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MLB
The trajectory shows projected distance and where the ball lands relative to the outfield wall at that point in the park. The same struck ball is a home run in one venue and a fly out in another, and the fence distance and height at that specific angle are usually the reason. Changing temperature, wind or altitude re-runs the flight so you can see how much each one is worth.
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Sign up →A batted-ball flight model: give it an exit velocity, a launch angle and a direction, and it traces how far that ball carries in a chosen park under chosen conditions.