How FIDE Ratings Work: Everything You Need to Know
A deep dive into the FIDE rating system — how it's calculated, when it updates, and how to track your international chess rating.
The FIDE rating system is the gold standard for measuring chess strength internationally. Managed by the Fédération Internationale des Échecs (World Chess Federation), it's the rating that matters most at the highest levels of competition. Here's everything you need to know about how it works.
The Basics of FIDE Ratings
FIDE maintains three separate ratings for each player:
- Standard (Classical) — For games with longer time controls (typically 60+ minutes per player)
- Rapid — For games with time controls between 15 and 60 minutes
- Blitz — For games with time controls under 15 minutes
Each rating is calculated independently, so you could have a very different Standard rating compared to your Blitz rating.
How FIDE Calculates Rating Changes
The FIDE rating formula is based on the Elo system, created by Arpad Elo. After each rated game, your rating change is calculated as:
Rating Change = K × (Actual Score - Expected Score)
The Expected Score is determined by the rating difference between you and your opponent. If you're rated 200 points higher, you're expected to score about 0.76 out of 1. If the ratings are equal, each player is expected to score 0.5.
K-Factor in FIDE
FIDE uses different K-factors depending on the player:
- K = 40 for new players until they complete 30 rated games
- K = 20 for players who have never reached 2400
- K = 10 for players who have reached 2400 at any point
This means established top players see smaller rating fluctuations, while newer players' ratings adjust more quickly.
When Do FIDE Ratings Update?
FIDE ratings are published on the 1st of every month. Tournament results must be submitted by the federation and processed before the publication date. This means there can be a delay between playing a tournament and seeing your rating change.
This monthly cycle is why tools like ChessAlerts are valuable — instead of manually checking the FIDE website on the 1st of each month, you get an instant notification the moment your rating is published.
Getting Your First FIDE Rating
To obtain an initial FIDE rating, you need to:
- Play in FIDE-rated tournaments
- Score at least 1 point against rated opponents
- Play a minimum number of games against rated opponents
Your initial rating is calculated differently from subsequent ratings, using a special formula designed to estimate your strength from a limited number of games.
FIDE Rating Categories
FIDE assigns titles based on rating achievements:
- Candidate Master (CM) — 2200+
- FIDE Master (FM) — 2300+
- International Master (IM) — 2400+ (with norms)
- Grandmaster (GM) — 2500+ (with norms)
These titles are for life — once earned, they can't be taken away even if your rating drops.
Tracking Your FIDE Rating
The official FIDE rating list is available at ratings.fide.com. However, checking manually every month is tedious. ChessAlerts monitors the FIDE database and sends you a WhatsApp, Telegram, or email notification the moment your Standard, Rapid, or Blitz rating changes. It's the simplest way to stay informed about your international rating.