League of Legends 5v5 Matchmaking & Elo Tracker

Problem Statement

Custom League of Legends groups often struggle to create fair 5v5 teams. RiftBalance turns replay and player data into a lightweight rating and matchmaking workflow.

Performance-Based Elo System

• Extracts custom match data from League of Legends replay files.
• Calculates player performance scores using stats such as damage, KDA, gold earned, and vision score.
• Adjusts player Elo/MMR using formulas adapted from TrueSkill 2.
• Tracks rating history and match data in Google Sheets.

Matchmaking Features

• Generates balanced 5v5 teams for 10-player custom lobbies.
• Supports role-based matchmaking for players with fixed or preferred roles.
• Helps reduce rating imbalance before each custom game.

Statistics (Google Sheets)

• Tracks Elo/MMR changes over time for each player
• Player Synergy Matrix showing win rates for every teammate pairing
• Visualizes Elo progression through automated graphs