Last year’s historic victory by Nick Dunlap as an amateur at the American Express has him brimming with confidence, poised to repeat as champion. Yet, don’t forget, only Johnny Miller has won this event back-to-back, and Dunlap’s current 5,000-to-1 odds suggest a high-stakes bet. With world No. 2 Xander Schauffele’s withdrawal, could this year’s event be ripe for surprises? SportsLine’s model has nailed 13 majors, so their insights might not miss the mark this time.