Golf club and other object fitting using quantitative biomechanical-based analysis

A system configured for performing object fitting recommendations in connection with an online system, the system comprising:

• one or more hardware processors;
• and
• a memory configured for storing instructions, which when executed, cause the system to:
• receive, from a user device, a sequence of 2D images of a user's movement using a first object;
• analyze the sequence of 2D images to generate 3D data of the user's movement;
• perform a quantitative, biomechanical-based analysis of the user's movement from the 3D data to generate biomechanical values;
• compare the biomechanical values to target values and known biomechanical capabilities to determine a recommendation for a second object;
• and
• display information about the second object on a graphical user interface with an actionable display element from which the second object can be selected for purchase;
• wherein the instructions further cause the system to assess an actual result of the user's movement using the first object and generate a simulation of the user's movement using the second object.