Runs per Game at Every MLB Ballpark

Runs per game at every ballpark

Both teams' runs combined, per completed regular-season game at each venue with at least 20 games. League average: 8.96 runs per game.

Park factor index, home vs road

A park factor compares scoring in a team's home games with scoring in the same team's road games, so the club's own hitters and pitchers cancel out. 1.00 is neutral, 1.10 means about ten percent more runs at that park, 0.90 about ten percent fewer. One season of games is a small sample, so read the middle of the table as roughly neutral.

Click a header to sort. Gold index: hitter-friendly (1.05 or higher). Pink: pitcher-friendly (0.95 or lower). Dimensions and capacity come from MLB venue data.

Source: MLB Stats API (statsapi.mlb.com). 2026 regular season unless marked otherwise. Updated Oct 6, 2026, 4:51 AM ET. Scoring averages describe games played at a park, including the home team's own hitters and pitchers. They are not park factors.

Baseball is the only major sport where the field is not the same size everywhere. Fences sit at different distances, walls come in different heights, and one stadium is a mile above sea level while another is a few blocks from the Pacific. The result is that the same two teams can play a 4-3 game in one city and an 8-7 game in another. The chart above shows how many runs per game each ballpark has produced this season, both teams combined, for every venue with at least 20 completed games.

How to read the chart

Each bar is one park, labeled with the home team and the number of games played there. The bars run from the highest-scoring venue at the top to the lowest at the bottom, and the league average sits above the chart for comparison. Parks that have hosted fewer than 20 games, such as a neutral-site special event, are left out because a handful of games can swing wildly.

Keep in mind what the number measures: every run scored by both teams in every game at that park. It is a raw scoring average, which is not the same thing as a park factor. We explain the difference below, and it matters.

Why ballparks score differently

Altitude. Coors Field in Denver sits at about 5,200 feet. The thinner air creates less drag on a batted ball, so fly balls carry farther, and breaking pitches move less, which makes them easier to hit. The Rockies have stored game balls in a humidor since 2002 to keep them from drying out, which took some of the edge off, but Coors is still the best-known hitter’s park in the sport.

Dimensions and walls. Short fences mean more home runs; deep fences turn some of those into long outs. Fenway Park in Boston has the Green Monster, a left-field wall about 37 feet high that sits only about 310 feet from home plate. It turns some home runs into singles and plenty of routine fly balls into doubles. A big outfield can raise scoring in its own way too, because more ground to cover leaves more room for hits to drop.

Foul territory. More foul ground means more foul pop-ups caught for outs. The old Oakland Coliseum was famous for its huge foul area, which quietly helped its pitchers for decades. Parks with seats close to the lines give hitters extra chances instead.

Roofs. Several parks have retractable roofs. When the roof is closed, the park plays at a steady temperature with no wind, which takes weather out of the game. When it is open, the park behaves like any other open-air stadium on that day.

Marine layer and sea air. Coastal parks like Oracle Park in San Francisco and Petco Park in San Diego often play with cool, heavy, damp air coming off the ocean, especially at night. The ball does not carry as well, and these parks have a reputation as pitcher-friendly.

Temperature. Warm air is less dense than cold air, so the ball travels farther in July than in April. The same park can play quite differently at an April night game and a summer afternoon game.

Raw scoring averages vs park factors

The chart shows raw runs per game, and raw scoring has a built-in problem: the home team plays half its games at its own park. A club with a great lineup and a weak pitching staff will push its park’s number up no matter what the park is like. A club with an elite rotation will pull it down.

A park factor tries to separate the park from the team. The usual method compares how many runs a team and its opponents score at home with how many they score on the road, often over several seasons, and scales the result so that 100 is neutral. A park factor of 110 suggests a park inflates scoring by about 10%. It is a better measure of the ballpark itself, but it takes several seasons of data to settle, and it lags behind changes like new fences or a moved wall.

We show the raw number because it is transparent and updated every day. Read it as “this is how many runs games here have produced this season,” then ask how much of that comes from the teams involved. A high number at a park where the home team hits well is less surprising than a high number at a park where the home team cannot score.

How totals bettors use park context

The market sets a total for every game, and park is one of the inputs already built into it. Nobody gets an edge by noticing that Coors Field is a hitter’s park; the book noticed first. The value in park context comes from the details the posted number might not fully reflect.

Say a game at a pitcher-friendly coastal park has a total of 7.5, and both starters are having solid seasons. If the forecast calls for a warm evening with a wind blowing out, which happens less often at that park than usual, the conditions for that game may be better for hitters than the park’s reputation suggests. Or take a hitter-friendly park where the total is posted at 10: if the roof is closed and the two starters strike out a lot of hitters, the high number might be pricing the park more than the matchup.

Our guide to over/under betting covers how totals are priced and settled, and the probable pitchers board shows who is starting in each game. A park’s effect is also visible in the first inning, so if you are looking at a first-inning bet, check this chart alongside the team tables on our NRFI page. The matchup cards on the baseball picks page show each game’s park scoring next to both starters.

To see what a total price actually requires, run it through our odds calculators, and if the basics of totals and moneylines are new, start with our guide to reading baseball betting lines. Bet only what you have set aside for it; betting is for adults 21 and older, and 1-800-GAMBLER is there if it stops being fun.

One more wrinkle: the list of home parks is not frozen. Teams move fences in or out, add or remove seats in foul territory, and occasionally play a season in a temporary home while a new stadium is built. Any of those changes can make a park’s history misleading, which is one more reason we show the current season rather than a long average. If a park suddenly scores very differently from its reputation, check whether something about the field itself has changed before you assume the teams are the reason.

Weather and the park, together

Weather changes a park more than people expect. Wrigley Field in Chicago is the textbook case: when a warm wind blows out toward the bleachers, fly balls carry and a total can jump by a run or more. When the wind comes in off Lake Michigan, the same park turns into one of the toughest places to hit in baseball. On a single day, the difference between those two conditions can be larger than the difference between two ballparks.

Heat, humidity and wind all interact with a park’s design. A park with short fences gets more out of a hot, windy night than a park with deep fences does. A closed roof removes all of it. So when you look at the chart above, read each number as an average over a mix of conditions, and check the forecast for the game in front of you. For more guides and data pages, the homepage has the full list.