A measurement device and method for measuring a portion of an animal's leg to more accurately and fairly determine the height setting required for a jump apparatus to be jumped by the animal. The device, which is particularly useful for measuring dogs for Flyball competitions, comprises an elongated body member and a sliding mechanism slidably attached thereto. The preferred body member has a curved cross-section. A preferred sliding mechanism comprises a slot disposed in the body member and a slide member that slidably engages the slot. In use, the body member is placed against the ulna of the dog's front leg with the first end of the body member positioned at the intersection of the ulna and the accessory carpal bone so a contact plate of the slide member can be slid against the elbow. A color coded and labeled chart on the body member provides the jump height setting.
