What is a mud ball?

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A mud ball is a golf ball that is covered in mud or dirt, which can dramatically affect the ball’s flight and trajectory. Mud balls were especially problematic at the PGA Championship in 2025. Leading up to the tournament, the Quail Hollow Club in Charlotte, North Carolina, had received a significant amount of rain, creating mud and puddles on the course. However, the PGA of America opted not to allow preferred lies (“lift, clean, and place”), in which golfers can clean a ball and move it to a nearby spot. While this decision upset some golfers, the rule is typically not used at a major golf event.

What golf terms should you know?

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Birdie? Eagle? If you’re new to golf, the terminology can be incredibly confusing. We’re here to help. Below are the definitions of 15 common golf terms.

  • Ace: Also known as a hole in one. Getting the ball in the hole in one stroke.
  • Birdie: A score of one stroke under par.
  • Bogey: A score of one stroke over par.
  • Caddie: Person who carries the clubs and offers advice to the player.
  • Double bogey: A score of two strokes over par.
  • Double eagle: A score of three strokes under par.
  • Driver: Golf club that is usually used on a tee. It hits the longest drives.
  • Eagle: A score of two strokes under par.
  • Fairway: Area between the tee and the green.
  • Green: Area around the hole and flag. The grass is especially short for better putting.
  • Iron: Golf club for medium-range distances.
  • Mulligan: Redoing a shot; not allowed in official play.
  • Par: Number of strokes a player is expected to use on a given hole.
  • Wedge: Golf club that allows for the most loft. There are four types of wedges: pitching wedge, approach/gap wedge, sand wedge, and lob wedge.
  • Wood: Golf club similar to a driver but with a smaller head and shaft.