Exception Proves the Rule
Just to clear up two questions that might arise from my last post on Galileo’s conditions of possible effectiveness (let’s call it CPE) with mares that have Sharpen Up in their ancestries.
First, that post established that Galileo’s probability of siring superior runners out of mares that descend from Sharpen Up through either Kris or Diesis is at least .28. Doubly Sure, the dam of Kris and Diesis, seems to be the key factor, especially considering that Cape Blanco (G1) is out of a daughter of Doubly Sure sired by Presidium, by General Assembly rather than Sharpen Up. That leaves open the question how well Galileo might handle mares in descent of Doubly Sure through her daughters, and I would have mentioned it except that Galileo has had only one such mare.
Second, I mentioned that Galileo had sired a superior runner out of only one mare of the 29 that descended in some way from Sharpen Up, but not through Kris or Diesis. So, the problem is, if descent through Kris or Diesis is a CPE governing Galileo’s relation to Sharpen Up, how can 16.5-f Marathon S. (Sandown, 2010) winner King of Wands (Galileo ex Maid to Treasure, by Rainbow Quest and an image in the Tarot, I believe) be explained? His third dam is by Sharpen Up.
The answer is that, even if a mare fails to fulfill a CPE relating to one of her ancestors, she may still fulfill other CPEs that control a sire’s potential. Now, Galileo doesn’t have a great strike rate with Rainbow Quest–only 4/24–and his record with Blushing Groom is 9/75. What is more likely decisive in the ancestry of King of Wands’ dam is her broodmare sire Indian Ridge, with which Galileo has a strike rate of 4/11. Moreover, his overall record with Indian Ridge’s sire Ahonoora is 6/18. That’s a superior-runner probability of at least .33.
It’s clear, then, that Galileo’s CPE relating to Indian Ridge and Ahonoora, whatever it might be, is far less stringent than his CPE relating to Sharpen Up. Furthermore, because of Sharpen Up’s generational distance in this case, his normal negative effect on foals by Galileo (when not descending through Kris or Diesis) is much less likely to be expressed than the highly favorable effect associated with Indian Ridge.
Discovering the conditions of possible effectiveness is a critical function of pedigree interpretation, and, while it can only yield probabilities comparable to those of, say, short-term weather forecasts, those probabilities are a lot more reliable than reading tea leaves, questioning the Ouija, or trusting in the make-believe deficit reduction in Paul Ryan’s budget proposal.
UPDATE: In the Tarot, the King of Wands denotes the ability to persevere toward a goal, overcoming all obstacles by exceptional means. Seems appropriately named.
So clearly, to make the best potential match the more you know about how each sire and/or dam interacts with the the rest of the names in the pedigree and to what degree.
That’s a lot of data and understanding of that data–an interesting mix of numbers and art.
April 22nd, 2011 at 6:27 amYes, Greg, assembling the data is one thing. The interpretive challenge the data pose is another, and the latter is the more challenging of the two.
April 23rd, 2011 at 6:41 am