About pairs since there's only have one stage left.
There are 10 pairs who had only one stage so not everyone gets a second stage. There are also two pairs from the national team who didn't take part in the series and might receive a bye.
B/K, O/G, A/B and Me/Ga are safely at nationals.
M/E, M/G, ShCh/P and Ch/Ya must be safe unless something very unusual happens.
The last two spots (in case Khabibullina/Knyazhuk and Kadyrova/Mironov have a bye) must be between Blinnikova/Karpov, Moskaleva/Rodzyanov and Khodykina/Butenko. The triple tie is very possible.
I don't think Shegai/Shaderkov with 18 points and low scores have a chance.
It's also possible that Kh/K or K/M show up at the last stage and ruin the points for the other contenders.