If you don't know where you're going, you won't know if you got there. If you can't measure it, you can't manage it. These sayings sum up how important goals are. Individual goals and team goals need to be set and assessed on a regular basis. Goals will be set high enough to require extra effort to achieve them yet low enough to be realistic.
Rules are in place to establish fairness.
The satisfaction from true competition can only come with the knowledge that one's opponent was defeated without an unfair advantage. Be positive and encouraging. Criticism, arrogance, condemnation, and complaints do not get one respect. Be humble in victory and congratulatory in defeat and people will like you. Remember that the difference between winning and losing is often very small.