5-Round Swiss Tournament Elo & Performance Rating Calculator
Test how different 5-round scores (e.g. 3.5/5 vs a higher-rated field) change your official FIDE Elo rating under K=10, K=20, or K=40.
Change your starting rating, K-factor, average opponent rating, or total points scored to see instant FIDE logistic curve updates.
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Frequently Asked Questions
Which FIDE K-factor should I enter?
Use K=40 for new players under 30 rated games (or juniors under 18 below 2300), K=20 for players below 2400 Elo, and K=10 once you have reached 2400+.
Can I expand this to 7 or 9 tournament rounds?
Yes — click Open in Arte Sheets to open this live table in a new browser tab and add individual rows for Rounds 1 through 9.