Caliber
Terms
These terms cover the Caliber website and the Windows app you download from it. Last updated 28 September 2026.
What you are getting
Caliber is a fan-made desktop tool that estimates your team’s win probability from a League of Legends draft. The number is an estimate. It is not a promise about the outcome of a game. The download asks Caliber’s server for the ranks and champion records in that game. The draft read stays on your PC.
Riot Games
Caliber is not endorsed by Riot Games and does not reflect the views or opinions of Riot Games or anyone officially involved in producing or managing Riot Games properties. Riot Games and all associated properties are trademarks or registered trademarks of Riot Games, Inc. You are responsible for using Caliber in line with Riot’s terms.
The download
The app is provided as-is, without a warranty. We may change or remove the download. Do not use Caliber to cheat, to disrupt a game, or as a gambling product.