Rob, Let me add a comment in respect to Vic speed maps. As near as I can determine, the source is a calculation of the km/hr that a dog recorded previously over the sectional distance at a given track. Whether that means the dog's best sectional performance or the average of a few is unknown. I have always used an average of the dog's last 10 starts. Sometimes that agrees with the Watchdog, sometimes not, so I have my suspicions. Either way, neither method is subjective but it does depend on how good your source material was. PS GRV is also risky in that it publishes sectionals for Handicap races without really highlighting the fact that they cover different distances. The same problem applies to the right hand column where a dog's Best is actually over a Handicap (ie shorter) distance but is not so flagged.
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