| 摘要 |
Sports training apparatuses, systems and methods for allowing a golf club user to estimate the trajectory and distance of a golf ball once it has been impacted with the golf club. One embodiment includes a golf club made up of a head, a ferrule, a shaft and a grip wherein one or more markings are positioned on said head, ferrule, shaft or grip or any combination of the head, ferrule, shaft and grip so the one or more markings may be used for monitoring and aiding in the improvement of the player's performance. The markings may be positioned at one or more locations about the external surface of one or more portions of the golf club including the head, the ferrule, the hosel, the shaft, and the grip. In other embodiments, additional markings may be used in conjunction with the first set of markings.
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