The Pac-12 Conference is a collegiate athletic conference that operates in the Western United States, participating in 24 sports at the NCAA Division I level. Its football teams compete in the Football Bowl Subdivision, the highest level of college football in the nation.
The Great Northwest Athletic Conference (GNAC) is a college athletic conference affiliated with the National Collegiate Athletic Association (NCAA) at the Division II level. It has historically operated in the northwestern United States, but also includes schools in Alaska, Montana, and British Columbia.
The Mountain Pacific Sports Federation (MPSF) is a college athletic conference with members located mostly in the western United States, although it now has members as far east as Pennsylvania. The conference participates at the NCAA Division I level, primarily in Olympic sports that are not directly sponsored by a school's home conference.
The Big West Conference (BWC) is an American collegiate athletic conference whose member institutions participate in the National Collegiate Athletic Association's Division I. The conference was originally formed on July 1, 1969, as the Pacific Coast Athletic Association (PCAA), and in 1988 was renamed the Big West Conference. The conference stopped sponsoring college football after the 2000 season.
The NCAA Men's Water Polo Championship is an annual tournament to determine the national champion of NCAA men's collegiate water polo. Beginning in 1969, it has been held every year except 2020, when it was postponed to March 2021 because of the COVID-19 pandemic. With a limited number of NCAA water polo programs at the national level, all men's teams, whether from Division I, Division II, or Division III, are eligible to compete each year in the National Collegiate tournament. The tournament was expanded from a four-team bracket in 2013 by adding two play-in games that are contested by the bottom four seeds, effectively creating a six-team bracket with a first-round bye for the top two teams. This makes it the sport with the fewest teams reaching the NCAA tournament; this is because there are only 43 men's water polo teams between all three NCAA divisions.
The NCAA Women's Water Polo Championship has existed since the 2001 season. Seven conferences have teams competing in women's water polo: the Big West Conference, the Collegiate Water Polo Association (CWPA), the single-sport Golden Coast Conference, the Metro Atlantic Athletic Conference (MAAC), the Mountain Pacific Sports Federation (MPSF), the Southern California Intercollegiate Athletic Conference (SCIAC) and the Western Water Polo Association (WWPA). Some teams compete at Division III either as members of the Southern California Intercollegiate Athletic Conference or independently. Teams qualify by either winning their respective conference tournament or receiving one of the few at large bids available. Unlike most NCAA sports, only one National Collegiate championship is held each season with teams from Division I, Division II, and Division III competing together.
The California Collegiate Athletic Association (CCAA) is a college athletic conference affiliated with the National Collegiate Athletic Association (NCAA) at the Division II level. All of its current members are public universities, and upon UC San Diego's departure on July 1, 2020, all are members of the California State University system.
The Western Football Conference was an NCAA Division II scholarship-awarding football conference that existed from 1982 to 1993.
The Collegiate Water Polo Association is a conference of colleges and universities in the Eastern United States that sponsor 19 men's teams and 17 women's teams that compete in varsity water polo. The winners of the conference tournaments earn one of the four spots in the NCAA Men's Water Polo Championship and one of the eight spots in the NCAA Women's Water Polo Championship. The CWPA sponsors club team competition in 17 men's divisions and 13 women's divisions across the United States.
The UC Santa Barbara Gauchos are the intercollegiate athletic teams who represent the University of California, Santa Barbara. Referred to in athletic competition as UC Santa Barbara or UCSB, the Gauchos participate in 19 NCAA Division I intercollegiate sports with the majority competing in the Big West Conference. UCSB currently fields varsity teams in 10 men's sports and 9 women's sports.
The UC San Diego Tritons are the intercollegiate athletic teams that represent the University of California, San Diego. The Tritons compete in NCAA Division I, as a member of the Big West Conference (BWC). UC San Diego sponsors 23 teams at the varsity level.
The UC Davis Aggies are the athletic teams that represent the University of California, Davis.
The American West Conference (AWC) was a college athletic conference in the United States from 1993 to 1996. It consisted of schools in California and Utah. The charter members of the conference were California Polytechnic State University; California State University, Northridge; California State University, Sacramento; the University of California, Davis; and Southern Utah University.
The Cal Poly Mustangs men's soccer program represents the Cal Poly Mustangs of California Polytechnic State University in men's soccer at the NCAA Division I level. Like most teams from Cal Poly, they play in the Big West Conference. Since becoming eligible in the mid-1990s, Cal Poly has appeared in 3 NCAA Division I men's soccer tournaments, most recently in 2015.
The Cal Poly Mustangs are the athletic teams representing California Polytechnic State University in San Luis Obispo, California. The university fields twenty-two teams and compete in NCAA Division I; they are primarily members of the Big West Conference, but the football team plays in the Big Sky Conference, the wrestling team is an associate member of the Pac-12 Conference, and the swimming and diving program competes as an affiliate member in the Mountain Pacific Sports Federation.
The UC Santa Barbara Gauchos baseball team represents the University of California, Santa Barbara in the sport of baseball. The Gauchos compete in Division I of the National Collegiate Athletic Association (NCAA) through the Big West Conference. They are currently led by head coach Andrew Checketts, who led his fifth season with the Gauchos in 2016.
The 2018 Big West Conference men's soccer season is the 36th consecutive season of men's college soccer in the Big West Conference under the 2018 NCAA Division I men's soccer season. The season will feature eight teams, where one is an affiliate member of the conference. Sacramento State will compete from the Big Sky Conference. Colleges in the Big West will begin competition on August 24, 2018, and conclude on November 9, 2018 after the 2018 NCAA Division I Men's Soccer Championship. Prior to the NCAA Division I Tournament Championship, there will be a postseason conference tournament held at the university with the highest seed in the postseason conference tournament, where the winner is guaranteed to represent the Big West in the NCAA Division I Tournament. Hawaii and Long Beach State have defunct programs in this season.
– FBS Football, 
– FCS Football, 
– No Football
– FBS Football, 
– FCS Football, 
– No Football
