SEA GAMES 33 / ARENA OF VALOR

The Arena of Valor cheating case at SEA Games 33

During Thailand's women's Arena of Valor match against Vietnam on 15 December 2025, player Naphat "Tokyogurl" Warasin was found to have let another person log into her competition account and play for her. She was expelled, Thailand's women's team withdrew, Garena banned her, and on 17 March 2026 a Thai court sentenced both her and the stand-in player.

Resolved Started Updated

Đỗ Kỳ Duyên (Celine) playing for Vietnam's women's Arena of Valor team at SEA Games 33 — Thailand's opponent in the match where the incident occurred.
Đỗ Kỳ Duyên (Celine) playing for Vietnam's women's Arena of Valor team at SEA Games 33 — Thailand's opponent in the match where the incident occurred. Photo: Huatien11, CC0

At a glance

Status
First-instance verdict issued
Sporting sanctions
Expelled from SEA Games; Garena lifetime ban
Criminal sentence
3 months + THB 24,000; appeal pending

Timeline

  1. Context

    Competition account details shared

    According to case details published later, Naphat shared her competition account credentials with Kong "Cheerio" Sutprom, who had been hired to help with her social media.

  2. Events

    Thailand vs Vietnam: two devices on one account

    During the match against Vietnam at Chulalongkorn University in Bangkok, referees paused play and warned the Thai team about unauthorised Discord use on competition devices. Organizers detected Naphat's account logged in on two devices at once. Thailand lost (0–3 per VnExpress).

  3. Decisions

    Expulsion and withdrawal of Thailand's women's team

    Organizers expelled Naphat under item 9.4.3 of the Esports Technical Handbook (unauthorised third-party software). The Thailand E-Sports Federation (TESF) accepted the decision and withdrew its whole women's team. Talon ended her contract, and Garena, the game's publisher in Thailand, banned her from competition.

  4. Notices

    Reactions in Thailand

    Naphat initially denied cheating, saying she was nervous and would have won had she cheated. TESF president Santi Lothong said "cheating and still losing is shameful". Vietnam went on to win gold, beating Laos 4–0.

  5. Notices

    The stand-in player confesses

    Kong Sutprom publicly admitted his involvement and apologised for bringing shame on Thailand.

  6. Decisions

    Arrest and charges

    Thailand's Central Investigation Bureau (CIB) arrested both on 4 February; on 6 February charges of colluding to obtain and disclose restricted computer-access credentials were filed at Pathumwan Kwaeng Court.

  7. Decisions

    Sentencing

    Both pleaded guilty. The court imposed three months' confinement (reduced from six for cooperation) and a THB 24,000 fine. Both were released on bail pending appeal.

Where each side stands

Organizers & TESF

  • The conduct breached item 9.4.3 of the Esports Technical Handbook.
  • TESF accepted the decision, withdrew the women's team and stressed that "fair play is the supreme value".
VnExpress →

Naphat "Tokyogurl"

  • Initially denied it, citing nerves.
  • Later pleaded guilty in court alongside the stand-in player.
Wikipedia →

Kong "Cheerio" Sutprom

  • Admitted logging in and playing on 2 January 2026.
  • Publicly apologised for embarrassing Thailand.

Open questions

  • The outcome of the appeal.
  • The coaching staff's responsibility — per Kênh 14, the coach said he "did not know".
  • How device checks at multi-sport games will change.

Scamany compiles public sources and presents each side next to the others; nothing here is a finding by Scamany.

Impact

Thai esports

One of the biggest scandals in Thai esports, forcing the whole women's team out and sparking debate about player supervision.

Legal precedent

A rare case of esports cheating ending in a criminal sentence, showing that sharing competition accounts can breach computer-crime law.

Vietnam

Vietnam's women's team won the match in question and took gold; the case drew huge attention in Vietnam.

People

Naphat "Tokyogurl" Warasin

Thai women's Arena of Valor player (marksman)

Expelled from SEA Games 33, banned by Garena and sentenced on 17 March 2026.

Scamany does not publish a personal photo.

Kong "Cheerio" Sutprom

Stand-in player

Confessed on 2 January 2026; sentenced alongside Naphat.

Đỗ Kỳ Duyên (Celine)
Photo: Huatien11, CC0

Đỗ Kỳ Duyên (Celine)

Vietnam women's Arena of Valor player

Member of the Vietnamese team — Thailand's opponent in the match — which went on to win gold.

Sources

  1. Arena of Valor SEA Games cheating scandal Wikipedia · 2026
  2. Thai esports player expelled from SEA Games (Vietnamese) VnExpress · December 16, 2025
  3. Thailand sues AoV player for SEA Games cheating (Vietnamese) Tuổi Trẻ Cười · December 20, 2025
  4. Thai captain recalls Tokyogurl's unusual behaviour (Vietnamese) Dân trí · December 17, 2025
  5. Coach says he "did not know" (Vietnamese) Kênh 14 · December 18, 2025
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