A Matchmaking game on Challengermode is a head-to-head match. It’s player vs. player or team vs. team. Matchmaking is free-to-play right now.
How to join the Matchmaking Solo Queue
Click on the Matchmaking menu item in the left sidebar under League of Legends or Counter-Strike: Global Offensive depending on what game you play.
By joining the Solo Queue, you will get matched up with anyone else who is also queuing at the same time:
Depending on the time of day, it can take anywhere from a few seconds to 30 minutes (sometimes more) to find a match. Once a Matchmaking game is found you will be alerted with a sound:
You must accept the Challenge within 30 seconds. By accepting you will start the game and enter the lobby.
In the Matchmaking Lobby you will be given 10 minutes to enter the League of Legends client and start playing with the Tournament Code.
By entering the queue and accepting a matchmaking game, you commit to starting the game within 10 minutes. Not joining within 10 minutes will result in an automatic loss.