UKD Rating Calculator

Q: When are UKD ratings updated?

UKD ratings are updated by the Turkish Chess Federation (TSF) after tournament results are processed. Unlike FIDE ratings, UKD updates can occur more frequently.

Calculate your Turkish Chess Federation National Strength Rating (UKD) change based on your tournament results.

How to Calculate UKD?

Go to the calculator tool and select the UKD Calculator tab.
Enter your current UKD rating. The K-factor is automatically determined based on your rating range.
Add your opponents' ratings and game results (Win/Draw/Loss).
You can also load opponents automatically via a Chess-Results tournament link.
Click "Calculate" to see your new UKD rating.

UKD K-Factor Table

In the UKD system, the K-factor is automatically determined based on your current rating range. Unlike the ELO system, the UKD K-factor decreases as your rating increases.

UKD Rating Range	K-Factor
1000 - 1299	K = 30
1300 - 1599	K = 25
1600 - 1999	K = 20
2000 - 2399	K = 15
2400+	K = 10

Calculate your UKD rating change now.

Calculate UKD

Frequently Asked Questions

What is UKD?

UKD (Ulusal Kuvvet Derecesi / National Strength Rating) is the national rating system used by the Turkish Chess Federation. It uses a similar formula to FIDE ELO but has different K-factor rules.

What is the difference between UKD and ELO?

UKD is a Turkey-specific national rating system, while ELO is FIDE's international rating system. Both use the same basic formula but have different K-factor rules.

When are UKD ratings updated?

UKD ratings are updated by the Turkish Chess Federation after tournament results are processed. Unlike FIDE ratings, UKD updates can occur more frequently.