South Korea’s Ko Jin-young birdied six of her last nine holes to fire an eight-under par 63 and grab a two-stroke lead after Friday’s second round of the LPGA Founders Cup.Ko opened on the 10th hole with a birdie and added another at 16, then birdied the first and second holes as well as the fourth and reeled off three birdies in a row starting at the par-5 sixth.