Kill-ELO — PvP Elo System & Rank Tagger

Universal ELO
A competitive ELO ranking system for PvP — fully client-side and usable on almost any server.

Every player starts at 1000 ELO. Kills earn points, deaths cost points — and the stronger your opponent, the more ELO you gain. The mod simply reads kill messages from chat and calculates everything locally. It never touches gameplay, so it’s allowed by anti-cheats.

Features
Real ELO system — chess-based: evenly matched opponents give ±25, beating a stronger player up to +50, beating a weaker one down to +5.
8 ranks — Bronze, Silber, Gold, Platin, Diamant, Meister, Champion and Legend (4000+).
Live HUD (bottom-right) — your ELO, rank, global placement, K/D and current killstreak, always on screen.
Anti-farming — repeatedly killing the same player gives diminishing rewards (100% to 50% to 25% to 0%).
Killstreak bonus — 5/10/20 kills without dying grant +10/20/30% ELO.
New-player protection — beginners only lose half ELO at first.
Server-wide leaderboard — the mod tracks every player that appears in kill messages.
Commands
Command    Function
/elo    Your profile: ELO, rank, placement, kills, deaths
/elo <player>    Another player’s stats
/elotop    Top 10
Compatibility
Client-side — install it only on your client; it works on any server (vanilla-compatible).
Forge for Minecraft 1.21.1 and 1.21.11.
Recognizes standard death messages. Servers with custom formats may need a pattern added.