• Teams and members: The competition plans to recruit 8-12 teams, each team consists of 5-7 people, including at least 1 female player. | 队伍和队员：本次比赛计划招募8-12支队伍，每组报名人数为5-7人，必须有至少一名女队员。
• The tournament items:  men's singles, men's doubles and mixed doubles. | 比赛项目：男子单打、男子双打、混合双打三项比赛。
• Awards: team champion, runner-up, the second runner-up, champion of the repechage and the participation adwards. | 奖项设置为：团体冠、亚、季军，复活赛冠军以及参与奖。

The registration opens to | 本次比赛对以下人员开放报名：

• DUSA member companies | DUSA会员公司；

• DUSA Individual members and employees from member companies who don't have enough players are welcome to join in our DUSA-All-Star-Team. | 另外，我们欢迎DUSA个人会员和无法凑足整只球队的会员公司员工以个人名义报名参加"DUSA全明星队"

Registrants shall confirm their participation by sending the entry form (see Annex), pay and appoint a team captain (for team registrants) before the deadline: November 2nd, 2025. | 报名者请于2025年11月2日前完成报名手续。报名手续包括：填写报名表格（见附件），支付报名费用并任命队长（针对团队报名）。

• Scoring System | 计分体系：

On group stage | 小组赛阶段

1. Only one set for each game. The set is played until one player or team reaches 21 points, with a minimum two-point advantage. If the score reaches 20-20, the player or team must win by a two-point margin or the first player or team to reach 30 points wins the set. Court will be switched after 11 points. | 一局定胜负，比赛为21分制，11分后交换场地，先到21分者且比分至少要有两分相差者获胜。如果比分为20比20， 就需要继续比赛直至两队比分有2分差异或者其中一队率先达到30分。
2. In the group stage, each game needs to complete three items: men's singles, men's doubles and mixed doubles. | 小组赛阶段，每一局比赛都需要完成男子单打，男子双打和混合双打三个项目。

On Knockout/Repechage stage | 淘汰赛/复活赛阶段

1. Three sets for each game. The 11 points system will be implemented for all competitions without chasing points. | 三局两胜制，每局11分且不加分。即率先达到11分的球队即为获胜。
2. Each team needs to complete with each other for 1 man's single.1 men's double and 1 mixed double. If a team wins in both the man's single and the men's double, the mixed double will not be played, and the team will advance to the next round directly. | 两队比赛时，需要完成1场男子单打，1场男子双打及1场女混合双打。如果一队在男子单打和男子双打项目上都获胜了，就可以不用进行混合双打，直接晋级。

• Points | 得分规则：

On group stage | 小组赛阶段

1. Teams in each group will play each other once in a round robin format. Teams earn 1 point for a win and 0 point for a loss. Teams in each group will then be ranked according to points. | 每组各小组将以循环赛的形式进行一次比赛。获胜积1分，失利积0分。
2. The two teams with the highest points in the group compete in the knockout, while the remaining two teams compete in the repechage. | 小组中积分最高的2只队伍出线参加晋级赛，剩下两只队伍参加复活赛。
3. The promotion criteria: winning games > total score of the team > small score between two teams |晋级标准：比赛获胜场数>队伍总积分>两队对阵小比分。

      On Knockout/Repechage stage | 淘汰赛/复活赛阶段

1. Knockout：The group winner will play with the second other group, and the schedule will be determined by drawing on the spot.| 淘汰赛：小组第一将对阵其他小组的第二，具体比赛安排现场抽签决定。
2. Repechage: The 3rd winner of a group will play with the last of other group and the schedule will be determined by drawing on the spot. | 复活赛：小组第三将对阵其他小组的第四，具体比赛安排现场抽签决定。 
3. Winners go through, losers go out. | 球队：获胜者出线，失利者淘汰。

• At the end of each match, the referee and the players of both sides sign to confirm the result of the match. | 每场比赛完毕，由裁判员和双方运动员签字确认比赛结果。
• All players on the field must be on the registration form. The athlete's identification needs to be checked before the game. No substitutions are allowed during a game. | 所有参加比赛的球员都应该是在报名名单上的人员，比赛前需要确认运动员的身份信息与报名信息相符。在一场比赛中，不能换人。
• Badminton rackets for competitions need to be provided by athletes themselves. The organizer will provide shuttles. | 羽毛球拍由运动员自备，组织方提供羽毛球。
• All referee decisions are final. | 裁判的判决是最终的。
• Timing: Please ensure that your team is ready on the court 5min before the schedule; 5 minutes delay will be considered as abstaining (0 point). | 时间安排：请确保您的团队在赛程前5分钟准备就绪；迟到5分钟将被视为放弃比赛（积0分）。
• Disciplinarian Action: Any ungentlemanly conduct will be ruled by the DUSA tournament organizer; Profanity in any language is discouraged. | 纪律处分：任何不文明行为均由赛事主办单位处理；不鼓励任何语言上的侮辱。

•  Venue Rules | 场地规则: 

1. On-site spectators, please stay in the auditorium and do not enter the competition courts. Children under 18 years of age should be supervised by adults/parents; | 现场观赛人员，请在观众席文明观赛，不要进入比赛场地，18岁以下儿童请由成年家长看护，并确保安全。
2. Smoking is strictly prohibited on campus and on the internal service driveway outside the school gate. If you need to smoke, please proceed to the main road beyond the driveway. | 学校及学校门口那条内部停车道路都禁烟，如果您有抽烟需求，请移步到停车道路外面的大路上。