What is CSI?
CSI is an Elo-based rating that measures relative team strength:
• All teams start at 1500 points
• Points are exchanged based on match results
• Expected outcomes affect point exchange
• Higher CSI = stronger team
How CSI is Calculated
After each match:
• Winner gains points, loser loses points
• Point exchange depends on:
- Match result (win/draw/loss)
- Score margin
- Pre-match CSI difference
- Match importance (World Cup stages)
CSI Formula
K × (Actual - Expected)
Where:
• K = Weight factor (higher for important matches)
• Actual = Match result (1 for win, 0.5 for draw, 0 for loss)
• Expected = Probability based on CSI difference
CSI Tiers
| Tier | CSI Range | Description | |------|-----------|-------------| | Elite | 1580+ | Tournament favorites | | World Class | 1540-1579 | Strong contenders | | Strong | 1500-1539 | Competitive teams | | Average | 1460-1499 | Capable but limited | | Developing | Below 1460 | Underdogs |
Why Use CSI?
• More accurate than FIFA rankings for cup tournaments
• Updates after every match
• Considers opponent strength
• Accounts for margin of victory