Easier to win with black rather than white
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According to your game statistics, you played 54 games of rapid in total, comprising 27 games of each colour.
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Out of these, as White, your win/draw/loss (W/D/L) numbers are 17/1/9, and as Black, they are 18/3/6. It appears almost even.
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Note that it's just a slight first-move advantage for White but for the vast majority of players on this site, this is pretty much negligible (and this advantage often evaporates easily early in the game)
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(And yes, I am among this vast majority)