The Road Scholars China Coast Marathon, Hong Kong’s longest-established race over that distance, promises runners a daunting but spectacular challenge when its 45th anniversary edition takes place next month. It falls on January 11, just a week before the Standard Chartered Hong Kong Marathon, the city’s largest running event, and offers an alternative to its 74,000-runner counterpart in more ways than one. Expected to draw about 1,000 runners in total for its marathon and half-marathon, the...