why some states have more electoral college votes than others. There are a total of 538 electoral college votes up for grabs.

To win the election a candidate needs a majority in the electoral college which means they must win 270 votes.

It is possible for a candidate to win the popular vote (the most votes from the electorate) but still lose they electoral college and therefore lose the election. This happened most recently to Hillary Clinton in 2016.

The good news for Kamala Harris, who is the favourite on the Betfair Exchange to win both the popular vote and the election outright, is that, at the time of its launch, the new Betfair Predicts graph shows her winning 273 electoral college votes. Donald Trump trails on 262.

Post-debate buzz takes Kamala clear in College projection

The Betfair Predicts US election electoral college graph arrives as bettors continue to react to Tuesday's debate when Harris scored a signficant victory over Trump. Her performance sparked intense activity on the Betfair Exchange as bettors backed Harris in to odds-on favourite while Trump drfited to outsider status.

Betfair Predicts shows the US election odds as you have never seen them before. Its graphs present up to date information about the state of play in the battle for the White House that is easy to understand. It is your essential guide to staying aware of what is happening in one of the tightest elections ever.

Now read the latest updates from the Betfair US election live blog