21/07/2025
βFalseβ ground lines on jumps----A discussion
Imagine coming at the jump in this photo from the landing side to get a better grasp on what is meant by a false ground line. You can see that the top of the jump would be closer to the horse than the bottom of the jump, where it meets the ground.
Horses judge their takeoff spots by where they think the bottom of the jump is, and if the bottom is farther away than the top, it is deceptive to the horseβs vision, and can cause the horse to misjudge its take off point and get too close, This can lead to a knocked down rail if the rails are in cups, but on cross country, where the rails are solid, it can lead to a fall, even to a deadly rotational fall where the horse somersaults over the fence and crashes to the ground from high in the air.
It is highly irresponsible of a course designer or builder to not use generous ground lines. Anything helps, a log in front, or some brush, some hay or straw bales, some pine straw, but some cross country course designers either do not understand this, or leave out ground lines on purpose to add to the challenge.
At Rolex one year they had a fence like this one in the photo called a pheasant feeder, and the approach side wasnβt filled in. I was standing there when a young girl missed her distance, got flipped on, and killed.
Eventing is dangerous enough done right. Done wrong it can be fatal. When you walk your course, and you see a fence with an insufficient ground line, say something to the technical delegate. Usually, if the TD is competent, she will fix it.
Donβt expect others to save you. Often they do not know despite their credentials.