> ## Documentation Index > Fetch the complete documentation index at: https://padelapi.org/docs/llms.txt > Use this file to discover all available pages before exploring further. # Show Pair Synergy > Retrieve whether a pair beats the sum of its parts: the win rate its two players were expected to reach together from their Elo ratings, the one they actually reached, and the gap between both, with its evolution by quarter. > 🔒 This endpoint [requires a **Business** subscription](https://padelapi.org/billing). Scoped to every match the pair has played together by default. Qualification matches count, since the expectation already accounts for the level of the opponents. The [form and synergy guide](https://padelapi.org/docs/guides/padel-form-and-synergy) explains how to read every field. ## OpenAPI ````yaml https://padelapi.org/docs/api.json get /pairs/{player1}-{player2}/synergy openapi: 3.1.0 info: title: Padel API – API Reference version: '1.0' description: padelapi.org servers: - url: https://padelapi.org/api security: - http: [] paths: /pairs/{player1}-{player2}/synergy: get: tags: - Pair summary: Show Pair Synergy description: >- Retrieve whether a pair beats the sum of its parts: the win rate its two players were expected to reach together from their Elo ratings, the one they actually reached, and the gap between both, with its evolution by quarter. > 🔒 This endpoint [requires a **Business** subscription](https://padelapi.org/billing). Scoped to every match the pair has played together by default. Qualification matches count, since the expectation already accounts for the level of the opponents. The [form and synergy guide](https://padelapi.org/docs/guides/padel-form-and-synergy) explains how to read every field. operationId: getPairSynergy parameters: - name: player1 in: path required: true description: The player1 ID schema: type: integer - name: player2 in: path required: true description: The player2 ID schema: type: integer - name: after_date in: query description: Date after to measure the synergy in `YYYY-MM-DD` format. schema: type: - string - 'null' format: date - name: before_date in: query description: Date before to measure the synergy in `YYYY-MM-DD` format. schema: type: - string - 'null' format: date - name: level in: query description: >- Tournament level(s) to scope the synergy. Accepts one or multiple comma-separated values (e.g. `major,p1,p2` for all Premier Padel matches) or repeated parameters (e.g. `level[]=major&level[]=p1`). schema: type: string - name: round in: query description: >- Round of the match to measure the synergy (1 = Final, 2 = Semifinal, 4 = Quarterfinal, 8 = Round of 16, 16 = Round of 32, 32 = Round of 64) schema: type: - integer - 'null' enum: - '1' - '2' - '4' - '8' - '16' - '32' responses: '200': description: '`PairSynergyResource`' content: application/json: schema: $ref: '#/components/schemas/PairSynergyResource' '401': $ref: '#/components/responses/AuthenticationException' '404': $ref: '#/components/responses/ModelNotFoundException' '422': $ref: '#/components/responses/ValidationException' components: schemas: PairSynergyResource: type: object properties: id: type: string description: >- Identifier of the pair, as the two player ids joined by a hyphen (e.g. `65-66`). self: type: string description: Path to this endpoint, relative to `https://padelapi.org`. expected_win_rate: type: - number - 'null' description: >- Win rate the pair was expected to reach together, as a percentage rounded to two decimals, from the Elo ratings of all four players at the time of each match. `null` when no matches are counted. actual_win_rate: type: - number - 'null' description: >- Win rate actually achieved together over the same matches, as a percentage rounded to two decimals. `null` when no matches are counted. delta: type: - number - 'null' description: >- `actual_win_rate` minus `expected_win_rate`, in percentage points. Positive means the pair beats the sum of its parts. `null` when there are too few matches for the gap to mean anything. matches_played: type: integer description: Matches together behind the numbers above, qualification included. by_period: type: array description: >- The same values by calendar quarter, oldest first, so a partnership can be seen settling in or wearing out. Quarters without matches together are left out. items: type: object properties: from: type: string to: type: string expected_win_rate: type: - number - 'null' actual_win_rate: type: - number - 'null' delta: type: - number - 'null' matches_played: type: integer required: - from - to - expected_win_rate - actual_win_rate - delta - matches_played trend: description: >- Direction of `delta` across `by_period`. `null` when too few periods have a `delta` to tell. anyOf: - type: 'null' - type: string enum: - rising - stable - declining connections: type: object description: Related endpoints for this synergy. properties: pair: type: string description: Profile of the pair this synergy belongs to. required: - pair required: - id - self - expected_win_rate - actual_win_rate - delta - matches_played - by_period - trend - connections title: PairSynergyResource responses: AuthenticationException: description: Unauthenticated content: application/json: schema: type: object properties: message: type: string description: Error overview. required: - message ModelNotFoundException: description: Not found content: application/json: schema: type: object properties: message: type: string description: Error overview. required: - message ValidationException: description: Validation error content: application/json: schema: type: object properties: message: type: string description: Errors overview. errors: type: object description: A detailed description of each field that failed validation. additionalProperties: type: array items: type: string required: - message - errors securitySchemes: http: type: http scheme: bearer ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.