Adam  Scott yesterday took advantage of favorable weather conditions early on Thursday and fired a six-under-par 64 to grab a one-shot lead after the first round of the British Open at Royal Lytham & St. Annes in  England. A large group of former major champions are 3-shots back including Tiger Woods, Ernie Els, Graeme McDowell, Bubba Watson and Rory McIlroy. World number-one Luke Donald finished at even-par 70, while Phil Mickelson struggled to a three-over 73.