Fly Casting: Analyzing Straight Line Rod Tip Path and Shoulder-Elbow-Wrist Paths during the Stroke

here’s a more than interesting set of video-still overlay images of some of the World’s top distance casters created by Dirk le Roux who graciously accepted  to share his findings here. this is a real treat for anyone interested in fly casting mechanics. as mentioned below, this was a study on the final ‘up’ lift of the wrist common to many casters but it tells us a lot more than that.


“Watching video on distance casters I’ve been intrigued that often a seemingly small down-up flick of the wrist could be seen right around final rotation on the forward cast. Sometimes more like just an “up”. Thing is it’s hard to get a handle on what’s happening just by watching, even in slow motion. Trying to analyse that I started tracing the arm configuration and spline path of the wrist, and while I was at it also the elbow and shoulder paths, at various intervals of various casts.

A bit of explanation first
• The red and blue hopperleg graphs are back and forward positions respectively
• The spline* paths are generally: lower one the elbow, middle one shoulder and top one the wrist trace, except in Paul’s case.. 
• You can see which part of the spline paths are back or forward by checking which of the blue or red hopper-legs they correlate with
• I included wrist angles also (show rotation timing)
• All the figures containing interrupted line hopper-legs have been taken at exactly regular intervals, with the interrupted positions in between the regular solid line ones. From this some idea of speed at certain stages can be gleaned”

*  (spline curve ) a continuous curve constructed so as to pass through a given set of points and have a certain number of continuous derivatives.

Lasse Karlsson
Lasse Karlsson
Lasse Karlsson
Lasse Karlsson
Steve Rajeff
Steve Rajeff

rajeff 2

Paul Arden
Paul Arden
Paul Arden - Wrist Path
Paul Arden – Wrist Path
Bart De Zwaan
Bart De Zwaan
Bart De Zwaan
Bart De Zwaan
Fredrik Hedman
Fredrik Hedman
Stefan Siikavaara
Stefan Siikavaara

and maybe what it’s mostly telling us is no two people cast the same despite what we might think…
thanks Dirk !

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