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Rankings · Ratings · Methodology

What is Elo?

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🔍 How BJJMetrics Elo Rankings Work

Elo is a rating system originally developed to rank chess players, and it's now used across many sports and games.

It calculates a competitor's skill based on match results and the strength of their opponents, using a probabilistic model. The core idea:

At BJJMetrics, we've adapted this system for BJJ, with a few key enhancements:

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Bigger Upsets = Bigger Gains
Winning against a higher-rated fighter earns you more points.
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Expected Wins = Small Gains
Beating someone below your level gives only a small rating boost.
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Event Bonuses
Winning at Worlds or Grand Slams adds extra points to reflect the event's prestige.
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New Fighters Rise Fast
Everyone starts at 1000 and can climb quickly by consistently winning — especially against tough opponents.
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Compare Across Belts and Divisions
Our Elo scores reflect overall competitive strength, making it possible to compare athletes across divisions and belts.

Interactive ELO Calculator

See how ELO ratings change based on match outcomes using the same mechanics as BJJ Metrics

Your ELO You

Win chance 50%
New ELO 1000
Change 0 (0%)

Opponent ELO Opponent

Win chance 50%
New ELO 1000
Change 0 (0%)

Match outcome

Tournament

ELO formula
New ELO = Old ELO + K-Factor × (Actual Score - Expected Score) + Bonus
Win chance = 1 / (1 + 10^((Opponent ELO - Your ELO) / 400)) × 100%
K-Factor = 32 | Bonuses: Regular 0, Grand Slam +30, Worlds +50

Top BJJ Fighters by Elo Rating

# Fighter Elo Team
1 Gabrieli Pessanha De Souza Marinho 3327 Infight Jiu Jitsu
2 Mayssa Caldas Pereira Bastos 2454 AOJ
3 Roberto Godoi 2440 G13 BJJ
4 Wellington Leal Dias 2359 Gracie Humaita
5 Tayane Porfirio De Araujo 2300 Alliance
6 Tainan Dalpra Costa 2230 AOJ
7 Sarah C Firme Galvao 2184 Atos Jiu Jitsu
8 Nicholas De Barcellos Meregali 2149 Renzo Gracie Academy
9 Marcus Vinicius Oliveira De Almeida 2147 CheckMat
10 Beatriz De Oliveira Mesquita 2105 Gracie Humaita
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Division Leaders - Adult Male Black Belt

Highest ELO-rated fighter in each division

Division Fighter Elo Rating Team
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