The “Heroes of the Storm” North America Spring Regional kicked off Saturday in Los Angeles, featuring the eight best teams in the multiplayer online battle arena game competing for a prize pool of $100,000. Two teams will advance to the “Heroes of the Storm” Spring Championship in Seoul with a prize pool of $500,000. The action began at 1 p.m. EST.

Saturday opened with group play among the eight teams. Group A consists of Team Naventic, Tempo Storm, Panda Global and King Blades Alpha. Cloud9, COGnitive, Team Blaze and Team Nom are in Group B. In Goup A, the first match-ups are Team Naventic against King Blades Alpha and Tempo Storm against Panda Global. First match-ups in Group B are Cloud9 against Team Nom and COGnitive against Team Blaze.

Team Naventic and Cloud9 advanced to Los Angeles after placing first in the qualifying rounds. The weekend’s event could shed light on which team is considered North America’s best. Cloud9 had a strong 2015 that included finishing in first at the world championship at Blizzcon 2015 in November. The team took home $200,000, but has not lived up to expectations with disappointing results in China and the Heroes Rising event, theScore eSports reported. At the Heroes Rising event that took place in January, Cloud9 lost to Team Naventic. While Team Naventic and Cloud9 are favored to advance to the finals and qualify for the spring championship in Seoul, there’s always the potential for an upset.

Teams from around the world are competing in regional events to advance to the “Heroes of the Storm” Spring Championship that begins April 1. North America, Europe, China and Korea will each send two teams to the event. Regional events in Latin America, Southeast Asia, Taiwan and Australia/New Zealand will determine which team from that area will head to Seoul.

You can view the “Heroes of the Storm” North America Spring Regional below.

Watch live video from Heroes of the Storm on