In this case, a bettor would have to wager $200 to win $100 on Biden, or $100 to win $200 on Trump. Conversely, the price on Trump, the Republican candidate, moved from +188 to +200.īetting favorites are expressed with a minus sign and underdogs with a plus sign. The price on Biden, the Democratic candidate, moved up from -188 on Friday to -200. (Jim Bourg/Pool via AP)įormer Vice President Joe Biden’s odds of winning the presidential election improved to -200 over the weekend on the United Kingdom-based Betfair Exchange, but more bets and more money were placed on President Donald Trump. President Donald Trump and Democratic presidential candidate former Vice President Joe Biden participate in the final presidential debate at Belmont University, Thursday, Oct.