World Golf ChampionshipsBrian KeoghOctober 01, 2006American Express Championship, Darren Clarke, Padraig Harrington, Tiger Woods, WGC-Cadillac ChampionshipComment Woods wins Amex as Harrington falters Tiger Woods racked up the records with a massive eight-shot win in the American Express Championship. But Padraig Harrington was left to reflect on an opportunity missed as he slid from fifth at halfway to a share of 17th after a closing 73. World Golf ChampionshipsBrian KeoghOctober 01, 2006American Express Championship, Darren Clarke, Padraig Harrington, Tiger Woods, WGC-Cadillac ChampionshipComment