Thanks jfc but I don't think it is the rail position. Sportcolour state they adjust their sectionals for such things and going back to my example the difference in times was 1.37secs therefore the rail would have to be 27.4m out for the day.

La Mer it seems our track Par Time for 1400m at Rosehill is similar (mine 83.2s) - Depends on the class you choose to take average for.

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Regards,
Pete