Betfair said the board had reviewed the proposal and "rejected it on the basis that it fundamentally undervalues the company and its attractive prospects and is highly conditional."
In a statement, Betfair chairman Gerald Corbett said: “We have a unique business with a market position, profitability, cashflow and prospects that this proposal fails to recognise. Our new management team are implementing the strategy announced in December and it is this that will realise value for shareholders."