Ethos

Chase Field: The Ballpark and Downtown Phoenix

Phoenix, Arizona

Part of Major League Ballparks

Chase Field stands at 401 East Jefferson Street in downtown Phoenix, and the Arizona Diamondbacks have played there since it opened on March 31, 1998 — under a different name. It was Bank One Ballpark until 2005.

This guide takes the ballpark first, then six places in downtown Phoenix, and then the ballpark's own record.

One thing about the research behind it changed what this guide claims. Three of the seven places came with evidence of current operation that turned out to be quotations the cited articles do not contain. Two of those places are published here without any statement about whether they are open; the third's status survived, because the article carries a real sentence saying the same thing, and it is that sentence the guide rests on.

  1. 401 East Jefferson Street: the Diamondbacks' home ballpark, open since March 31, 1998, with a retractable roof, a swimming pool and a capacity of 48,330.

  2. 201 East Jefferson Street: the downtown arena of the Phoenix Suns and Phoenix Mercury, under that name since 2025.

  3. 113 North 6th Street, at the corner of Monroe Street: an 1894-95 Stick-Eastlake Queen Anne mansion in Heritage Square, on the National Register since June 3, 1971.

  4. 600 Washington Street: a science center opened in 1984, in an Antoine Predock-designed 120,000-square-foot building since 1997.

  5. 222 East Monroe Street: a three-stage performing-arts venue opened in 1989, named for the founder of the Herberger's department store chain.

  6. 623 East Adams Street: the original location of a pizzeria established in 1987, in Heritage Square since 1996, whose chef won a James Beard award in 2003.

  7. A breakfast-and-lunch restaurant that opened downtown in late October 2004, with Best of Phoenix awards from the Phoenix New Times across seven years to 2019.

Getting there

Chase Field is served by two Valley Metro Rail stations on the A Line: 3rd Street/Jefferson eastbound and 3rd Street/Washington westbound. The A Line runs from the Downtown Phoenix Hub, where both of those stations sit, out to Gilbert Road/Main Street.

On parking, no published official price could be established, and the reason is worth stating: the club's own transportation and driving-directions subpages returned HTTP 406 to every automated fetch and could not be read at all. A third-party ballpark-directions site gives the ballpark's address and says parking is available east of 7th Street and in other surrounding areas, but names no garages and states no rates. Neither a garage name nor a rate appears here.

Around the ballpark

The downtown arena at 201 East Jefferson Street is called the Mortgage Matchup Center, and the name is worth pausing on because it reads like an error and is not. The encyclopedia gives the venue's full naming history ending "Mortgage Matchup Center (2025-present)", and the arena's own site names itself the same way at 201 East Jefferson Street. It is the home of the Phoenix Suns and the Phoenix Mercury.

The Rosson House is at 113 North 6th Street, at the corner of Monroe Street, within Heritage Square. It was built in 1894 and 1895 in the Stick-Eastlake Queen Anne style of Victorian architecture and was added to the National Register of Historic Places on June 3, 1971. The City of Phoenix bought the property in 1974 and restored it, and the Heritage Square Foundation and Guild operates the restored house as a historic house museum in the city's Heritage and Science Park, offering public tours.

The Arizona Science Center, at 600 Washington Street in the same Heritage and Science Park, was conceived in 1980 as a pilot science center by the Junior League of Phoenix and opened to the public in 1984 as the Arizona Museum of Science & Technology. It relocated in 1997 to its current 120,000-square-foot facility, designed by the architect Antoine Predock. As of April 2026 Tammy Stewart is its Hazel A. Hare President and CEO, and in October 2025 it opened the renovated Dorrance DOME, an 8K-plus resolution LED dome display.

The Herberger Theater Center, at 222 East Monroe Street, is an indoor performing-arts venue with three stages — Center Stage, Stage West and the Performance Outreach, or Kax, Stage. It opened in 1989 and was conceived as part of the redevelopment of downtown Phoenix, and it is named after G. Robert Herberger, founder of the Herberger's department store chain. The source credits it with more than 40 different performances a year, drawing about 175,000 patrons and 30,000 school children annually, and attaches no date to those figures.

Pizzeria Bianco's original location is at 623 East Adams Street. The restaurant was established in 1987 and moved to Heritage Square in

  1. Chef Chris Bianco won a James Beard Foundation award for best Southwest Chef in 2003, and the source describes him as the only pizza chef to have won a regional James Beard award; the restaurant took a Zagat score of 29 in 2000. Further locations opened in the Biltmore area of Phoenix in 2013 and in Los Angeles in 2022.

