What the Hell? Why does mine horse run out of stamina so fast
You using zoras doubled Grey?
Make sure you are not using pebbles and not whistling because it will call your horse not the one you are supposed to race with. And you need to take it back to the stable. Alot of ppl had lost the horse somewhere and retraced their steps to find through the entire map.
Yes i user the Zoras horse but i fixed it so its okay 
thanks guys