SARATOGA SPRINGS, NY -- When Hillwood Stable's Post Time (Frosted) blossomed this year, trainer Brittany Russell began the normal process of testing him in tougher races. Each time, he proved to be up to the task, leading the Maryland-bred to the biggest challenge of his career in the 131st GI Metropolitan H. Saturday at Saratoga Race Course. Post Time drew Post 3 in the field of six led by GI Breeders Cup Classic and GI Whitney S. winner White Abarrio (Race Day) and GI Pegasus World Cup and GI Preakness...