Just wanted to share an experience especially with nkp9999 and BPositive, where I used EFT on my own sports performance. I show horses, and have used EFT with really excellent results. I hope you'll forgive the long post, but it helps me when I read very specific descriptions from other people.
Because I don't get to ride and practice very often, mental training and EFT help me advance even with limited practice.
I was at a show recently and had a bad practice ride a few hours before my competition. My trainer gave me one of those very frank "coach" talks about what had gone wrong and what it would take to fix it. When I asked if there was anything I could do in my competition (it's called a "class", although it's the actual competition when you're being judged) he pretty much said, just hang on and try to get through it, we'll have to fix these problems later in practice. This is usually because when a horse goes into a class, he knows he's not likely to get corrected in front of the judge, and will often magnify whatever performance problems he had in the practice ring or indulge in any bad habits he's gotten away with in the ring before.
I went back to my hotel and spent an hour and a half doing EFT. I started by writing down all my negative or limiting beliefs. Before I started tapping, I tried to capture all the aspects that came up for me. Then I methodically tapped on them, one by one, and was careful not to switch aspects in the middle of working on one. Many were similar to Chris's list. They included such things as being nervous, worrying about what others were thinking, not wanting to let my coach down, feeling I didn't deserve to win, and feeling underprepared.
After I tapped on an item, I then tapped on a positive. I used ideas from Gary's Palace of Possibilities, such as, "I accept the possibility that I do deserve to win" or "I accept the possibility that this limiting belief is keeping me from reaching my peak performance." Then I included "I give myself permission to change."
As I finished a limiting belief, I physically crossed it off on the list, as a way to reinforce that I was done with it.
If I found an issue that caused a physical reaction in me, like tightening of the stomach, butterflies, or another manifestation of tension, I spent as much time on it as I needed to bring the level down as far as I could. On one particular statement I used 9 Gamut, collarbone breathing, and the eye roll and never got it to zero! But I got it to a manageable 1.
After I finished all my limiting statements, I surrogate tapped on my horse. I used statements that reflected what he was doing that might go wrong in the class, and finished with "I'm a good horse, I respect my rider, and I know my rider deeply and completely respects me." For human team sports surrogate tapping might be used on a team member.
Once I got to the show grounds and nerves kicked in, I either went off by myself to tap, or tapped my karate chop point as I felt the physical symptoms of nervousness. This kept my nerves down to very manageable level.
I rode into the ring and had a tremendous ride. It was the best ride my horse and I had ever had, and his responsiveness was impressive. We had none of the problems we'd had in my practice ride. I won the class, and also the championship class two days later. My trainer told me he knew the horse was in great show form but had not thought I could "get out of his way" and keep him there, and I had proven him wrong.
As reinforcement after my first ride, I went back and wrote down everything that was right about the ride. In preparing for my championship ride two days later, I used my list of positives and reinforced them with tapping, then I tapped on any nervousness that came up, such as the belief "I can't do it twice in a row" or "I choke when the big prize is on the line".
I also used a technique I'd read in Gary's newsletter, "I love that about myself", in which you begin with a negative, such as "Even though I sabotage myself when the big prize is on the line" then you inject something positive that you know to be true, like "I've succeeded under pressure at other horse shows" and add the positive affirmation "and I love that about myself" said with GREAT enthusiasm!
All of these techniques together were the recipe for success for me, and I hope they give you some ideas that you can adapt to your own sport.