Ontario Completed New $850 Million Sports Empire
The sprawling 200-acre complex includes the award-winning ONT Field and extensive youth athletic facilities.
Updated on Sept. 28, 2026 in Baseball

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Ontario has finished construction on its $850 million Ontario Sports Empire. The 200-acre athletic destination includes ONT Field and is projected to attract 1.2 million visitors annually.
Why it matters
The project was launched to address city waste management costs and comply with 2025 minor league stadium mandates. By centralizing sports and waste operations, the city aims to reduce long-term hauling expenses.
The 200-acre facility features 24 baseball diamonds, 20 multi-purpose fields, and a 1,250-space parking structure. Development of the complex included the $150 million ONT Field, which was named 2026 ballpark of the year.
The players
Ontario
Ontario is a city in California that invested in the complex to modernize local infrastructure and support professional sports.
Fontana
Fontana is a nearby California city that previously served as the destination for city trash hauling operations.
The details
The facility centralizes a trash transfer location to minimize vehicle wear and hauling costs previously incurred by sending waste to Fontana. To fully utilize the new infrastructure, the city acquired a minor league baseball team.
Timeline
Minor league stadium upgrade requirements went into effect in 2025.
An opening-day celebration is scheduled for October 24, 2026.
The first baseball tournament at the complex begins October 31, 2026.
A Lunar New Year Celebration is planned for February 2027.
Roadmap
This project aligns with the industry-wide trend of cities investing in multi-purpose athletic hubs to secure professional minor league franchises. These developments represent a shift toward centralized sports tourism to stimulate local economic growth.
Residents can anticipate the closure of the Ontario Soccer Park as activities shift to the new complex. The facility is expected to drive $62 million in annual spending, significantly impacting local business traffic and tax revenue.
The takeaway
The multi-use design allows the city to solve municipal waste logistics while fostering a new sports tourism economy. Residents should look for increased traffic patterns around the complex during tournament weekends starting in late October.
What happens next
The complex will host its public opening-day celebration on October 24, 2026, followed by its first scheduled baseball tournament on October 31, 2026.
Further reading
For more on local diamond developments, visit Baseball.
More information
Review upcoming event schedules and project details on the Ontario Sports Empire official website.
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