Sub 2的意思

"Sub 2" is a term commonly used in running, particularly in reference to the marathon distance of 26.2 miles (42.195 kilometers). It means "under two hours." The term is used to describe a runner's goal or achievement of completing a marathon in under two hours.

Breaking the "Sub 2" barrier in a marathon is a significant accomplishment and is considered a mark of elite performance for marathon runners. It is a goal that requires a high level of fitness, endurance, and strategic training. Achieving a sub-2-hour marathon is particularly challenging for amateur runners and is often a goal for competitive runners aiming to improve their personal best times.