I. Development history
1, 1995 CBA League (League A) was founded with 12 teams. Every year, the last two teams in the league are relegated to the second division, and the first two teams in A are promoted to the 12 team in A.1995. Half of them are from basketball teams in various military regions, including Bayi Team, jinan military area command Team, shenyang military area command Team, Air Force Team, Nanjing Military Region Team and the former Guard Team.
2. The Air Force was dissolved in 1998. Later, with the disarmament order, many military sports teams were laid off and transformed. Shenyang military area command team became Zhejiang Guangsha team, and jinan military area command team became Qingdao team. Sichuan Lan Jian Team is the first CBA team to introduce foreign teachers. 1999 was dissolved immediately after being demoted.
3. Hubei Meierya Team 1999-2000 was upgraded and disbanded after demotion. In the same year, the guard announced its dissolution. In 200 1 year, the headquarters of Taiwan Province Sina Lions Team was located in Suzhou, but it was demoted in 2003 and then left CBA. Shenzhen Runxun Team, the predecessor of Hong Kong Dragonfly Team, was upgraded on 200 1 and downgraded the following year. Changed its name to Hong Kong Dragonfly Team, and then returned to CBA. Completely defeated in the season, demoted and then dissolved.
4. 2065438+On July 19, 2003, chinese basketball association announced the relevant documents of NBL club's application to join CBA, requiring that the registered capital of the team must reach more than 20 million yuan. In addition to ensuring the capital adequacy ratio in the next three seasons, the new team joining CBA should also pay a naturalization fee of 35 million yuan and a deposit of 2 million yuan.
5.20 14 On September 3rd, chinese basketball association held the CBA League Committee in Tianjin, and voted to confirm that Jiangsu Tongxi Team and Chongqing Aolong Team would join the CBA League. So far, the number of CBA teams has increased from 18 in the 20 15 season to 20 teams. On July 29th, 20 19, CBA draft was held in Shanghai.
Second, the competition method
The competition is divided into two stages: the regular season and the playoffs. The home and away game system is adopted, and two-week and five-week games are combined with one-week and three-week games.
1, regular season
All participating teams play a double round robin, winning one game will get 2 points, losing one game will get 1 point, and abstaining will get 0 point.
Regular season ranking method:
In the regular season, the overall ranking of the regular season is determined according to the ratio of winning/losing times, and the one with the highest winning rate ranks first.
If the winning percentage of the two teams is the same, the ranking will be decided by the victory or defeat of the two teams, and the winner will rank first; If they are the same again, they will be ranked according to the scoring rates of the two teams, with the highest scoring rate ranking first; If they are the same again, they will be ranked according to the total scoring rate of all games in the regular season, with the highest scoring rate ranking first.
2. Playoffs
The top eight players in the regular season entered the playoffs. Cross elimination is adopted in the playoffs. The quarter-finals and semi-finals adopt the best-of-five system (1-2-1-kloc-0/), and the championship finals adopt the best-of-five system (2-3-2). The team ranked first in the regular season has an extra home.
In the (1) 2017-20 18 season,18 teams will enter the playoffs. Starting from the 20 18-20 19 season, the number of CBA playoff teams will increase to/.
(2) In terms of specific competition system, in the 20 17-20 18 season, the top six teams in CBA regular season had a bye in the first round of the playoffs, and the 7- 10 team won the cross-elimination, so the top team had home advantage. In the final of 1/4, eight teams will play the best-of-five cross-elimination. The semi-finals and finals adopt the best-of-seven system.
(3) In the 2018-2019 season, the playoff team was further expanded to 12. The top four teams in the regular season had a bye in the first round of the playoffs, and the 8 teams of 5- 12 * * * played a 3-win and 2-loss cross-elimination match. Top teams have home court advantage. 1/4 adopts the best-of-five system in the final, and the best-of-seven system in the semi-final and final.
Third, competition facilities.
cup
1.CBA championship trophy-"Mou Zuoyun Cup" was commissioned by chinese basketball association. Wei Changhai, a master of arts and crafts in China, is also a master of making the emblem "China Seal" and the giant seal "Treasure of China" of the 2008 Beijing Olympic Games. Since the end of 2004, he has been making championship trophies for CBA league.
2. The trophy weighs about 7.4 kilograms, is 35 centimeters high, and the base is a square with a side length of 22 centimeters. The front of the base is engraved with the words "China Basketball Supreme Ding" and "CBA League Champion Mou Zuoyun Cup"; On the back of the base is the pattern of "Basketball Face" in the new logo of CBA league, and the promotion slogan of "Creating supreme glory and embedding the dream of championship".
3. The champion of CBA League will receive the "Supreme Ding of CBA Championship" by mobile means, and each champion will receive a "Supreme Seal of China Basketball" mounted according to the traditional painting and calligraphy in China.
Official ball
Since the 1 and 2009-20 10 seasons, Nike has fully sponsored CBA league balls. The elite champion basketball of Nike Elite Championship used in CBA league matches adopts a four-ball leather design, which makes the lines on both sides of the ball body clear, thus reducing the interference of the ball on the opponent's hand, and is beneficial for athletes to quickly adjust and complete shooting after receiving the ball.
2. The composite leather layer composed of microfibers provides a soft and comfortable touch for the ball. The design of wide edges helps fingers to master different parts of the ball, improves the accuracy of athletes' catching, passing and shooting, and deepens the particle treatment, so that the ball skin can maintain good adsorption and touch for a long time.