I do a lot of endurance racing and I find it very difficult to stay focused unless I'm involved in a battle with someone.Sometimes it feels worse than others. Could it be related to the type of food/drink I consume on race day?
It could be, I have seen drivers improve a great deal by changing what they eat. They have gone for dried fruit and nuts, pasta and eat with a little and often approach. Also drink loads of water and only use isotonic type drinks if its hot and you need to replace salts