> 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/live-competition-odds/live-odds-formula-1/formula-1-c-odds-amqp-messages.md).
# Formula 1 C-Odds AMQP messages
**fixture\_change messages:**
```xml
```
**Note**
Once we add a new Formula 1 stage (race, qualifying or practice) to our Live Odds program, a fixture\_change message for the affected sr:stage:\ will be delivered (example above).
**odds\_change messages:**
The current status of the respective stage (race, qualifying or practice session) is reflected in the match match\_status attribute.
Possible statuses are:
* \
* \
* \
* \
* \
* \ // used in qalifying only
The current lap of the leading driver is indicated via the period\_of\_leader attribute which is similar to the match\_status sitting in the \ element.\
Configurable attributes to be included in odds\_change messages in :
odds_change code example
```xml
```
{% hint style="info" %}
**Note**
The market "Winner" (UOF market id 1110) is usually delivered with 20 outcomes reflecting all drivers who are participating in the race, qualifying or practice. If there is a short notice change of a driver especially during practice, we will deactivate the affected driver (outcome) and will add an additional outcome reflecting the driver who was substituted in. Of course all outcomes which were offered during the life cycle of the market will be included within the final settlement message.
{% endhint %}
bet_settlement messages:
```xml
```
Additionally also the following message types are supported for **Formula 1 sr:stage events**:
* bet\_stop: [UOF - Bet stop](/uof/data-and-features/messages/event/bet-stop.md)
* bet\_cancel: [UOF - Bet Cancel](/uof/data-and-features/messages/event/bet-cancel.md)
* rollback\_bet\_cancel: [UOF - Rollback Bet Cancel](/uof/data-and-features/messages/event/rollback-bet-cancel.md)
* rollback\_bet\_settlement: [UOF - Rollback Bet Settlement](/uof/data-and-features/messages/event/rollback-bet-settlements.md)
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