American Family Field: The History, the Dimensions and How the Park Plays
A guide to American Family Field, home of the Milwaukee Brewers: its near-symmetrical dimensions, the retractable roof, the club's earlier parks from Seattle to County Stadium, and how to plan a visit.
American Family Field is the home of the Milwaukee Brewers, a retractable-roof ballpark with a natural grass field and a listed capacity of 41,900. The site's reference data gives the fences at 342 feet down the left-field line, 371 in left-center, 400 in center, 374 in right-center and 345 down the right-field line. Those numbers are almost a mirror image of each other, which is unusual in a sport where many parks have deliberate quirks. The ballpark sits at 597 feet above sea level, and the roof means a game here does not have to be played in whatever Wisconsin weather shows up.
The historical record lists the Brewers at the park from 2001, when it was called Miller Park, through the 2020 season, and under the name American Family Field from 2021. The franchise itself is younger than the ballpark's reputation suggests: it began in 1969 as the Seattle Pilots, lasted one season in Washington state, and moved to Milwaukee before the 1970 season. This guide explains the dimensions and the roof, walks through the four homes the club has used, sets out what has happened in the building, and finishes with general advice for a visit. Details that change, such as prices, food and transit, are left out on purpose; check the club's official pages for those.
The numbers on the field come from the site's own curated reference data. The history comes from the historical record through the 2025 season. For the club's current standing and next game, the live line above and the Brewers team page are the places to look.
The park by the numbers
| Feature | Listed value |
|---|---|
| Capacity | 41,900 |
| Roof | Retractable |
| Surface | Natural grass |
| Left field line | 342 feet |
| Left-center | 371 feet |
| Center field | 400 feet |
| Right-center | 374 feet |
| Right field line | 345 feet |
| Elevation | 597 feet above sea level |
| Orientation (home plate to center field) | 129 degrees, a bearing toward the southeast |
Add the five fence distances and divide by five and the average is 366.4 feet. That is a crude measure, because it ignores wall height and the shape of the fence between the marked points, but it helps for comparing parks, and this one is almost exactly typical. Nothing in the data marks the park as extreme in any direction. It is neither a bandbox nor a canyon.
A field that is almost a mirror image
Look at the pairs. The left-field line is 342 and the right-field line is 345, three feet apart. Left-center is 371 and right-center is 374, also three feet apart. Center field is 400. The corners are nearly the same distance, the alleys differ by less than a car length, and so the park does not favor a left-handed pull hitter over a right-handed one. In parks with a short porch on one side, the batter who pulls the ball with power gets a measurable advantage from the right side of the plate or the left. Here the two kinds of hitters are treated about alike by the fence distances.
That does not make the park play identically for everyone. Wall height, the foul territory behind the plate, the batter's background and the shape of the dirt around the infield all matter, and none of them are part of the reference data. A good test is to compare a team's home and road numbers over several seasons. A single year of home-run totals can swing on the roster alone, but a park that suppresses or inflates scoring tends to show it across a decade. If you are interested in that kind of analysis, the leaders pages on this site list the single-season and career marks for the club's hitters and pitchers.
The symmetry has another consequence for outfielders and managers. Because neither alley is much deeper than the other, a defensive alignment does not need to shift one way for the ballpark alone. The decision rests on the hitter, not the walls.
What the elevation does
At 597 feet above sea level, Milwaukee is only a little above the shore of Lake Michigan, and the effect of altitude on a batted ball is minimal. Air is a little denser here than at a high-altitude park, which means slightly more drag on a fly ball and slightly less carry. It is a small effect, easy to overstate. Weather is a much bigger factor than altitude here, and that is where the roof comes in.
The roof: why a Wisconsin ballpark has one
The point of a retractable roof in a northern city is to stop the weather from deciding when a game is played. Milwaukee in April can be cold and wet, and a rain delay or a postponement costs the club ticket sales and forces doubleheaders. With a roof that can close, the game goes on indoors. With the roof open on a warm night, it is an open-air ballpark.
Two features of this particular roof are worth knowing. The first is its shape: the roof folds in panels in a fan-like pattern, which was an unusual design when the park opened as Miller Park. The second is that the park keeps a natural grass field, which a stadium with a roof must be designed to support, since grass needs sunlight and air. Not every retractable-roof stadium can keep grass, and some use artificial turf instead.
