Competition exists when there is an awareness of
comparison between two or more individuals or groups attempting the same thing, be it running a race, playing the
zither, or selling the most
widgets.
Some find competition frustrating and believe that it applies too much pressure to succeed. For competition to be enjoyed, all parties involved must undertake it with something akin to the Olympic spirit. Win or lose, it is the doing of the thing that counts. If you don't run, there is no way you can win, or improve your speed, your form, etc.
Of course, if you don't win one now and then, curse loudly and go compete in a different arena.