The first round of voting, which takes place on Sunday April 23, is set to be a closely-fought battle between the four major candidates.
Marine Le Pen is running on an anti-EU platform and has vowed to clamp down on immigration in an attempt to make France “more French”.
The latest opinion polls put her neck-and-neck with former Finance Minister Emmanuel Macron – who is running under the independent banner En Marche!
With as much as 20 per cent of French voters still undecided, both candidates face competition from far-left socialist Jean-Luc Mélenchon, who has stormed ahead in the polls in recent weeks, and ex-Prime Minister Francois Fillon.
Mr Fillon was initially at the top of the polls but his position has crumbled ever since he he was accused of paying his wife for work that she didn’t do. He has denied all allegations.
After Sunday’s vote, the top two candidates will progress to a run-off which takes place on Sunday May 7.
Latest French election odds:
Marine Le Pen is currently predicted to win the first round of the elections with Betfair odds of 10/11.
More than £11 million have already been put forward in bets, with the highest placed on Mrs Le Pen with £12,500 at 4.2
The first leg of the French presidential race is this weekend – here are the latest odds
Poll favourite Emmanuel Macron has been given 15/89 odds to win the first round, but is the favourite to win the presidency.
Betfair spokesperson Naomi Totten said: "There is plenty of action on the political markets, with £1.5m matched on the Next French President market alone this week.
“The big moves have been from Jean-Luc Mélenchon who is now trading at 11/1 but was backed as short as 7/1 on the weekend.
“Fillon has also come back into the running and is now second favourite ahead of Le Pen.
“The market is likely to see a boost in activity on Thursday, with each of the main candidates taking part in a live television interview in the absence of the cancelled live debate.”
Who will be the next President of France?
Mon, March 20, 2017
Candidates for the 2017 French Presidential Election revealed
1 of 6
Latest odds on the next President of France:
Emmanuel Macron – 21/20
François Fillon – 100/30
Marine Le Pen – 4/1
Jean-Luc Mélenchon – 11/1
Francois Aseelineau – 119/1
Benoît Hamon – 899/1
Current Betfair odds place Mrs Le Pen as the winner in the first round on Sunday
Emmanuel Macron is expected to win the presidential elections
Latest odds on to win the First Round:
Marine Le Pen – 10/11
Emmanuel Macron – 15/8
François Fillon – 17/2
Jean-Luc Mélenchon – 18/1
Benoît Hamon – 999/1
Jean-Luc Melenchon is trailing behind in the polls with 19 per cent of the vote
French election polls
Marine Le Pen and Emmanuel Macron are neck-and-neck at 22 and 23 per cent each, according to the latest poll from PrésiTrack OpinionWay / ORPI pour Les Echos et Radio Classique.
Francois Fillon is close behind on 20 per cent, with far-left firebrand Jean-Luc Mélenchon on 19 per cent.
If Mr Macron and Mrs Le Pen win the first round, Mr Macron is predicted to win 65 per cent of the final vote.