SAM PuttLab - Reports Manual - Science & Motion Golf
SAM PuttLab - Reports Manual - Science & Motion Golf
SAM PuttLab - Reports Manual - Science & Motion Golf
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<strong>SAM</strong> <strong>PuttLab</strong> - <strong>Reports</strong> <strong>Manual</strong><br />
2.11 Putter head rotation<br />
This graph shows the putter face angle at different positions in the forward<br />
swing: At the start of the forward swing (right), at impact (middle) and at<br />
the end (left) of forward swing. The red lines indicate the deviation of the<br />
putter angles from the square alignment.<br />
Under the putter face pictures the corresponding angles are shown. In this<br />
case the putter face is open 6.8 degrees at start of forward swing. (Because<br />
the putter face was open 0.6 degrees at address, it was opened 6.2 degrees<br />
during the back swing.)<br />
At impact the putter face is still slightly open 0.2 degrees. The value above<br />
the blue arrow shows the corresponding closing of the putter face to impact<br />
of 6.6 degrees. From impact to end the club face is closed another 7.0<br />
degrees and is then 6.7 degrees closed at the end of forward swing.<br />
In the middle of the graph the face rotation for a fixed area of +/- 10 cm<br />
before and after impact is shown. The rotation inside of this fixed area is<br />
independent of the length of the putter path and allows to directly compare<br />
the rotation of putts with different path lengths. In this case the rotation<br />
inside of 10 cm before impact amounts to 1.6 degrees and the rotation<br />
inside of 10 cm after impact amounts to 1.2 degrees.<br />
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