Brisnet's SSI figures

Roger · Postby **Roger** » Tue Jun 10, 2008 7:56 pm

It seems that they indicate earnings per start, do any of you know what they are actually. What does SSI stand for? If you haven't looked at the free predigree, race records and inbreeding, you might want to. You can also get free hypothetical matings.

shatanka · Postby **shatanka** » Tue Jun 10, 2008 9:04 pm

yes it means standard starts index (SSI) and performance index (PI) . roger, can you tell me, how to you access the hypothetical matings on brisnet ? i can't find it! lol great tool they opened up with the pedigree and statistics being free huh!

Roger · Postby **Roger** » Wed Jun 11, 2008 7:33 am

Its next to the name and year of birth on my screen. Its fun, I wish I could remember who on this board told us about it so that I could thank them.

Roger · Postby **Roger** » Wed Jun 11, 2008 11:38 am

Thanks, do you have any idea how they get these numbers. Are they based on an average earnings for the year? Something like if the average for the year was $10,000 and a horse earned $5,000 he would have an SSI=0.5.

majxmom · Postby **majxmom** » Wed Jun 11, 2008 2:49 pm

Roger, I think that is based on the average earnings per crop. So if a 1970 horse had a SSI of 1.00, he earned exactly the average for all of the horses of the 1970 crop. That way, you can compare fairly horses from 1970 to horses of 2005, even though some of the upper end purses are much bigger.

shatanka · Postby **shatanka** » Wed Jun 11, 2008 4:56 pm

that's about right maxj...i found this site that explains in detail...

http://www.thoroughbredinfo.com/sirestatistics.htm

Standard Starts Index (SSI). It's based on average earnings per start rather than average earnings per runner, but it also compares the runner's average with that of all other starters in each year (1.00), so an SSI of 2.00 is twice as good as the average.

lots of other good info on there too for explainations!