Some 59% of viewers found the sitting president to have been the most convincing in the long TV debate than his rival Marine Le Pen, according to a snap poll for BFM TV.
Opinion surveys immediately after a marathon TV debate on Monday between the top five candidates campaigning for the French presidency found the most convincing participant was centrist Emmanuel Macron, who on Tuesday was boosted by support from both a junior minister in the socialist government and also an advisor to President François Hollande.
The leading five candidates, out of a total of 11, take part in the first televised debate between them on Monday evening, regarded by observers as a key contest to win over what opinion polls show to be a large number of the elctorate who have yet to decide with who they will place their vote.
An opinion survey following Thursday's live TV debate between the seven rivals to become France's conservative opposition party's candidate in next year's presidential elections gave former prime minister Alain Juppé a significant lead over second-placed Nicolas Sarkozy.
The seven rivals in the race to become the presidential candidate for the mainstream right-wing opposition party Les Républicains in elections next April take to the stage Thursday for their first live TV debate, with opinion surveys indicating that former president Nicolas Sarkozy lags behind veteran Gaullist Alain Juppé.