---
title: "Rebalances a leaderboard by adding responses for the given participants."
method: POST
path: "/leaderboard/{leaderboardId}/rebalance"
tags: ["Leaderboard"]
---

# Rebalances a leaderboard by adding responses for the given participants.

`POST /leaderboard/{leaderboardId}/rebalance`

Unlike the plain boost, which only generates matchups among the boosted participants,
 this matches each given participant evenly against every other participant of the
 benchmark — the same distribution a participant receives when it is first submitted.
 Use it to bring under-sampled participants up to the rest of the leaderboard.

## Path parameters

- `leaderboardId` string, required

## Request body

- RebalanceLeaderboardEndpointInput
  - `participants` string[], required — The participants of the given leaderboard that should receive responses.
  - `totalResponses` integer, required — The total responses to add, shared evenly across all given participants.
  - `seed` integer, nullable — Optional seed for deterministic matchup selection. Use the same value across leaderboards of a benchmark to have them boosted on the same image pairs. Omit for random selection.

## Response `204`

No Content

## Other responses

- `400` — Bad Request
- `401` — Unauthenticated
- `403` — Forbidden

---

[API](https://skmtc.net/rapidata/apis/rapidata-api.md) · [All operations](https://skmtc.net/rapidata/apis/rapidata-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/rapidata/rapidata-api/versions/e42ec51c7b88/schema)