paragraph_text: The 2009 NBA Finals was the National Basketball Association (NBA)'s championship series for the 2008 -- 09 season. The best - of - seven playoff was contested between the Western Conference champion Los Angeles Lakers (who were also the defending Western Conference champions), and the Eastern Conference champion Orlando Magic. The Lakers defeated the Magic, four games to one, to win the franchise's 15th NBA championship. The 63rd edition of the championship series was played between June 4 and June 14 and was broadcast on U.S. television on ABC.

paragraph_text: The 1990 World Series was the 87th edition of Major League Baseball's championship series and the conclusion of the 1990 Major League Baseball season. The Series featured the defending champions and heavily favored American League (AL) champion Oakland Athletics against the National League (NL) champion Cincinnati Reds. The Reds defeated the Athletics in a four - game sweep. It was the fifth 4 - game sweep by the National League and second by the Reds after they did it in 1976, as well as the second consecutive World Series to end in a sweep, after the A's themselves did it to the San Francisco Giants in 1989. It is remembered for Billy Hatcher's seven consecutive hits. The sweep extended the Reds' World Series winning streak to nine games, dating back to 1975. This also was the second World Series meeting between the two clubs (Oakland won four games to three in 1972). As of 2017, this remains both teams' most recent appearance in the World Series.

paragraph_text: The 1935 World Series featured the Detroit Tigers and the Chicago Cubs, with the Tigers winning in six games for their first championship in five World Series appearances. They had lost in 1907, 1908, 1909, and 1934.

paragraph_text: The final playoff round, a best - of - seven series between the victors of both conferences, is known as the NBA Finals, and is held annually in June. The victor in the NBA Finals wins the Larry O'Brien Championship Trophy. Each player and major contributor -- including coaches and the general manager -- on the winning team receive a championship ring. In addition, the league awards the Bill Russell NBA Finals Most Valuable Player Award to the best performing player of the series.

paragraph_text: The 2001 World Series was the 97th edition of Major League Baseball's championship series, a best - of - seven playoff between the National League (NL) champion Arizona Diamondbacks and the three - time defending World Series champions and American League (AL) champion New York Yankees. The Diamondbacks defeated the Yankees four games to three to win the best - of - seven series. Considered one of the greatest World Series of all time, memorable aspects included two extra-inning games and three late - inning comebacks. It ended on a Game 7 walk - off hit in the form of a bases - loaded blooper single off the bat of Luis Gonzalez. This was the third World Series to end in this way, following 1997 and 1991. This was also the Yankees' fourth consecutive World Series appearance, after winning it in 1998, 1999, and 2000.

paragraph_text: The New England Patriots hold the longest active consecutive playoff streak with 9 appearances, starting with the 2009 -- 10 NFL playoffs, which is tied for the longest of all - time. The Patriots have won two Super Bowls during this streak. The Dallas Cowboys also hold this record with nine appearances from 1975 - 1983. The Cowboys won one NFL championship during the streak. The Indianapolis Colts tied this record with nine straight appearances and one championship from 2002 - 2010. The Green Bay Packers hold the longest consecutive NFL title streak with three consecutive crowns. They did this once in the 1920s, before playoff games, and once in the 1960s, by winning seven playoff games during this three year championship streak.

paragraph_text: The Cavaliers -- Warriors rivalry is a National Basketball Association (NBA) rivalry between the Cleveland Cavaliers and the Golden State Warriors. While the two teams have played each other since the Cavaliers joined the league in 1970, their rivalry began to develop in the 2014 -- 15 season, when they met in the first of four consecutive NBA Finals series. Prior to the streak beginning, no pair of teams had faced each other in more than two consecutive Finals. Of these four series, the Warriors have won three championships (2015, 2017, and 2018), and the Cavaliers won in 2016.

paragraph_text: The 2011 NBA Finals was the championship series of the 2010 -- 11 season of the National Basketball Association (NBA) in which the Western Conference champion Dallas Mavericks defeated the Eastern Conference champion Miami Heat 4 games to 2 to win their first NBA championship. The series was held from May 31 to June 12, 2011. German player Dirk Nowitzki was named the Finals MVP, becoming the second European to win the award after Tony Parker (2007) and the first German player to do so. The series was a rematch of the 2006 NBA Finals, which the Heat had won in six games.

