Horse that have not yet won a race have an average GSV of 59.91 [we have a lot of maiden races at this time of year].
Horses that have won only one race have an average GSV of 59.27 with average earnings of $3589.26
Horses that have won only two races have an average GSV of 61.26 with average earnings of $19612.45
Horses that have won only three races have an average GSV of 61.45 with average earnings of $37,442.71
Horses that have won only four races have an average GSV of 61.56 with average earnings of $54,862.27
Horses that have won only five races have an average GSV of 60.51 with average earnings of $45,541.69 [partially explains lower GSV average, low claiming?]
Lots more to do, but results are encouraging so far as an accurate assessor of Genetic Strength.
It should be noted here that there are plenty of exceptions where a horse with a low GSV [say 56 or 52, etc.] beats the pants off a horse with a GSV of 68 or higher so the reader must note we are only talking average scores and the GSV is no magic bullet.
No guarantee given, but if you notice a horse with a high GSV that has a nice running stride or works, then it is quite possible that the horse did inherit its fair share of Genetic Strength and worth a bet in appropriate company.
Best, George