Panned runner shots- help!

[adam*]

Hi guys,

Just wondering what kind of settings to use to shoot some panning shots of runners? It will be indoor on a track. I'm guessing about 1/60th is sufficent or should I go lower? I may not get too many takes at the shot so I don't want to experiment too much whilst there.

I'm looking for an end result like this:
http://www.illustratedphotography.com/site-images/support-features/technique/athletics.jpg

Thanks alot

Adam

[DC Fan]

Not a runner, but the same general idea:

http://www.kevinlillard.com/racing/20090603a0193.jpg
Camera Model: Canon EOS DIGITAL REBEL XTi
Flash Used: No
Focal Length: 170.0mm
Exposure Time: 0.017 s (1/60)
Aperture: f/5.0
ISO equiv: 1600
White Balance: Manual
Metering Mode: Matrix
Exposure: shutter priority (semi-auto)