Longboat Key will be a solid favorite to win the last leg of the marathon series Saturday at Northlands Park. The eight-horses entered will start at the top of the stretch and then make three complete laps while going around six turns in the two-mile race for 3-year-olds and up. The race is run under starter handicap conditions and is restricted to horses that have started for a claiming price of $8,000 or less in 2013 and have not won for a claiming price of $12,500 or more since last starting for $8,000.