Carbohydrates are the primary source of energy for the body and for better stamina, you need to include complex carbs in your diet and brown rice are a rich source of complex carbs and also is a rich source of fiber and vitamin B, it contains less starch and it is easier to digest.
Eggs are the best source of protein and it has a high biological value.
It improves muscle strength and faster the recovery of a muscle.
Green vegetables contain iron and the lack of stamina could very well be a symptom of iron deficiency, it augments RBC count and releases instant energy.
Citrus fruits like lemon and orange are high in Vitamin - C which supports the respiratory system and improves body immunity level.
Pulses are high in fiber and carbohydrates, and also a significant source of vitamins and minerals. Pulses are a power pack source of nutrition.
So these are some of the foods you can add up to your diet for improving stamina for running and endurance of the Body.