Question: is 5 hours a good marathon time?
Answer: A 5:00 hour marathon is approximately 11:30 per mile though a target pace training of 11:00 per mile (4:48) could be beneficial. To break five hours, you should eventually be capable of a sub-2:15 half marathon (10:15 per mile) and sub-60:00 10K (9:30 per mile).