Frequently Asked Questions about SC

The SC system is a system for competition, ranking – tournament organizing – sports talent discovery, focused on fairness, honesty and long-term development.

For players (school and university students, independent athletes), clubs, schools, Coaches and Organizers of grassroots – semi-pro tournaments.

No. SC is a measurement & ranking system; it does not replace the school's organizing role.

Besides the win–loss result and the SC gap between the two players, SC also counts recent form. Trust Score and Behavior Score do not change the SC points of a match.

Yes. SC is designed for multiple sports: Tennis, Badminton, Table Tennis, Pickleball, Chess, Billiards…

It is the long-term personal identifier of each person in the SC system.

Yes. You sign in with your username or email, or with Google/Apple. A phone number is not required.

Yes. Passwords are encrypted, and SC collects only the data it needs.

No. SC allows only 1 valid profile.

You can add the phone number to your profile if you want. You do not need to change accounts; your points and history stay the same.

Schools, clubs and Organizers with an Organizer account approved by SCVN. City and national tournaments, and tournaments for LV4 and above, are created by SCVN.

No. Only official SC tournaments approved by SCVN count.

Club, school, ward, city and national tournaments, both official SC tournaments and friendlies.

Yes. SC creates the groups and assigns courts and times from the details the Organizer enters. The Organizer can adjust them before play.

There is no option yet to avoid the same class or school automatically. The Organizer can adjust the pairings before play.

For a challenge: both players accept, check in by GPS and agree on the result. QR is needed only on matches that require it. Photos are needed only when a player at LV4 or above is involved.

Only when a player at LV4 or above is involved. Trust Score plays no part in this.

Yes. In a challenge, a player enters the score and the opponent confirms the result. If it is wrong, the opponent changes it and the first player reviews it: if they agree it counts; if not, both enter the result again one last time, and if they still disagree the match is cancelled. In a tournament, the Organizer enters the result. Every result has a log.

Yes, but only for player lists and tournament information. Match results cannot be imported from Excel.

To prevent fake tournaments – fake points – edits after the tournament.

It is a score that rates a player's credibility and honesty.

Only a GPS mismatch at check-in reduces Trust. Trust rises with on-time check-ins, no GPS errors, regular play, or matches verified by a Coach or referee. Cancelling a match, disputes and appeals do not reduce Trust.

Trust does not change the SC points of a match. If Trust falls too low, challenges are locked for a time and Rank Freeze applies: no challenges, no SC points and no level-up until it ends.

It is the conduct score, 100 by default. It only drops by 5 for each check-in with a GPS mismatch of more than 200 m; wins, losses and the number of matches do not change it.

No. Behavior Score does not deduct SC points and does not block tournament entry.

Through GPS at check-in, QR on matches that require it, photos on matches with a player at LV4 or above, match frequency and unusual results.

Yes. Matches over the limit are saved with SC 0. Repeated point farming brings a warning, then a temporary challenge lock.

No. SC prioritizes freezing – investigating – educating.

Yes. Players and schools have the right to appeal.

No. Everyone has the same SC calculation, and all handling is based on logs and the regulations.

Challenges update at once when the opponent confirms the result. SC tournaments apply after SCVN's admin approves the tournament. Boards by week, month and so on update daily.

Yes. The leaderboard can be filtered by sport, level, period, province, organization, school, club, gender and verification status. There is no filter by class or district yet.

Yes. The New Stars section of the leaderboard shows the players whose SC rose the most in the last 30 days.

No, not while the account exists. If the account is deleted, match and ranking data stays only in anonymised form.

Yes. Schools/clubs use SC as reference data.

There are match results, tournament rankings and certificates for the winners. For SC tournaments, the Organizer submits photos and a signed report for SCVN to approve.

Yes, through their child's account or through the school. The SC PDF is an organization summary report, not a report on an individual student.

Once a tournament has ended or been approved, only SCVN's admin can change it. Every change has a log; nothing is edited silently.

Yes, for tournaments organized by the school.

Yes, when the account is deleted. Personal information is removed; match and ranking data stays anonymised. See question 55.

