We must take into account that the bad day when, without any explicable reason, also the easiest things become difficult, can happen frequently. In fact, the statistical incidence of the dark day varies from player to player: it happens to everyone, sooner or later, to face a negative day that sometimes depends neither on the opponent’s quality nor on the performance’s anxiety but only on that inexplicable amount of components, including biorhythms, that can give as a result a good or a bad tennis performance.
Also professionals aren’t left out of the fatal event of the dark day but when it happens they don’t always lose! Players often stay tactically and mentally clear headed and so they win or at least they make it more difficult for the opponent, even when they play somewhat bad or they are having a negative day.
How do they manage it? Cheers Federico