|No. of teams||10|
|Tacoma Rainiers (2021)|
|Most titles||Tacoma Rainiers (1)|
The Triple-A West is a 10-team Minor League Baseball league that began operating in the United States in 2021. Along with the Triple-A East, it is one of two leagues playing at the Triple-A level, which is one grade below Major League Baseball (MLB). The league was created in 2021 in conjunction with MLB's reorganization of the minor leagues. The league is made up of nine teams formerly of the Pacific Coast League and one from the independent Atlantic League of Professional Baseball.
Former Pacific Coast League teams
- Albuquerque Isotopes (2003–present)
- El Paso Chihuahuas (2014–present)
- Las Vegas Stars (1983–2000) → Las Vegas 51s (2001–2018) → Las Vegas Aviators (2019–present)
- Oklahoma City 89ers (1962–1997) → Oklahoma RedHawks (1998–2008) → Oklahoma City RedHawks (2009–2014) → Oklahoma City Dodgers (2015–present)
- Reno Aces (2009–present)
- Round Rock Express (2000–present)
- Sacramento River Cats (2000–present)
- Salt Lake Buzz (1994–2000) → Salt Lake Stingers (2001–2005) → Salt Lake Bees (2006–present)
- Tacoma Giants (1960–1965) → Tacoma Cubs (1966–1971) → Tacoma Twins (1972–1977) → Tacoma Yankees (1978) → Tacoma Tugs (1979) → Tacoma Tigers (1980–1994) → Tacoma Rainiers (1995–present)
Former Atlantic League teams
- Sugar Land Skeeters (2012–present)
Postseason playoffs to determine a league champion in the Triple-A West's inaugural 2021 season were not held. Instead, the team with the best regular-season record was the declared the winner. The title went to the Tacoma Rainiers (73–47; .608), who were 2 games ahead of the second-place Sugar Land Skeeters (71–49; .592).
|2021||Tacoma Rainiers||Seattle Mariners||—||Sugar Land Skeeters||Houston Astros|||
Four awards were presented in the Triple-A West's first season: Most Valuable Player, Pitcher of the Year, Top MLB Prospect, and Manager of the Year.
Most Valuable Player
|2021||José Marmolejos||Tacoma Rainiers||Seattle Mariners||First baseman||.338||26||75|||
Pitcher of the Year
|2021||Peter Solomon||Sugar Land Skeeters||Houston Astros||8–1||4.70||112|||
Top MLB Prospect
|2021||Jo Adell||Salt Lake Bees||Los Angeles Angels||Outfielder||.289||23||69|||
Manager of the Year
|2021||Kristopher Negrón||Tacoma Rainiers||Seattle Mariners||West||1st||78–52|||
The Triple-A West's first no-hitter occurred on July 3, 2021, when Luke Westphal of the El Paso Chihuahuas allowed no hits against the Albuquerque Isotopes at Isotopes Park in Albuquerque, New Mexico. Rain caused the game to be called after five innings with El Paso ahead 16–0. The first nine-inning no-hitter occurred on September 3, 2021, when four Sacramento River Cats pitchers no-hit the Salt Lake Bees at Sutter Health Park in Sacramento, California. The feat was accomplished by starting pitcher Norwith Gudino and relievers Conner Menez, Tyler Cyr, and Trevor Got.
|1||July 3, 2021||Luke Westphal||El Paso Chihuahuas||16–0 (5)||1||Albuquerque Isotopes||Isotopes Park|||
|2||September 3, 2021||Norwith Gudino (4 IP)
Conner Menez (3 IP)
Tyler Cyr (1 IP)
Trevor Got (1 IP)
|Sacramento River Cats||4–0||1||Salt Lake Bees||Sutter Health Park|||
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