Matt's Big Breakfast opened in downtown Phoenix in late October 2004 and its own site gives hours of 7am to 2pm daily. Its address is an open question rather than a fact here: its own site gives 817 N 1st Street and the Phoenix New Times restaurant directory gives 825 N. First Street, and nothing reached settles which is right. That directory credits the restaurant with the paper's Best Breakfast or a related award in its annual Best of Phoenix poll in 2012, 2013, 2014, 2015, 2016, 2018 and 2019 — an award from an independent source rather than the restaurant's own claim, and one that stops in 2019.

One thing to know about the record behind these six. Three are published as operating: the arena, on two independent sources agreeing on its current name and its NBA and WNBA tenants; the Rosson House, on the encyclopedia's present-tense sentence about the foundation operating it and offering public tours; and the Arizona Science Center, on dated evidence — an April 2026 leadership statement and an October 2025 renovation opening.

The other three carry no such claim, and two of them lost it during verification. The evidence originally offered for the Herberger Theater Center was a quotation saying the venue "remains active"; the word "active" does not occur in that article at all. The evidence offered for Pizzeria Bianco was that its article states the restaurant remains operational; the article is written in the past tense throughout and states no such thing. For Matt's Big Breakfast, the finder's own call was already uncertain and the verifier endorsed it: the restaurant's own site cannot establish that it trades, and the independent source carries nothing dated past 2019. None of that is evidence of closure for any of the three, and none should be inferred.

The ballpark and the team

Chase Field opened on March 31, 1998 as Bank One Ballpark, after Bank One purchased the naming rights for $100 million over 30 years. It was renamed Chase Field in 2005, when JPMorgan Chase acquired those rights following the Bank One and JPMorgan Chase merger. Capacity has been 48,330 since 2023.

Two features define the building in the desert: a retractable roof and a signature swimming pool, which together let spectators avoid Phoenix's summer heat and its monsoon storms.

The Diamondbacks franchise was established on March 9, 1995 and began play in 1998 as a National League expansion team. In 2001 it beat the three-time defending champion New York Yankees to win the World Series, in what the source describes as the fastest an expansion team has reached a championship in Major League Baseball history.

Frequently asked questions

Which county is Chase Field in?
Maricopa County — on a corrected source. The research first attached the county to the encyclopedia's Chase Field article, and the verifier found that article does not state it: its Location field reads only "Phoenix, Arizona, U.S.", and the only appearances of "Maricopa" are the owning stadium district's name and a sentence about the county Board of Supervisors approving a sales tax. The county was re-established instead from the encyclopedia's article on Phoenix, whose infobox states the city's county as Maricopa, together with the independently confirmed street address; Phoenix does not span county lines.
Is the arena really called the Mortgage Matchup Center?
Yes. It reads like a transcription error and is not one. The encyclopedia's naming history for the venue ends "Mortgage Matchup Center (2025-present)", and the arena's own site names itself the same way at 201 East Jefferson Street, listing the Phoenix Suns and Phoenix Mercury as its tenants. The verifier checked it specifically for that reason.
What does parking cost at Chase Field?
No source this research could reach publishes a price, and the obstacle was mechanical rather than editorial: the club's own transportation and driving-directions subpages returned HTTP 406 to every automated fetch. A third-party directions site says parking is available east of 7th Street and in other surrounding areas, and names no garages and no rates. Nothing more is published here.
Which of these places is confirmed open?
Four of seven. The ballpark, the Mortgage Matchup Center, the Rosson House Museum and the Arizona Science Center — the last on dated evidence, an April 2026 leadership statement and an October 2025 renovation opening. The Herberger Theater Center, Pizzeria Bianco and Matt's Big Breakfast carry no claim. For the first two, that is because the evidence originally offered for them was quotations the cited articles do not contain; for the third, because the only independent source carries nothing dated past 2019. There is no evidence of closure for any of them.
What is Matt's Big Breakfast's address?
This guide does not say, because two sources disagree and nothing reached settles it. The restaurant's own site gives 817 N 1st Street, Phoenix, Arizona 85004; the Phoenix New Times restaurant directory gives 825 N. First Street. Both are published here and neither is placed in the record's address field as though it were settled.

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