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From this information, a pressure index is created, which is intended to measure how aggressively each serve plus one ball was played. For each shot, angles, line proximity, and speed are recorded. Taking this hit for example. Hitting position and ball placement are treated as start and end of a …

From this information, a pressure index is created, which is intended to measure how aggressively each serve plus one ball was played. For each shot, angles, line proximity, and speed are recorded. Taking this hit for example. Hitting position and ball placement are treated as start and end of a vector. It has an angle in relation to a shot straight down the line. To classify how aggressive the shot is, the maximum possible angle was also calculated that would have been possible with the same