> For the complete documentation index, see [llms.txt](https://docs.sportradar.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sportradar.com/uof/custombet-cb/api/void-recalculation/endpoint.md).

# Endpoint

<a href="https://iodocs.betradar.com/?urls.primaryName=Unified%20Feed%20Integration#/CustomBet%20API/calculateProbabilityVoid" class="button primary" data-icon="rectangle-api">Try the API</a>

## Calculate probability with void selections

> Calculates probability and odds for a CustomBet and returns the original calculation together with all possible void combinations.

```json
{"openapi":"3.0.3","info":{"title":"Betradar CustomBet API","version":"1.0.0"},"servers":[{"url":"https://global.api.betradar.com/v1"}],"security":[{"key":[]}],"components":{"securitySchemes":{"key":{"type":"apiKey","in":"header","name":"x-access-token"}}},"paths":{"/custombet/calculate-void":{"post":{"summary":"Calculate probability with void selections","description":"Calculates probability and odds for a CustomBet and returns the original calculation together with all possible void combinations.","operationId":"calculateVoid","tags":["CustomBet API"],"parameters":[{"name":"Content-Type","description":"The content type of the request body.","in":"header","required":true,"schema":{"type":"string"},"default":"application/xml"}],"requestBody":{"required":true,"content":{"application/xml":{"schema":{"type":"object"}}}},"responses":{"200":{"description":"successful operation","content":{"application/xml":{}}},"400":{"description":"Bad request","content":{"application/json":{}}},"401":{"description":"Unauthorized","content":{"application/json":{}}},"403":{"description":"Access denied","content":{"application/json":{}}},"500":{"description":"Internal server error","content":{"application/json":{}}}}}}}}
```


---

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