Current tennis thwack champion: n/a
Each competitor has three attempts to hit a tennis ball in the air for the longest duration. The time is recorded from when the ball strikes the racquet to when it hits the ground. The longest duration from three hits is the qualifying time.
A valid hit must not strike any other object, such as a tree, between being hit and landing on the ground.
If two qualifying times are identical the second fastest time (then third fastest) will be used as a tie-break. If all three times are identical the position and points shall be shared.