You could call him a specialist. An all-around contender in classic distance races, Alexey Poltoranin of Kazakhstan has proven time and time again that he has the 15-kilometer classic individual start figured out. On Sunday in Lahti, Finland, he set a new World Cup record by winning his eighth-career 15 k classic (including both individual and mass-start formats). He had previously tied Swedish legend last 15 k classic contested in Planica, Slovenia. Three of Poltoranin’s...