Single-A · California League · San Jose, California, US · Excite Ballpark
San Jose Giants
The San Jose Giants are the Single-A affiliate of the San Francisco Giants, playing in the California League at Excite Ballpark — the longest-tenured Giants minor league affiliate, dating to 1988.
1988–2005
Establishing a Dynasty
San Jose becomes a California League powerhouse
The San Jose Giants were established in 1988 when the San Francisco Giants moved their California League affiliate to Municipal Stadium (now Excite Ballpark), a venue originally built as a WPA project in 1942 that had already hosted decades of professional baseball under identities including the San Jose Owls, Red Sox, Missions, and Bees.
The franchise quickly established itself as a California League force, capturing its first championship in 1998. In 2001, San Jose was declared co-champions with the Lake Elsinore Storm after the California League Championship Series was canceled following the September 11 attacks. The Giants added titles in 2005, building a reputation as one of the premier development stops in the San Francisco system.
Throughout this era, the ballpark hosted future major leaguers working their way through the Giants' pipeline, and the South Bay community embraced the team as an affordable family entertainment option in the heart of Silicon Valley.
Key Facts
- Franchise established in 1988 at Municipal Stadium
- First California League championship in 1998
- 2001 co-champions with Lake Elsinore (post-9/11 cancellation)
- 2005 championship cemented dynasty status
2006–2013
The Golden Era
Championships and record-setting seasons
The late 2000s and early 2010s represented the most dominant stretch in franchise history. The Giants captured California League championships in 2007, 2009, and 2010 — three titles in four years — establishing San Jose as the Cal League's preeminent franchise.
The 2009 season was particularly remarkable, with the team posting 93 wins, the highest single-season total in franchise history. The 2010 championship completed a back-to-back run that coincided with the parent club's own World Series victory, creating a top-to-bottom winning culture throughout the organization.
The 2011 squad posted a 90-50 record, and the 2013 team went 83-57, demonstrating sustained excellence even in non-championship years. This era produced a steady stream of talent that contributed to the San Francisco Giants' dynasty years, including three World Series titles between 2010 and 2014.
Key Facts
- Championships in 2007, 2009, and 2010
- 93 wins in 2009 — franchise single-season record
- 90-50 record in 2011
- Talent pipeline fueled SF Giants' three World Series titles
2014–Present
New Ownership and a New Championship
Diamond Baseball Holdings and a return to glory
After the golden era, the Giants experienced several rebuilding seasons through the mid-to-late 2010s, with the parent club's focus shifting as the major league roster cycled through a transitional period. The 2021 MiLB reorganization reclassified San Jose from High-A to Single-A, and the franchise was sold to Diamond Baseball Holdings in December 2021.
Under new ownership, the Giants found their footing again. The 2021 season produced a 76-44 record and a Low-A West championship — the franchise's seventh league title. After competitive seasons in 2022 (74-58) and 2024 (74-57, North Division winners), the 2025 team broke through emphatically.
Led by second-year manager Ydwin Villegas, the 2025 Giants posted a league-best 81-51 record, leading the California League in runs per game, batting average, ERA, and run differential. The team swept Inland Empire in the Championship Series to claim the franchise's eighth California League title. In March 2025, a 25-year lease extension secured the team at Excite Ballpark through 2050, ensuring San Jose remains a fixture of the California League for decades to come.
Key Facts
- Reclassified from High-A to Single-A in 2021 MiLB reorganization
- Sold to Diamond Baseball Holdings in December 2021
- 2021 Low-A West championship (76-44 record)
- 2025: league-best 81-51, eighth California League title
- 25-year lease extension signed through 2050