I’m told that it’s RNG
This is a valid claim. Perhaps game designers can explain it.
Whenever I join for late for registration which is usually late, I’m placed in 31-40 column.
After a solo, it CONSISTENTLY places me at the end of the solos. I often post the solo early and then everyone who was ranked above in registration passea me with their solos. Or I solo a little later,
And similar low placings, or right at the back end.