The Caribbean Series and Winter Ball

By 4Baseball Staff · November 5, 2026 · 10 min read

Winter leagues in the Dominican Republic, Venezuela, Puerto Rico, Mexico and elsewhere crown champions who meet in the Caribbean Series each February. This guide covers the leagues, the tournament's history and where the players come from.

When the World Series ends in the United States, baseball does not stop. In the Dominican Republic, Venezuela, Puerto Rico, Mexico and several other countries, professional leagues play through the winter, from October or November until January. The champions of those leagues then meet in a short tournament in February called the Caribbean Series, a club championship for the winter leagues of the region.

The tournament matters for two reasons that do not always overlap. For fans in the countries involved, it is a source of national and civic pride and a chance to see their league's best clubs face the champions of other countries. For major-league clubs, winter ball is a place where prospects get extra at-bats and innings and where veterans return to play at home. The result is a competition in which a team's lineup might include a major-league All-Star on vacation and a twenty-year-old from a minor-league system on assignment.

This article explains how winter ball works, how the Caribbean Series began, which leagues take part and where the game's Latin American players come from, using the historical record for the numbers. The league and club details reflect the situation as we understand it through the 2025 season, and winter leagues change their schedules and formats from year to year, so check each league's official site for current information.

What winter ball is

Winter ball is professional baseball played during the northern hemisphere's off-season in countries where the weather allows it. The major-league season runs from spring to fall, and most American minor leagues follow the same calendar. In the Caribbean, in Mexico's Pacific coast states and in parts of South America, the winter is the baseball season.

A typical winter league has six to ten clubs, a schedule of a few dozen games a team and a postseason that narrows the field to a champion, usually in late January. The rosters mix local professionals with "imports": foreign players, many of them minor-leaguers from major-league organizations, whom the league allows each club to carry in limited numbers. Rules on imports differ by league, so the details are worth checking in each case.

The calendar creates a mutually useful arrangement. A major-league organization can send a prospect to winter ball to make up for lost time from an injury, to test him against older competition or to work on a pitch. A player from the Dominican Republic or Venezuela can play in front of his home crowd. And the local clubs get a talented roster. The tradeoff is risk, since an injury in winter ball can cost a player the following season, and clubs sometimes restrict their best players from participating. Those restrictions are usually written into the player's contract or negotiated with the club.

How the Caribbean Series began

The Caribbean Series was founded in 1949, with the first tournament held in Havana. The original participants were the champions of the winter leagues of Cuba, Puerto Rico, Panama and Venezuela. Cuba was then a major center of baseball in the region, and its professional winter league, with clubs such as Habana and Almendares, drew large crowds and many American players, including stars from the Negro Leagues, who found steady winter pay in the Caribbean.

The tournament was interrupted in 1961 because of political changes in Cuba, which ended professional baseball there. The series was not played again until 1970, and after its return it settled into a format built around four countries: the Dominican Republic, Mexico, Puerto Rico and Venezuela. That arrangement held for decades. Cuba returned in 2014, sending a team for the first time since the early 1960s, and in recent years the event has included champions from additional countries. The list of participants has changed over time, and anyone looking for a particular year should check the tournament's official records.

The format has also varied. In general, the champions play a round-robin schedule against each other, sometimes followed by playoff games or a final. The tournament is held in early February, usually in a different host country each year on a rotation, and lasts about a week.

The leagues, country by country

Several of these deserve a closer look.

The Dominican league is the one most often associated with the modern pipeline of major-league talent. Its clubs play in the capital, Santo Domingo, and in cities such as Santiago and San Pedro de Macorís. We discuss the sport's place in the country in baseball in the Dominican Republic.

Venezuela's league has a long history and a devoted fan base. The country has been a major source of major-leaguers for decades, and its winter league is part of the reason; see baseball in Venezuela.

Puerto Rico's league carries the name of Roberto Clemente, who played winter ball in his home island as well as the major leagues. The island's baseball history is closely tied to the American game, and its winter league has had a long run with changes in format and schedule over the years. Current status and schedule should be checked with the league.

Mexico's Pacific League is distinct from the summer Mexican League. Many Mexican fans follow both, and the relationship between them and with the major leagues is described in Mexican baseball: the Liga Mexicana and the Pacific League.

Cuba is the special case. Its pre-1961 professional league produced many of the stars of the first Caribbean Series, and the country remains central to the story of baseball in the region even though many of its best players left. For that story, see baseball in Cuba.

Why winter ball matters to the majors

The majors have a stake in winter ball in at least four ways.

