---
title: "Disqualify a tournament participant"
method: POST
path: "/tournaments/{identifier}/participants/{participantId}/disqualify"
tags: ["Tournament: Registration"]
---

# Disqualify a tournament participant

`POST /tournaments/{identifier}/participants/{participantId}/disqualify`

Disqualifies a participant and propagates the result through a running bracket: the opponent advances by walkover and the disqualified team's linked matches are terminated. Re-read the bracket afterwards rather than assuming the previous shape, and do not assume a fixed walkover score - the applied scoreline depends on the node's format and any head start. The team's outbound free-agent offers are expired and its picked-up free agents are released. `reason` is required and is quoted to the disqualified captain. Requires the tournaments registration capability and MANAGER authority - a tournament MODERATOR qualifies.

## Path parameters

- `identifier` string, required — Tournament slug.
- `participantId` string, required — Tournament participant ID.

## Request body

- TournamentDisqualifyParticipantBody — Participant disqualification payload.
  - `reason` string, required — Required reason for the disqualification.

## Response `200`

The participant was disqualified.

- TournamentWriteAck — Acknowledgement returned by the tournament write endpoints whose backing operation has nothing to return - the organizer writes (endpoints 22-34), the team roster writes (40, 41), and the competitor self actions that neither mint nor resolve a row (38, 39, 44, 45, 47). Endpoints that mint a row answer with that row's id instead, and the two respond endpoints (42, 46) answer with the decision they recorded.
  - `success` true, required — Always true; failures are error responses.
  - `timestamp` string, required — Response generation time (ISO 8601).

## Other responses

- `400` — Bad request (invalid body, cursor, limit, or date).
- `401` — Missing or invalid API key.
- `403` — API key lacks the required permission.
- `404` — Resource not found.
- `429` — Rate limited.
- `500` — Internal server error.

---

[API](https://skmtc.net/teambattles/apis/teambattles-api.md) · [All operations](https://skmtc.net/teambattles/apis/teambattles-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/teambattles/teambattles-api/revisions/2ffe8fb53b7d/schema)