It's possible to increase a rating from 1000 to 3000 in 2 days.
It's not possible to increase a skill level from 1000 to 1492 in 2 days.
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New or inactive accounts can easily contain two important elements: the player is underrated, and has a high RD due to inactivity (meaning they can gain 100s of points per game for the first few games).
Is it possible/probable that a player's rating can go from 1000 to 1492 in two days?