By Mark Lamport-Stokes ATLANTA (Reuters) - Billy Horschel felt "surreal" after producing the best three weeks of his golfing career just when he need to, capping an astonishing playoff run with a three-shot victory at the Tour Championship on Sunday. With his PGA Tour season hanging in the balance after a missed cut at last month's Barclays tournament, he gave himself a timely wake-up call and proceeded to finish second, first and first to secure FedExCup honours and the $10 million jackpot. Horschel's performance in the season-ending event at East Lake Golf Club was hugely impressive as he extended his run of scores in the sixties to 12, the longest on Tour, and outshot world number one Rory McIlroy in the final round to triumph. "It's surreal, it really is," a beaming Horschel told reporters after closing with a two-under-par 68 in damp, overcast conditions to finish three ahead of fellow American Jim Furyk and McIlroy. More...