The Water Polo Tournament at the 1991 Pan American Games only had a men's competition in Havana, Cuba. The tournament was held from August 6 to August 13.Water polo is inducted in the Pan American Games since the first edition of the multi-sports event in 1951, when Buenos Aires was the host. The women's event made its debut in 1999.Water polo is a team water sport. The playing team consists of six field players and one goalkeeper. The winner of the game is the team that scores more goals. Gameplay involves swimming, treading water, players passing the ball while being defended by opponents, and scoring by throwing into a net defended by a goalie. Water polo, therefore, has strong similarities to the land-based game of team handball. The frequency of 'man-up' (or 'power play') situations also draws comparisons with ice hockey.