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| Flat Serve |
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A flat service is hit without spin and follows a low, straight trajectory. Given the high risk of hitting the net, it is generally better-suited for first serves.
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| Follow-Through |
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Where a player swings the racquet through in the direction of the stroke, even after the ball has been played. The follow-through affects the length, direction and speed of the ball.
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| Foot Fault |
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An error occurring when a player steps onto or over the baseline, sideline or the center mark when serving. Foot faults also occur if the player fails to serve from a static position.
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| Forecourt |
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The front part of the tennis court, the ideal position for controlling a point, is between the net and the service line.
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| Forehand |
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A ground stroke played by left-handers to the left of the body, and by right-handers to the right.
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