T There are hundreds of thousands of data items are collected each year. There is no possible way to cross check that. I am not implying that the data is corrupt. I am restating what Pedro said was Theo's practice regarding pitch velocity. That data was corrupted. I am not implying it. If that data is official data, it is worthless. I know that you are a stat head and that any questioning of the stats is viewed as an unfathomable attack. If I was as big a stat head as you, I would be concerned about the data collection process and data integrity. Double checking? Do you know if there is even a process for that and how it works? As I said, I think it would be impossible to double check given the volume of data. I felt much better about sk's explanation that much of it is done by independent third parties. That's what would need to be done to preserve the integrity and promote consistency in the data collection process. Without consistency and integrity, the data isn't worth spit. I'd like to know more about how the data is collected and who collects it. You may take the information at face value, but I don't. As a tax attorney for more than 30 years, I have seen government tax revenue projections of law changes that I knew were so inaccurate as to be worthless, and I know that they didn't pick the numbers out of the air, but they will never share their assumptions and calculations when making those projections. They rarely if ever turn to the business community to collect relevant data. So, excuse me if I am skeptical of things that others accept as true and accurate. I am not trashing your beloved stats, but just questioning whether an aspect of the science might need attention.