Confidence in a Christ-like manner

-Don't disrespect opponent

-If you don't believe you are the best, you won't be.  Part of doing your best is preparing your mind to be the best.

-Play your hardest doing your part, expect to bring about the desired results, but submit to whatever happens, allowing God to take care of the results.  You can do this when you are confident and do absolutely everything in your power to be successful.  What you don't want is to step away knowing that you made mistakes that cost you.  I don't believe God will necessarily make you make mistakes.  I have never felt that in my life, and I don't believe it is the nature of God.  I do believe that he has blessed my efforts despite my fear, and despite my mistakes as part of His grace, but I don't believe he causes us to make mistakes.  Therefore, go out and confidently go out and do your best for the Lord.  Be confident and play to succeed.  The goal is to worship the Lord by playing in a way that honours Him.  You never want to walk away having lost feeling like your mistakes and lack of preparation and fear cost you the desired results.  As long as you do everything in your power to win, if you don't, you can know that God took care of the results as He saw fit, and that it wasn't His will for you to win, and that despite the fact that you didn't win, you worshiped Him well in the process, because you gave your best for His glory.