Tradesports was an online trading exchange website whose members speculate on the outcomes of future sports events. Founded by John Delaney in 2000,[1] and located in Dublin, Ireland, by 2005 it reported 50,000 members and an average monthly volume of four million trades.[2]
Tradesports' sister website, Intrade.com (founded in 2001[3] and acquired by Tradesports in 2003[2]), is a prediction market for all non-sports-related events.
On November 18, 2008, it was announced that TradeSports would cease operations and expire all open contracts at prices not equal to 0 or 100, even though the site stated that all funds were segregated and that contracts would all be expired at 0 or 100 depending on the outcome of the underlying event, with Tradesports merely acting as an escrow agent.