Systems and methods for computing a strokes gained performance metric from ball flight data that considers predetermined offline information
AssigneeKarsten Manufacturing Corporation
InventorsChristopher M. Broadie, Martin R. Jertson, Erik M. Henrikson, Paul D. Wood
Life of this patent
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Abstract
A system for computer-implemented golf shot analysis includes a tracking device and a computing device. The computing device accesses ball flight data generated by the tracking device in view of a predetermined gradient map and associated functionality to derive a performance metric that penalizes shots deemed to be offline.
Claims14
A computing system configured for computing an enhanced strokes gained performance metric from ball flight data that considers predetermined offline information, comprising;
- a database storing flight data for each of a plurality of golf shots struck by a first golf club from a starting position, the flight data including a pre-shot distance between the starting position and a target position and a post-shot distance between a landing position and the target position;
- a processor configured to access the flight data and execute a plurality of services including:
- a strokes gained value computations service configured to identify an initial strokes gained value for each of the plurality of golf shots by comparing a first expected hole-out value based on the pre-shot distance to a second expected hole-out value based on the post-shot distance;
- and
- a performance metric computations service configured to identify a performance metric by transforming the strokes gained value for each of the plurality of golf shots based on a variable penalty parameter;
- wherein the processor is further configured to execute a predefined offline penalty function that defines a gradient map;
- and
- wherein the gradient map designates a particular value for the variable penalty parameter based on where each of the plurality of golf shots lands along the gradient map.
A method of computing a strokes gained performance metric from ball flight data that considers predetermined offline information, comprising:
- accessing, by a processor, a dataset associated with a plurality of shots from a golf club;
- generating, by the processor, a performance metric from the dataset, by steps of:
- (i) computing a set of strokes gained values by considering at least a difference between a predefined expected hole out value corresponding to a target distance and a predefined expected hole out value corresponding to an actual carry distance for each of the first plurality of shots from the first golf club,
- (ii) executing a predefined offline penalty function for each of the set of strokes gained values to derive a respective penalty parameter for each of the first plurality of shots from the first golf club, the respective penalty parameter determined by offline information including a landing position of each of the first plurality of shots relative to a target position,
- (iii) applying the respective penalty parameter to each of the corresponding set of strokes gained values, and
- (iii) averaging the set of strokes gained values as modified by the respective penalty parameter;
- wherein the predefined offline penalty function defines a gradient map;
- and
- wherein the gradient map designates a particular value for the variable penalty
- parameter based on where each of the plurality of golf shots lands along the gradient map.
Dependencies are inferred from the claim text.