This winning strategy, there may be more than one, has five components, each of which has to be in place at the time of the competition/performance. They are: (1) Intelligence, (2) Imagination, (3) Discipline, (4) Emotional Control, and (5) Practiced Personae.
Intelligence consists of knowledge of the game, and the ability to formulate a series of future actions, during the competition that will move the performer towards the win. It also includes the ability to read the competition and adjust the game plan to take advantage of opportunities. It draws on experience in not only this competition, but all previous.
Imagination consists of extrapolating the information gathered by intelligence into a plan of action. All of what has transpired earlier, all the way back to the very beginning, is available for imagination to use.
Discipline is in the form of knowing what to do and doing it. It has to be an integral part of a person. It is part and parcel of the individual as affairs are conducted, in and out of competition.
Emotional Control is in the form of dealing with an evolving situation that may, or may not, be according to plan. Emotions are evoked by both successful and unsuccessful results. They can also come from reacting to a competitor's performance. There's a tendency to compare during competition and this comparison can evoke an emotional response. It even goes deeper into self-image, history of success and failures, damaging self-talk, and reactions to perceived judgement by others. Suffice it to say that when emotions gain influence, results can be affected. Admittedly, sometimes positively, but most of the time not so.
Practice builds a level of skill. Actively thinking about the act to be taken is detrimental to the success of the action. Consciously allowing the practiced persona to take the action allows that practice to be utilized. This turnover needs to be made at the instant of the action, be it a swing, a shot, a step, or whatever. If other personae get involved, the result is compromised. That involvement has the same affect as spectators distracting the players. Once the act is taken, the other aspects of the strategy come back into play.
This strategy works for any and all performances, regardless.