Many options that are given here can be considered an outcome of competition between two parties like development of a mutual respect among the competitors can be one outcome as they can evaluate skill that their competitor has.
Skill sharpening and Improvement in performance is also an outcome. Quality of sportsmanship is increased and a failure in competition inspires the competitor to work hard and practice more for next time which helps one to improve from what they previously had.
What advance did ancient doctors in India make in the field of medicine? How are those advances like accomplishments I'm the field of medicine that today