paragraph_text: The Chicago Cubs have not won a World Series championship since 1908, and have not appeared in the Fall Classic since 1945, although between their postseason appearance in 1984 and their most recent in 2015, they have made the postseason seven times. 107 seasons is the longest championship drought in all four of the major North American professional sports leagues, which also includes the National Football League (NFL), the National Basketball Association (NBA), and the National Hockey League (NHL). In fact, the Cubs' last World Series title occurred before those other three leagues even existed, and even the Cubs' last World Series appearance predates the founding of the NBA. The much publicized drought was concurrent to championship droughts by the Boston Red Sox and the Chicago White Sox, who both had over 80 years between championships. It is this unfortunate distinction that has led to the club often being known as "The Lovable Losers." The team was one win away from breaking what is often called the "Curse of the Billy Goat" in 1984 and 2003 (Steve Bartman incident), but was unable get the victory that would send it to the World Series.

paragraph_text: On another note, this series marked the first time the "NBA Finals" branding was officially used, as they dropped the "NBA World Championship Series" branding which had been in use since the beginning of the league, though it had been unofficially called the "NBA Finals" for years.

paragraph_text: The Knicks were successful during their early years and were constant playoff contenders under the franchise's first head coach Joe Lapchick. Beginning in 1950, the Knicks made three consecutive appearances in the NBA Finals, all of which were losing efforts. Lapchick resigned in 1956 and the team subsequently began to falter. It was not until the late 1960s when Red Holzman became head coach that the Knicks began to regain their former dominance. Holzman successfully guided the Knicks to two NBA championships, in 1970 and 1973. The Knicks of the 1980s had mixed success that included six playoff appearances; however, they failed to participate in the NBA Finals.

paragraph_text: In 1906, the franchise recorded a Major League record 116 wins (tied by the 2001 Seattle Mariners) and posted a modern-era record winning percentage of .763, which still stands today. They appeared in their first World Series the same year, falling to their crosstown rivals, the Chicago White Sox, four games to two. The Cubs won back-to-back World Series championships in 1907 and 1908, becoming the first Major League team to play in three consecutive Fall Classics, and the first to win it twice. The team has appeared in seven World Series following their 1908 title, most recently in 1945. The Cubs have not won the World Series in 107 years, the longest championship drought of any major North American professional sports team, and are often referred to as the "Lovable Losers" because of this distinction. They are also known as "The North Siders" because Wrigley Field, their home park since 1916, is located in Chicago's North Side Lake View community at 1060 West Addison Street. The Cubs have a major rivalry with the St. Louis Cardinals.

paragraph_text: The Yankees have won a record 27 World Series in 40 appearances (which, since the first World Series in 1903, currently amounts to an average appearance every 2.7 seasons and a championship every 4.0 seasons); the St. Louis Cardinals are second with 11 World Series victories. The Yankees' number of World Series losses, 13, leads Major League Baseball. The St. Louis Cardinals, Brooklyn / Los Angeles Dodgers and New York / San Francisco Giants are second in total World Series appearances with eighteen apiece. Of their 18 World Series appearances, the Dodgers have faced the Yankees eleven times, going 3 -- 8, while the Giants have faced the Yankees seven times, going 2 -- 5. Among North American major sports, the Yankees' success is approached only by the 24 Stanley Cup championships of the Montreal Canadiens of the National Hockey League. The Yankees have played in the World Series against every National League pennant winner except the Houston Astros and the Colorado Rockies.

paragraph_text: The Bulls saw their greatest success during the 1990s, when they were responsible for popularizing the NBA worldwide. They are known for having one of the NBA's greatest dynasties, winning six NBA championships between 1991 and 1998 with two three - peats. All six championship teams were led by Hall of Famers Michael Jordan, Scottie Pippen and coach Phil Jackson. The Bulls are the only NBA franchise to win multiple championships and never lose an NBA Finals series in their history.

paragraph_text: The San Antonio Spurs hold the longest active consecutive playoff appearances with 21 appearances, starting in the 1998 NBA Playoffs (also the longest active playoff streak in any major North American sports league as of 2017). The Spurs have won five NBA championships during the streak. The Philadelphia 76ers (formerly known as Syracuse Nationals) hold the all - time record for consecutive playoff appearances with 22 straight appearances between 1950 and 1971. The 76ers won two NBA championships during their streak. The Boston Celtics hold the longest consecutive NBA Finals appearance streak with ten appearances between 1957 and 1966. During the streak, the Celtics won eight consecutive NBA championships -- also an NBA record.

