YankeeJim: So in my case where I had about 490 RRs in as a TL, out of those the 200 worst were taken? The saturation makes sense because the average is dropping quite fast with meh scores.
Exactly! So you could have had some 70's or even an 80 in there from an UEL tourn. Maybe you played 'tough it out'.
Anyway - being unsaturated - you hadn't had a chance to kill any of those high outliers. Same as me.
Now suddenly all the low scores have been excluded - lots of them. You're left with 200 scores - maybe with a low of about 57, a lot in the 57 to 64 range, and then the smattering of high rounds above that which we are killing off now as we replace the low scores that were removed.
You can have an ugly round and still see your average plummet.