ITF Technical Skills and Stroke Mechanics 2 — Questions and Answers
Question 1: Which phase of the serve motion is commonly referred to as the 'back-scratch position'?
- The initial stance before the toss
- The trophy position at peak backswing
- The racket drop behind the player's back before the upswing (Correct answer)
- The follow-through after ball contact
Correct answer: The racket drop behind the player's back before the upswing
The back-scratch position describes the moment when the racket drops behind the player's back and the elbow points upward, creating maximum shoulder rotation before the upward swing to contact.
Question 2: What is the primary biomechanical advantage of using a looped backswing on a forehand groundstroke?
- It shortens the swing path to improve accuracy
- It allows more time to prepare at the net
- It generates racket-head speed through momentum built in the loop (Correct answer)
- It keeps the racket face open at contact for slice
Correct answer: It generates racket-head speed through momentum built in the loop
A looped backswing builds racket-head speed through the continuous circular momentum of the swing, allowing players to generate more power with less muscular effort than an abrupt straight backswing.
Question 3: In ITF coaching, what is the key technical difference between a slice backhand and a topspin backhand?
- Slice uses an open racket face moving downward through the ball; topspin uses a closed face moving upward (Correct answer)
- Slice is hit with a Western grip; topspin uses a Continental grip
- Slice requires a two-handed grip; topspin is always hit one-handed
- Slice produces more power than topspin due to a longer follow-through
Correct answer: Slice uses an open racket face moving downward through the ball; topspin uses a closed face moving upward
A slice backhand is produced by swinging with an open racket face downward and through the ball, imparting backspin, while a topspin backhand uses a closed or neutral face moving upward to brush the back of the ball.
Question 4: When coaching a player on the overhead smash, the ITF recommends orienting the body in what way relative to the incoming ball?
- Facing the net squarely to maximize forward momentum
- Sideways to the net with the non-dominant shoulder pointing toward it (Correct answer)
- Facing away from the net to enable a full shoulder turn
- Parallel to the baseline to track the ball more easily
Correct answer: Sideways to the net with the non-dominant shoulder pointing toward it
Turning sideways with the non-dominant shoulder toward the net allows the player to prepare a full shoulder turn, track the ball above and slightly in front of them, and produce maximum power similar to the serve motion.
Question 5: What is the purpose of 'pronation' in the service motion according to ITF technical coaching?
- To slow the racket head down before contact for control
- To rotate the forearm so the racket face moves from edge-on to flat at contact, accelerating racket-head speed (Correct answer)
- To keep the wrist locked and stable through the impact zone
- To assist in generating topspin on a kick serve only
Correct answer: To rotate the forearm so the racket face moves from edge-on to flat at contact, accelerating racket-head speed
Forearm pronation during the serve rotates the racket face from edge-on to flat (or past flat), dramatically accelerating the racket head through the contact zone and is the primary source of speed in the serve.
Question 6: In ITF coaching terminology, what does 'unit turn' refer to in the context of groundstroke preparation?
- The coordinated rotation of the shoulders and hips together to prepare for a groundstroke (Correct answer)
- The pivot step taken with the outside foot to square the stance
- The movement of the elbow away from the body during the backswing
- The synchronized racket and ball-toss preparation for the serve
Correct answer: The coordinated rotation of the shoulders and hips together to prepare for a groundstroke
A unit turn is the simultaneous rotation of both the shoulders and hips as a single unit to prepare for a groundstroke, enabling early racket preparation and improved body rotation through the shot.
Question 7: Which of the following best describes the 'windshield wiper' follow-through on a modern forehand?
- The racket finishes high above the left shoulder for a right-hander
- The racket sweeps across the body from low to high and then rolls over, finishing beside the player's right hip for a right-hander (Correct answer)
- The hitting arm extends straight toward the target at the end of the swing
- The racket wraps around the non-dominant shoulder in a straight line
Correct answer: The racket sweeps across the body from low to high and then rolls over, finishing beside the player's right hip for a right-hander
The windshield wiper follow-through involves the racket brushing steeply upward through contact and then rolling over, finishing beside the dominant hip, which maximizes topspin and helps the player control the ball's trajectory.
