Win Probability and Gold Difference powered by AWS

The "Win Probability" feature for League of Legends (LoL) esports broadcasts, developed in collaboration between Riot Games and Amazon Web Services (AWS), is an exciting application of machine learning in gaming. This feature analyzes key data points throughout gameplay to predict a team's chances of winning in real-time, enhancing the viewing experience for fans.

To develop and deploy the Win Probability feature, Riot Games worked with AWS to leverage in-game data and make real-time predictions using Amazon SageMaker. The process involves:

1. Data Collection: Utilizing LoL Live Stats to continuously stream data from every game in the tournament as it's broadcast.

2. Data Analysis: Evaluating various data points to track performance across individual players and overall team progress, including factors like gold accumulation, downtime, and unique gameplay events such as Elder Dragon kills.

3. Model Training: Using historical data from the offline database to train the machine learning model.

4. Real-time Predictions: Generating new predictions for every second of gameplay.

5. Deployment: Implementing the model to provide live insights during broadcasts.

6. Continuous Improvement: Regularly training the model with current data and using Amazon SageMaker to identify and compensate for data drift, ensuring the predictions remain accurate as the game evolves.

The collaboration between Riot and AWS resulted in a self-serve machine learning workflow that allows Riot's data scientists to focus on data exploration, modeling, and experimentation while ensuring accurate and reliable scaling.

For your presentation on AWS, you could highlight how this project demonstrates the power of cloud computing and machine learning in enhancing real-time sports analytics. It showcases AWS's capabilities in handling large-scale data processing, machine learning model deployment, and real-time predictions, which are applicable across various industries beyond gaming.
Sources
Riot Games and AWS bring esports ‘Win Probability’ stat to 2023 League of Legends World Championships broadcasts | AWS for Games Blog