vice president kamla Harris overtook former president Donald Trump to become bookmaker favorite candidate on Tuesday night after a strong performance in the first presidential debate according to election betting odds tracker Harris has a 51.8% chance of winning while Trump has 46.9% this is a huge shift in Harris's favor with Harris's odds increasing by more than 4 and a half points in 24 hours while Trump's odds have fallen by four points bookmakers on British betting sites markets now estimate Harris's chances of winning to be 51.55 per up from 47.5% last week while Trump's chances have dropped to 46.3% bookmakers on the predicted platform had given Harris better odds than Trump before the debate but the vice president has increased her lead and now her odds are 56 cents a share while Trump's odds are 47 cents a share betters on crypto-based betting platform poly Market have heavily favored Trump's victory over the past two weeks Joe now believes that both Harris and Trump have a 49% chance of winning while betting markets believe the election is a close one there is a strong consensus among bookmakers that Harris won the debate poly Market bookmakers believe Harris has a 98% chance of emerging the winner in a Consolidated snap poll following Tuesday night's debate earlier this year the commodity Futures Trading commission proposed banning all election related betting in the US derivatives Market