There are multiple contract statuses that can be view on the Contract Manager. Click "Contracts" in the left navigation bar to reach the page.
Below is a list of each status and their subsequent meaning:
Pending- Pending opponent signature
Completed- Both parties have signed
Denied- Denied by the opponent
Pending Cancellation- Opponent has cancelled, pending confirmation of cancellation.
Cancelled- Both parties have cancelled
Disrupted- Cancellation denied
Archived- Contest has passed and is now archived whether it was signed or not
Signature Needed- Requires a signature