Kaillie Humphries is on course towards becoming the first woman to win Olympic bobsleigh medals at four Games, a feat that Elana Meyers Taylor is also in contention for. World champion Humphries, who won two golds and a bronze for Canada but now competes for the United States, claimed a track record in the first run en route to the overnight lead Sunday in the inaugural monobob competition. She holds a massive lead of 1.04 seconds over Canadian Christine de Bruin. Germany’s Laura Nolte is another 18-hundredths back in third. American Meyers Taylor is one-tenth behind Nolte in fourth. She overc…