Sportz

Today when contemplating Playwright i noted one 2nd up run for a 9th. It turned me off instantly. I'm a firm believer in horses 1st, 2nd , 3rd up form is usually always precedented throughout its racing career. Most of the time i understand you need to check the particular class it was in when failing but i didnt go that far as the race was full of up and comers & felt going in with any risk wasn't worth it despite trying to justify where / when it ran 9th.
My question is when you do the ratings is that taken into account? Do you keep data suggesting that this 1-3 up form is playing any negative part in the ratings at all?