The purpose of this study was to examine the factors affecting the losers' task cognition and the person cognition in a competitive situation. Two factors, the patterns of loss and winners' feedbacks to losers, were examined. The 2 x 2 experimental conditions were set. For the patterns of loss condition, winning a straight victory and winning a losing game were contained, and a positive and a negative feedbacks were contained for winners' feedbacks to losers. The subjects were 44 female university and graduate students participating in the othello game, in pairs. One of the pairs being an experimental assistant, subjects lost two games in all of three games. After each game was over, the manipulation of winners' feedback was done and then subjects were asked their evaluation about the task and the opponent in a questionnaire. The main results were as follows: 1) The pattern of loss affected both the task cognition and the person cognition as a partner of the game. 2) The winner's feedback affected the formation of the cognition for the partner's personal attraction and attitude.