I really don't understand TT scoring
I usually hover around 390-430k which is enough to get me promoted to rank 6 but demoted to 5 again. One time I did TT, picking the bottom option and not using any item to help, I suddenly achieved 490k. I lost 2 of the races, and only have a couple umas placed 2nd and 3rd. I never reproduced that score again for the next 2 weeks. Still don't know what happened.