paragraph_text: Boston Celtics center Bill Russell holds the record for the most NBA championships won with 11 titles during his 13 - year playing career. He won his first championship with the Boston Celtics in his rookie year. Afterwards, he went on to win ten championships in the next 12 years, including eight consecutive championships from 1959 to 1966. He won the last two championships in 1968 and 1969 as player - coach. Russell's teammate, Sam Jones, won ten championships from 1959 to 1969, the second most in NBA history. Four Celtics players, Tom Heinsohn, K.C. Jones, Satch Sanders and John Havlicek, won eight championships each. Two other Celtics, Jim Loscutoff and Frank Ramsey, won seven championships each. Four players, Bob Cousy, Kareem Abdul - Jabbar, Michael Jordan and Scottie Pippen, won six championships each. Jordan and Pippen are members of the Chicago Bulls team who won three consecutive championships twice in the 1990s. George Mikan won two championships in the NBL before it merged with the BAA to form the NBA, and won five championships in the NBA.

paragraph_text: The 1971 NBA World Championship Series was the championship series played at the conclusion of the National Basketball Association (NBA)'s 25th anniversary season of 1970 -- 71. The Western Conference champion Milwaukee Bucks, who were founded just three years earlier, swept the Eastern Conference champion Baltimore Bullets in four games. Baltimore had dethroned the 1969 -- 70 NBA champion New York Knicks.

paragraph_text: In the late 1970s and early 1980s, the Blue Jays went through struggles typical of an expansion team, frequently finishing in last place in its division. In 1983, the team had its first winning season and two years later, they became division champions. From 1985 to 1993, they were an AL East powerhouse, winning five division championships in nine seasons, including three consecutive from 1991 to 1993. During that run, the team also became back - to - back World Series champions in 1992 and 1993, led by a core group of award - winning All - Star players, including Hall of Famer Roberto Alomar, Joe Carter, John Olerud, and Devon White. The Blue Jays became the first (and, to date, only) team outside the US to appear in and win a World Series, and the fastest AL expansion team to do so, winning in its 16th year. After 1993, the Blue Jays failed to qualify for the playoffs for 21 consecutive seasons, until clinching a playoff berth and division championship in 2015. The team clinched a second consecutive playoff berth in 2016, after securing an AL wild card position. Both years, the Jays won the AL Division Series but lost the AL Championship Series.

paragraph_text: The 2011 NBA Finals was the championship series of the National Basketball Association (NBA)'s 2010 -- 11 season, and the conclusion of the season's playoffs. The Western Conference champion Dallas Mavericks defeated the Eastern Conference champion Miami Heat 4 games to 2 to win their first NBA championship. Dallas became the last NBA team from Texas to win its first title, after the Houston Rockets won back - to - back titles in 1994 and 1995, and the San Antonio Spurs won four NBA championships in 1999, 2003, 2005 and 2007, and a fifth one subsequently in 2014; all three Texas NBA teams have now won at least one NBA championship. It was also the first time in four years that the Los Angeles Lakers did not make the Finals, having been swept in the Western Conference semifinals by the eventual champion Dallas Mavericks.

paragraph_text: The Cubs have appeared in a total of eleven World Series. The 1906 Cubs won 116 games, finishing 116 -- 36 and posting a modern - era record winning percentage of. 763, before losing the World Series to the Chicago White Sox (``The Hitless Wonders '') by four games to two. The Cubs won back - to - back World Series championships in 1907 and 1908, becoming the first major league team to play in three consecutive World Series, and the first to win it twice. Most recently, the Cubs won the 2016 National League Championship Series and 2016 World Series, which ended a 71 - year National League pennant drought and a 108 - year World Series championship drought, both of which are record droughts in Major League Baseball. The 108 - year drought was also the longest such occurrence in all major North American sports. Since the start of divisional play in 1969, the Cubs have appeared in the postseason eight times through the 2016 season.

Question: who has the most consecutive appearances in the competition that the 1986 NBA World Championship Series are part of?
Answer: The Boston Celtics