Malnutrition is not having enough of the needed nutrients (not having a good diet, eating a lot of unhealthy food but still eating) this could be from either under consumption or over consumption. While under-nutrition is when someone eats an inadequate amount of food for an extended period of time (not eating enough food in general).
A pre competition meal provides the calories, nutrients, and liquids you need to complete an athletic competition. The meal should give you the energy you need to preform & prevent hunger during the competition
