VHSL (Virginia High School League) softball is a fast-pitch game where two teams of nine players aim to score more runs than their opponent over a standard seven-inning game. The team with the most runs after 7 innings, or who is ahead by 10 runs after 5 innings (mercy rule), wins. Key elements include underhand pitching, strict 2hr-15min time limits (no new inning), and mandatory safety rules, such as helmet use.