What best describes a "grid" in jumping training?

A grid in jumping training refers to a series of jumps set up in a specific arrangement, designed to enhance the performance of the horse and the riding skills of the rider. This training method typically includes a series of verticals and/or spreads placed at measured intervals, allowing the horse to develop its technique, balance, and confidence while jumping. It also helps riders learn how to accurately assess distances, improve their timing, and maintain proper positions throughout the course of jumps.

The structured nature of a grid enables both horse and rider to practice and focus on various elements of jumping without the added variables present in more random setups. This systematic approach facilitates a controlled environment where both can improve simultaneously through repetition and refinement of technique.