Is It True That "In Tennis Not All Points Are Equal"?
Initially all points seem to be equal but, in reality they all have a different value which is intrinsically tied to the moment at which the point is played therefore the score.
For example, an apparently innocuous first point (15-0 or 0-15) of a match can be a pretty straightforward ace affair on a hard/grass-court or a 10 to 20 minute battle on clay!
In the first case there are no scars. In the second situation the damage can be substantial. I have seen matches where the conqueror of that first point runs away with a quick 6-0 set. In other cases it takes so much energy from the winner of that 15-0 point that they end up losing that game and the set.
Once again in the first situation it is easy, you won a straight forward point. In the second it is hard to turn around, relegate it to oblivion and start all over again and become detached from a major battle for a point where you gave it all and lost. Neverthless, if you want to be a top mental percentage player it is a must, just tell your bruised ego to forget it, regroup and do battle again.