Question 4. What is a score called and why do the teams change directions whenever there is one?

Points scored in polo are called goals, which is much more straightforward than trying to explain why polo teams don’t change field directions by periods or halves like other sports.  One theory is that the practice of changing after every point (sorry, goal) scored originated in the days when many polo fields ran east-west (they’re usually situated north-south now) and neither team wanted to play for extended periods of time with the sun and/or wind in their faces.  It’s a plausible explanation, especially when you consider that in late nineteenth-century periods of play changed every time a goal was scored.  We know the practice dates to at least 1873, when England’s Hurlingham Polo Association drew up its polo rules.