Whether the roof is open or closed changes how the ball plays. With the roof closed, there is no wind, the air is stable, and the temperature is whatever the building holds, so a fly ball behaves more like the ball in a laboratory. With the roof open, wind from the lake or from the west can push a fly ball in or out. The club decides when to open or close the roof, and the forecast drives that choice, so the same ballpark can play two ways on two different nights. If you are watching on television and want to know how the park is playing, check which way the flags blow and whether the roof is closed.
Four homes in 57 years
The Brewers are one of the younger franchises in the sport, and the historical record shows only four parks in their history.
| Park | Seasons | Best season attendance |
|---|---|---|
| Sicks Stadium, Seattle | 1969 | 677,944 |
| County Stadium, Milwaukee | 1970-2000 | 2,397,131 |
| Miller Park | 2001-2020 | 3,071,373 |
| American Family Field | 2021-2025 | 2,650,089 |
The attendance column tells the story of the park's role in the club's finances. The best season at County Stadium was 2,397,131, and the best season in the Miller Park era was 3,071,373, in 2011, which is also the highest in franchise history. The best season under the American Family Field name through 2025 was 2,650,089. If every one of 81 home dates had drawn a crowd equal to the listed capacity of 41,900, the total would be 3,393,900, so that best figure is about 78 percent of a theoretical sell-out. It is a rough comparison, since attendance is the number of tickets distributed and the 2020 and 2021 seasons were disrupted by the pandemic, but it gives a sense of scale.
Seattle and the one-year Pilots
The franchise began play in 1969 as the Seattle Pilots in the American League, in an expansion season, and played its home games at Sicks Stadium, a minor-league park. The Pilots went 64-98 that year and finished sixth in the American League West. The club moved to Milwaukee before the 1970 season and became the Brewers, and the historical record treats the two names as a single franchise, which is why the team's records begin in 1969 and the franchise is described as having 57 seasons through 2025.
The move happened because the Pilots ran into financial trouble and a group led by Bud Selig, who had worked to bring baseball back to Milwaukee after the Braves left for Atlanta after the 1965 season, bought the club. That detail is why a baseball fan in Wisconsin tends to be a baseball fan with long memories: the city lost the Braves, waited four seasons, and then got the Brewers.
County Stadium: three decades of the old park
County Stadium had been the home of the Milwaukee Braves from 1953 to 1965, and the Brewers used it from 1970 through 2000. The best season attendance in that stretch was 2,397,131. The Brewers played in the American League until they moved to the National League Central before the 1998 season, which makes them a rare club that has played both sides of the divide.
The 1982 team is the best known from the County Stadium years. Known as Harvey's Wallbangers after manager Harvey Kuenn, the Brewers went 95-67, won the American League pennant by beating the Angels 3-2 in a five-game series, and lost the World Series to the Cardinals 4-3. Robin Yount won the Most Valuable Player award that year, and Pete Vuckovich won the Cy Young Award. Rollie Fingers had won both awards in the strike-shortened 1981 season, when the Brewers took the second-half division title and lost a five-game playoff to the Yankees. Yount is the club's career hits leader with 3,142 and the franchise's best-known player; his 20 seasons make him the Hall of Fame player with the most seasons in the Brewers' uniform, ahead of Paul Molitor with 15.
Hank Aaron, who had starred for the Braves in the same building, finished his career as a Brewer in 1975 and 1976, and hit the last of his 755 home runs at County Stadium in July of 1976. It is a small piece of the park's history that ties the old Braves and the new Brewers together.
Building Miller Park, and the opening in 2001
The new ballpark was supposed to open in 2000. It opened in 2001 instead, after an accident in July 1999 in which a crane collapsed during the construction and killed three workers. That is a documented part of the park's history and it is the reason for the delayed opening, and it is a reminder that stadiums, like everything else, are built by people.
The early years in the new park were lean on the field: the club's worst record in the database since its first season, 56-106, came in 2002. That summer, the park hosted the All-Star Game, which ended in a 7-7 tie after both clubs ran out of pitchers, one of the strangest nights in the history of the game, and one that prompted later changes in how the All-Star Game is decided. The winning came later.
The naming rights deal that gave the park its first name belonged to a brewing company. When that deal ended the park became American Family Field, and the historical record shows the new name starting with the 2021 season. Nothing about the field itself changed. Fans still call it "Miller Park" at times, a habit common to every renamed ballpark.
