The William Mason High School Marching Band competes in two circuits.
The Mid-States Band Association (MSBA) is a group of high schools in Ohio, Kentucky, and Indiana. The Marching Band usually attends 2-3 MSBA competitions each year that are hosted at local high schools. At these events, each band will perform once. The Marching Band also competes in the MSBA Championship that is hosted at Mason in November each year. The Mason Invitational, hosted by Mason, is also an MSBA event, but Mason performs as an exhibition and is not part of the competition.
The Bands of America (BOA) is a program of Music for All. BOA organizes the fall championships, including BOA Regional, Super Regional, and Grand National Championships. BOA Regional Championships draw up to 35 bands and are one day events with a preliminary competition in the morning and afternoon and a finals competition in the evening. They are held at high school or college stadiums. BOA Super Regional Championships are usually two day events held at world class venues (usually domed stadiums) and draw up to 64 bands. Preliminary performances are spread over two days with finals held the evening of day two. The Marching Band attends a BOA Regional and/or Super Regional competition each year.
The culmination of each performance season is the BOA Grand National Championships held at Lucas Oil Stadium in Indianapolis in November. This event draws approximately 90 bands from across the United States and is widely recognized as the premier marching band competition in the nation. The three day event begins with preliminary competitions held on Thursday and Friday. Approximately 30 bands selected for semifinals will perform in competition beginning on Saturday morning. The top 12 bands selected for finals competition will perform on Saturday evening.
At most competitions, each band is given a 15 minutes time slot to set up, perform, and exit the field.