It is not required. A citizen ID card is used only when the user declares it or when identity verification is needed. In that case, send a photo of your citizen ID card or student card to support@scvn.vn, or verify through your school.

No. SC follows the principle of data minimization.

No.

No.

To build a fair – sustainable competitive environment.

At most 3 challenge matches count for SC points per day, and 16 in 30 days. Matches over the limit are still saved with SC 0. Tournament matches do not count towards this limit.

Yes.

Yes. The app has Vietnamese and English. The website also has an English version.

Playing and earning SC points are free. The Pro Plan is VND 99,000 and Elite is VND 199,000 for 12 months, with no auto-renewal; money never buys SC points, level or rank. Schools can buy by contract. Court, course and tournament fees are collected by those units.

Fairness – Honesty – Long-term development.

Yes, but each person must log in to their own account. Two accounts on the same device cannot challenge each other. LV1–LV3 matches can use Single-phone mode.

Tap “Forgot Password?” on the login screen and SCVN will send a reset link to your email.

Yes. SC keeps the previous school history to ensure transparency.

Yes. Points and history are kept when you move up, as long as the account exists.

Yes. In the app go to Profile → Edit Profile → Delete Account; it takes effect immediately. A request by email is handled within 30 days at most. In the app, your name, email, phone number, photo, date of birth and linked Google/Zalo/Facebook accounts are removed at once; match and ranking data stays anonymised. To also delete messages, match photos, your ID number and other data, email support@scvn.vn. See the Data Deletion page for details.

Yes, to prevent point farming and protect the health of players: at most 3 challenge matches count for SC points per day. Matches over the limit are still saved with SC 0.

Yes. With the same opponent, at most 2 matches a day count for SC points by default (SCVN can adjust this), 3 a week, and 12 in the same sport in 30 days. Matches over the limit are still saved with SC 0.

You may. LV1–LV4 players who do not play for a long time are reminded first, then lose SC points step by step and may drop a level. Time on approved leave in the app does not count.

No. A cancelled challenge does not count for SC points. In a tournament, only matches with a result recorded by the Organizer count.

No. Friendly tournaments do not count for SC points. Only singles matches of an approved SC tournament count.

Only when the Organizer adds them as a tournament manager. Every change has a log.

Yes, for matches not yet completed. A completed match cannot be deleted; only its result can be corrected while the tournament still allows it.

Yes, for tournaments held under the school's name.

Yes. The tournament creator can add other managers.

The Organizer can correct it while the tournament has not ended or been approved, except for rounds played well before. After that only SCVN's admin can change it. Every change has a log.

It can have a temporary effect, such as being hidden from the leaderboard during review. A flag is not a finding of cheating.

There is no fixed length. Only SCVN's admin turns Shadow Freeze on and off. For each match with SC points held, the player has 72 hours to appeal.

It can, which is why SC always gives the right to explain.

No. SC has no teacher-confirmation flow yet. The player sends an appeal and SCVN's admin reviews it.

No. SC uses automatic rules and review by SCVN's admin; it does not use AI yet.

Yes.

Yes. Losing to a weaker player costs more. Losing to a much stronger player costs little.

There is no expiry date. But LV1–LV4 players who do not play for a long time lose SC points step by step. Time on approved leave does not count.

Not yet. The leaderboard can be filtered by year, quarter, month, week, 30 days and 90 days, but not by school year.

Not yet.

There is no parent account yet. Parents follow through their child's account or through the school.

No.

Not yet. Notifications go only to the player's account.

Send a review request through the school/Organizer.

No, only the permitted parts are public.

There is no offline mode yet. The app needs a network connection to work.

The result is not sent. When the network is back, enter and send it again.

There is no API for schools yet.

Not yet. Schools can send a student list in an Excel file for SCVN to import.

Yes. Data is backed up before each system update.

Not yet.

Yes.

SC references international standards but is optimized for Vietnam.

Not yet. SC has no separate data export for the Federation.

Digital certificates can be exported.

No. SC prioritizes sustainable development.

SC is designed to reduce pressure and avoid heavy penalties.

