How do my orders get matched?

When a customer places a back order, it tries to match it with a corresponding lay order at the same price.

As can be seen from the above, the prices that are available for backing are in blue and the prices available for laying are in red.

If a customer comes along and wants a higher price for Qatar to win, they can enter it.

This then links it to available lays, in this case the back order can be matched as there are already orders for that price.

If a customer backs a price that isn't matched then the order stays unmatched as shown in the Ecuador example below.

The customer in this example has requested a back order with odds of 15 (when current odds are 1.1) so this won't be fulfilled.

Orders can also be partially matched so, for an example a back order of 1000 may only be partially matched and therefore only 500 is matched and is eligible for winnings, the rest will remain unmatched and be returned to the user.

Matching is designed to match at the best price possible for those orders.

Matching is also facilitated by off-chain cranking.