Putting Timing (SAM Puttlab)

Rhythm and timing are generally guiding human movements. Consistent rhythm and timing are crucial for high consistency of the complete stroke. Proper rhythm and timing are the basic principles in skilled movement performance.
The graph shows the time of backswing, the time from beginning of forward swing to impact, and the time of the complete forward swing in bar charts. Time to impact is also marked with a horizontal line inside of the forward swing bar. The grey areas indicate the preferred range of the timings of the PGA Tour sample. The average time values are shown below the bars.

Backswing time
Backswing time should be generally about 100-200 ms shorter than forward swing time. Backswing duration of 600-700 ms is in the preferred range of PGA Tour Pros.

Time to impactTime from beginning of forward swing to impact is approximately half time of backswing time (see 8.3) which would mean 300-350 ms.

Forward swing timeForward swing time should be generally about 100-200 ms longer than backswing time. The putter swinging on its own has a cycle time of about 950 ms. Forward swing time is approximately in this range. Forward swing duration of 800-900 ms is in the preferred range of PGA Tour Pros.

The absolute times can differ between different stroke types, more aggressive (committed) players generally show shorter times and more cautious (anxious) players show longer times. However, rhythm and timing (the relation of the components) should then still be in a preferred range (see 8.3). In other words, the complete stroke can be somewhat slower or faster, but rhythm and timing are always the same range.

[Source] SAM Puttlab - Report Manual