Fifty-five lacrosse players from five countries (Australia, Canada, England, the United States, and Wales) competing in the 1986 Lacrosse World Cup Tournament completed a questionnaire regarding their use of mental preparation in training and competition. The findings revealed that 81 % of the subjects considered mental preparation to be very important or extremely important in preparing for competition, and only 2% considered it to be unimportant. A one-way ANOVA indicated a significant difference among the countries on 3 of 10 variables studied. A significant difference was demonstrated between lacrosse teams from various countries in the use of visualization/imagery and frequency of dreams about play (Canada made most frequent use). There was also a significant difference in the frequency of mental training received from a trained sport psychologist. Perhaps not coincidentally, the lacrosse team that had the most frequent contact with a trained sport psychologist (Australia) was the most successful team at the tournament.