doing a fitness course and struggling to answers this question I said he probably needs to work on other fitness aspect like resistance training and flexibility because his cardio is obviously good. What other needs and expectations do you think he needs?? Also what sort of limitations would their be for a young 25 year old male already doing some exercise??
His program will depend on the type of race he is looking to participate at (short or long distance, triathlon, obstacle course, etc.). As for what he can improve the answer can be long or a short one depending on his limitations and imbalances. Diet can also be another thing he might need to work at.