1. Development. Prospects who missed time or who need more repetitions can play in a league with older and more experienced opponents. A pitcher who had a short season can add innings. A hitter facing strong breaking balls for the first time can learn from it.
2. Exposure. Scouts watch winter ball because it offers a view of players in a different environment, under pressure from fans who expect to win.
3. Veterans at home. Some major-leaguers return to their home leagues in the off-season to play a few weeks for their hometown club, a tradition that reinforces ties between the major leagues and the countries that supply many of its players.
4. Alternatives. Prospects also have other options outside winter ball. The Arizona Fall League, for example, brings top prospects from every organization together, and the Australian Baseball League offers games in the southern hemisphere's summer. These are alternatives to winter ball, not substitutes, and they have different rules and purposes.

There is also a historical dimension. For much of the twentieth century, American players who were excluded from the major leagues by the color line played in Caribbean winter leagues alongside white players, often in front of integrated crowds. Those seasons are part of the history of the Negro Leagues, though the historical record covers Negro Leagues play only from 1920 to 1948 and carries no winter-league statistics. In a related spirit, American stars of the 1940s such as Bob Feller organized barnstorming tours in the off-season, a story told in our profile of Bob Feller.

Where major-leaguers come from, in the historical data

The countries that stage winter ball are also the countries that send the most players to the majors outside the United States. The historical record shows each player's birth country, so we can count them. The table shows the number of players in the database born in each country who appeared in at least one game in the database, and the number who appeared in 2025. The all-time column includes the Negro Leagues, which is why Cuba's total is high: 245 of its 455 players appeared in the National or American League.

For context, 1,470 players appeared in a major-league game in 2025 according to the batting and pitching files, and 1,081 of them were born in the United States. The seven countries in the table together account for 326 of those 1,470, or about 22 percent. The Dominican Republic alone accounts for 145, or about 10 percent, and Venezuela for 92, about 6 percent.

Two caveats apply. The numbers count birth country, not nationality or where a player learned the game. Some players born in Cuba, for example, grew up in the United States, including two of the three leading home-run hitters in the Cuban-born group, Rafael Palmeiro (569) and Jose Canseco (462). And the database is of major-league play only; it does not count the players who spent careers in winter leagues without reaching the majors.

The arrival of Dominican-born players shows how fast the pipeline grew. By the decade of their major-league debut, the database records 2 Dominican-born players in the 1950s, 22 in the 1960s, 38 in the 1970s, 64 in the 1980s, 156 in the 1990s, 213 in the 2000s and 265 in the 2010s. The 2020s count, through 2025, is already 170.

Another way to read the table is to compare the two columns. Of all the Dominican-born players who have appeared in the majors, 145 of 937, or about 15 percent, played in 2025. For Venezuela the share is 92 of 500, about 18 percent, and for Colombia 8 of 32, a quarter of the country's all-time total. For Cuba it is 33 of 455, about 7 percent, and for Puerto Rico 27 of 310, about 9 percent. A high share means that the country's flow of players is recent and growing; a low share means that its great era, or its largest wave, came earlier. Part of the reason for the differences is how players enter professional baseball. Players from the Dominican Republic and Venezuela generally sign as international free agents, while players from Puerto Rico have been eligible for the amateur draft since 1990, and political restrictions have shaped the path for players from Cuba.

The career home-run leaders by birth country give a sense of the talent:

What the tournament looks like to a fan

The Caribbean Series is built differently from the World Series. The games are held in a single host country each year, and each national champion is a club team, not a national team. The quality of play varies with who is available. Rosters mix home-country professionals, imports and prospects, and because the major leagues have an interest in protecting their players, the biggest stars may play only a limited part.

Results are also less predictable than in a longer series. A short tournament of a few teams and a handful of games each is a small sample, and an upset is always possible. That is part of the pleasure, and part of why it is wise not to over-read a single tournament as proof of one country's superiority.

To follow the Series, look for the official tournament site and the websites of the participating leagues, which publish schedules and results. Coverage is generally fuller in Spanish than in English. You can also browse our international page for the wider world of the sport.

Common questions

Who plays in the Caribbean Series? The champions of the winter leagues of the participating countries. For decades those were the Dominican Republic, Mexico, Puerto Rico and Venezuela, with Cuba rejoining in 2014 and other countries added in recent years.

When is it held? In early February, after the winter league seasons end.

Is it the same as the World Baseball Classic? No. The World Baseball Classic is a national-team tournament with players chosen by country. The Caribbean Series is a club tournament, with teams that won their league titles.

Do major-league stars play in it? Some do, mostly in their home leagues' regular seasons or early rounds, but clubs often limit their stars' participation to avoid injuries. Prospects are more common.

Why did the series stop in 1961? Professional baseball in Cuba ended after the political changes there, and the tournament lost one of its founding members. It resumed in 1970 under a new format.

Where to go next

For the countries behind the tournament, read baseball in the Dominican Republic, baseball in Venezuela, Mexican baseball and baseball in Cuba. Winter ball is one of several international pathways; for another, see baseball in Taiwan and the CPBL, and for news and results from outside the United States, the world baseball topic page and the international page.