<p> Betfair Exchange said a record 434 million pounds has been bet on the outcome of the winner - more than double the amount in 2016. It accepts bets right up until the result is announced. All you need are the odds of the selection and the stake amount you wish to place. Nov 2 (Reuters) - Bettors have placed more than 50/50 odds on the results of Tuesday's U.S. If, for example you have a Trixie