T-Mobile Park

Home of the Seattle Mariners

Seattle, WA

Still to visit

Teams

Seattle Mariners
MLB · baseball
1999–present

Also known as Safeco Field

Stadium facts

Capacity: 47,368; Baseball capacity cited from the Mariners' 2025 guide. Football is listed separately at 30,144.Source for capacity
Record attendance: 54,097; WrestleMania XIX. A 2002 friendly, the United States against Honduras, is described as a then-record soccer crowd of 38,534.Source for record attendance
Opened: July 15, 1999; Ground broken March 8, 1997.Source for opened
Surface: Kentucky bluegrass and perennial ryegrass; Source for surface
Roof: Retractable; Source for roof
Cost: $517 million; Construction cost on the stadium page.Source for cost

Names and sponsors

Safeco Field
1999–2018
Sponsor: Safeco
Source
T-Mobile Park
2019–present
No dollar terms for the naming deal were taken from the page.
Source
The Safe
Nickname
Source
The House that Griffey Built
Nickname
Source

Timeline

1999
2001
2001
2002
2003
2012
2012

July 15, 1999

Opening day

The Mariners' park opened on July 15, 1999, as Safeco Field. The construction cost on the page is $517 million, with a retractable roof. The nickname list includes The Safe and The House that Griffey Built.

Source