Chess.com and Lichess ratings are not one number
A 1600 on one site is not a 1600 on the other. Chessigma imports a username, not a converted Elo. Compare habits inside one pool.
Read colour, clock, and opening against your own games on that site. Cross-site rating gaps will invent a crisis that is just two rating lists.
Two corpora, two questions
Blitz on Chess.com and rapid on Lichess are different sports even before the rating formula. Import the handle you will play on this week if the question is what to drill tonight.
Chessigma will not merge those files into a fake universal strength. That would be the engine product talking.
Do not chase a number across sites
A jump after you switched sites is often the pool, not your openings. Open the games the report named before you rewrite a repertoire.
Frequently asked questions
Can I import both?
Yes, as two histories. Do not average them into one DNA headline.
Which site should I treat as truth?
The one where you play rated games you care about. Vanity ratings on the other site are a hobby.
Chessigma imports public Chess.com and Lichess history and reports repeated choices — not engine grades. Import your games · Methodology