"Regional qualifiers" refers to a process or competition that determines which individuals or teams from a specific region are eligible to participate in a larger event or competition. Full definition
Between August and October, talented Street Fighter V hopefuls will participate in the Red Bull Proving Grounds regional qualifiers in Orlando, Atlanta, Philadelphia, Chicago, Houston, Los Angeles, San Francisco, Seattle, Toronto, Montreal, Vancouver and Online. (digitalchumps.com)
The event is the climax of the competition season — teams have been competing in regional qualifying events to secure themselves a place where they would compete against the top 40 teams from all over the country. (education-today.co.uk)
Merrill, also known as «Tinman,» didn't win the Young Guns regional qualifying round at St. Paul - but that didn't stop his quest to make it to his first SEMA show. (streetmachinenationals.net)