What the Brewers have done in this park
The Brewers' records since 2001 show a team that rose slowly. They reached the postseason as a wild card in 2008, lost a division series to the Phillies, and then won the National League Central in 2011 behind Ryan Braun, who was the league's Most Valuable Player that year, and Prince Fielder. They won 96 games in 2011, beat Arizona 3-2 in the division series, and lost the National League Championship Series to the Cardinals 4-2.
In 2018 Christian Yelich won the Most Valuable Player award, the Brewers won 96 games again, swept Colorado in the division series, and lost the league championship series to the Dodgers 4-3. They reached the postseason as a wild card in 2019 and 2020 and won the division in 2021, 2023, 2024 and 2025. In 2021 Corbin Burnes won the Cy Young Award, and the Brewers lost the division series to Atlanta 3-1. In 2025 they won 97 games, the most in franchise history, and beat the Cubs 3-2 in the division series before the Dodgers swept them 4-0 in the league championship series.
What the club has not done, through 2025, is win the World Series. Its only pennant came in 1982. The postseason history, series by series, is covered in the best Milwaukee Brewers seasons and every October run, and the full story of the franchise is in the history of the Milwaukee Brewers.
Who has hit and pitched here
The career leaders for the franchise give a sense of who the park has been built around. Ryan Braun hit 352 home runs as a Brewer, the most in franchise history, followed by Robin Yount with 251, Prince Fielder with 230 and Geoff Jenkins with 212. Yount and Paul Molitor lead in hits and runs scored. On the mound, Jim Slaton leads the franchise with 117 wins, ahead of Mike Caldwell with 102 and Teddy Higuera with 94, while Yovani Gallardo holds the strikeout record with 1,226, just ahead of Ben Sheets with 1,206 and Freddy Peralta with 1,153 through 2025. The best players in Milwaukee Brewers history goes through them position by position.
The pitching leaderboards say something about the franchise as well. The career win leader has 117 wins, a low figure for a franchise leader, and no Brewers pitcher has reached 120.
Planning a visit
The advice below is general. Check the club for anything that costs money or depends on a schedule.
- Look at the weather, but not too hard. The roof means a rainout is unlikely, and you can dress for an indoor game even if it is cold outside, but a roof that is open on a cool night can still feel like April.
- Plan for the lot. Tailgating in the parking areas is a long-standing Wisconsin tradition at Brewers games, so arriving early is part of the experience for many fans. Check the club's current rules on what is allowed.
- Know the history. A fan who has read about Yount, Molitor and the 1982 team will get more out of the displays and the stories that regulars like to tell.
- Arrive for the whole game. The Brewers have a set of between-innings traditions, including a famous race among costumed sausages, and children in particular tend to like them.
- Look at the schedule early. The schedule page lists home dates, and promotions and giveaways are on the club's official site.
The full American Family Field ballpark page holds the reference data, and the Brewers topic page gathers the latest news.
Where the park fits in the division
The Brewers play in the National League Central with the Cubs, Reds, Pirates and Cardinals. All four of the others are much older franchises, and their histories are in the Chicago Cubs franchise history, the Cincinnati Reds franchise history and the Pittsburgh Pirates franchise history. In that company the Brewers are the newcomer, and the roof is the park's signature.
Common questions
What is the park's capacity? The reference data lists 41,900. Actual attendance counts tickets distributed, so a crowd can be reported above or below that figure.
Does the roof always close in bad weather? The roof is retractable, so it can be closed to keep out rain and cold, and the club decides when to open or close it. Check the club's current practice before a game if the weather is unsettled.
Is it a hitters' park? On dimensions alone, no. The distances are about average and nearly symmetrical, so there is no short porch to exploit. Over a long period, park factors on the home and road scoring would give a better answer than the distances do.
Where did the Brewers play before? County Stadium from 1970 to 2000, Sicks Stadium in Seattle in 1969 as the Pilots, and then Miller Park from 2001 to 2020 before the name changed to American Family Field in 2021.
Have the Brewers won the World Series? Not through 2025. They reached it once, in 1982, and lost to the Cardinals in seven games.
Where to go next
Read the history of the Milwaukee Brewers for the move from Seattle and the road from County Stadium to the present, then the best Brewers seasons and every October run for the postseason detail. The history of the World Series puts the 1982 loss in context, and the standings page shows where the club sits now.