Recent content by Chas Tennis

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    what does Don Budge's backhand grip look like?

    To compare single frame on Youtube use the period & comma keys. Always select the video using Alt + Left Mouse Click, othewise the video starts playing. Compare backhands from similar camera angles. Go to impact and single frame back and forth to compare backhands. Compare Don Budge's...
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    One Hand Backhand - Waht Force to Start Forward Swing?

    If the uppermost body rotates with acceleration and the upper arm is left to move as it will, the inertia of the upper arm and racket will cause the chest to contact on the upper arm. Pulling forces from the musculature on the back side of the shoulder area is present too. Recently, we've also...
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    What’s wrong with my FH

    On your forehand, the line between your two shoulders and the line between your two hips move together, there is no separation angle. This prevents your spine and trunk from twisting and adding to your racket head speed and maybe control also. I've posted many times on separation. To single...
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    One Hand Backhand - Waht Force to Start Forward Swing?

    The skeletal display shows Federer's upper arm bone, humerus. separating from his chest earlier than for a chest press technique. Federer uses a different technique for initial forward acceleration. Federer is more like F. Lopez in this regard. This difference has been discussed and...
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    One Hand Backhand - Waht Force to Start Forward Swing?

    I have made my best explanations with illustrations in earlier posts. I did that in posts after post #51. I have repeated in many posts but the basic details are in earlier posts after #51. The idea is to initially use the accelerating turn of your uppermost body and not to use your shoulder...
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    Killing time Soderling style.

    Robin Solerling beat Nadal in a well known French Open match, 2009. https://www.atptour.com/en/news/soderling-shocks-nadal-10-year-anniversary-roland-garros Set 1 2009 French Open. Sets 2 & 3 are also Youtubes. I believe that his forehand was especially strong. The forehand separation...
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    Killing time Soderling style.

    Looks as if Solderling has switched to a one hand backhand. ? 2011
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    One Hand Backhand - Waht Force to Start Forward Swing?

    No. The initial acceleration avoids using the shoulder joint as the uppermost body turns and its acceleration causes the upper arm to be pressed by the chest. Later, before impact, the shoulder joint may move the upper arm off the chest. In other words, it is a two phase forward stroke. I...
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    Serve toss. Which leg do you load?

    Video analyze your serves to answer your questions. To single frame on Youtube, use the period & comma keys. Technique (you need to be using this technique for this video analysis information to apply) High level serve using significant internal shoulder rotation (ISR) for racket head speed...
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    One Hand Backhand - Waht Force to Start Forward Swing?

    I can't tell on that backhand. That is a warm up or practice shot. Chest press is the initial aceleration, it does not have to continue through impact. Not clear for Kolhschreiber. Federer has bent elbow. K's is straight and arm higher = more hand speed. Kolschreiber's scapula is well...
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    One Hand Backhand - Waht Force to Start Forward Swing?

    Compare strokes frame-by-frame on Youtube using the comma & period keys for single frame. Always select Youtube videos by holding down the Alt KEY and Left mouse click. ( otherwise video starts playing) Stop on impact on two or three videos. Compare similar positions of the racket during...
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    Serve toss. Which leg do you load?

    This information with videos shows the motion that leads to Thoracic Extension. Notice that as the head is lowered to its lowest point corresponding roughly to knee bending and 'leg loading'. Look at the timing of the toss and the maximum leg bend. Is loading the leg and its timing...
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    Quarantine Serve Toss Drill. 50 reps.

    Pay attention to the type of serve that you are simulating and the hand path relative to the ball direction You can get a drawing of the tennis court and measure some of those angles as they would be seen from above. Video your swing and compare it to Federer's frame-by-frame and...
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    Backhand Yips

    High Speed Video Feedback Compare your backhands to high level ATP backhands using high speed video and the same camera angles. Use about 240 fps and small motion blur to see the fastest motions of the stroke. For small motion blur, video in bright direct sunlight. Don't use warm up or...
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    Tennis & Coronavirus

    This is my opinion. Can anybody find a reference on how to think about Transmission Routes? Just speculating, find a good analysis When you impact the ball, it puffs off a cloud of dust, dirt and ball lint. If the background is dark, the lighting is good and the court surface is dirty, you...
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