It evaluates the process + the result.

No.

Yes, through Trust Score and the anti-cheating rules.

Both.

It can.

Yes. Users must be at least 11 years old. Anyone under 18 needs the consent of a parent or guardian.

It can, but always with prior notice.

Honest competition – Sustainable development – Long-term partnership with players.

The SC system is a fair – transparent – anti-cheating sports ranking and tournament-organizing system, designed specifically for students and grassroots players.

It tackles fake tournaments, fake points, point farming and cheating, while helping to discover and develop school sports talent.

No. Players can still compete and earn official points without a phone number.

With your username or email, or with Google/Apple.

Yes. Passwords are encrypted, and SC collects only the data it needs.

You can add the phone number to your profile if you want. You do not need to change accounts; your points and history stay the same.

No. Each person has only 1 valid SC profile.

Only official SC tournaments, created by an Organizer approved by SCVN, with photos and a signed report, and approved by SCVN after the tournament.

No. This helps SC stop fake points from the start.

SC uses GPS at check-in, QR on matches that require it, photos on matches with a player at LV4 or above, confirmation of the result by the opponent, system logs and behavior analysis.

No. Excel files are used only for player lists and tournament information.

To prevent results from being edited and fake tournaments from being legitimized after play.

Trust Score measures a player's honesty and credibility, not their skill level.

There is no permanent ban. If Trust falls too low, challenges are locked for a time and Rank Freeze applies. When it ends, play goes back to normal.

No. SC prioritizes education – warnings – a chance to make things right.

SCVN's admin can turn on Shadow Freeze for that player: the match is still saved but its SC points are held, and the player has 72 hours to appeal. The system never turns it on by itself.

Yes. Players and schools always have the right to explain and appeal.

Yes. Schools can see all data for the tournaments they organize.

Yes, through their child's account or through the school. The SC PDF is an organization summary report, not a report on an individual student.

No. SC is only a tool for measurement & transparency.

SC makes public only profile and ranking information, according to the player's settings. For players under 16, people outside the app cannot see the profile, and the name on the leaderboard is shortened.

Never.

SC supports multiple sports: Tennis, Badminton, Table Tennis, Pickleball, Chess, Billiards…

Very suitable, because a phone number and a citizen ID card are not required, in keeping with the spirit of education.

Fair competition – Honesty – Sustainable development for players.

Yes. The school or Organizer is the unit that creates the tournament, confirms the list and is responsible for organizing it.

Yes. Schools have the right to access all data for tournaments held under their name.

Yes, while the tournament has not ended or been approved. Every edit has a log: who made it, the old result and the new result.

SC allows corrections within the set period, with no silent edits.

Only when the Organizer adds them as a tournament manager, and every change is fully traced.

It must be an official SC tournament, created by an Organizer approved by SCVN, with photos and a signed report, and approved by SCVN after the tournament.

Through GPS at check-in, QR on matches that require it, photos on matches with a player at LV4 or above, system logs and match behavior analysis.

No. SC prioritizes freezing points – verifying – educating, to avoid wrongful penalties.

SCVN's admin can turn on Shadow Freeze for that player: the match is still saved but its SC points are held, and the player has 72 hours to appeal. The system never turns it on by itself.

No. It is only a temporary observation status.

It can, which is why SC always gives players and schools the right to explain.

There is no teacher-confirmation flow for lifting frozen points. Coaches and referees authorized by SCVN can verify a completed match, which adds Trust, but this does not lift frozen points.

Yes, through their child's account or through the school. The SC PDF is an organization summary report, not a report on an individual student.

No. There is no parent account yet, and parents cannot change results.

Send a review request through the school or the tournament Organizer.

SC makes public only profile and ranking information, according to the player's settings. For players under 16, people outside the app cannot see the profile, and the name on the leaderboard is shortened. A citizen ID card is not required.

Never.

Yes. You sign in with your username or email, or with Google/Apple, so you do not need to give a phone number.

Yes. Match history and SC points are kept while the account exists.

Very suitable. SC is designed around a philosophy of education – honesty – sustainable development.