Analytics preferences

Allow privacy-masked PostHog analytics and session replay so we can see which parts of the reference are useful and where people get stuck. We never send searches, route identifiers, or form contents. Vercel's anonymous traffic and performance measurement remains active either way.

jiu-jitsu reference

Athletes Events Organizations Matches Knowledge Graph About Support

jiu-jitsu reference

© 2026 Jiu Jitsu Reference. All rights reserved.

Apple, the Apple logo, and App Store are trademarks of Apple Inc., registered in the U.S. and other countries.

Privacy Terms Support

John Palaiologos ("Greek Emperor") vs Christiano Mareira | Jiu-Jitsu Reference

Matches/Dec 23, 2017

John Palaiologos ("Greek Emperor") vs Christiano Mareira

Submissionism 2

John Palaiologos ("Greek Emperor")“Greek Emperor”

versus

Christiano Mareira

Match result

Draw

Winner: Draw or unknown
Method: Draw
Stage: Not recorded
Weight class: 83.9 kg

Event context

Date: December 23, 2017

Location

Athens, Greece

Organization

Division

83.9 kg