Much has been written over the years about proving and pricing contractor claims on construction projects. But little has been published about subcontractor delay claims. Do subcontractors have the same rights and remedies as the prime contractor? Are they held to the same standards? What are their legal rights? Do owners owe time extensions for subcontractor delays? Are prime contractors at risk when they “pass through” a subcontractor’s delay claim to an owner? Are subcontractors at risk when a prime contractor opts not to sponsor their delay claim to the owner? This paper examines some issues concerning subcontractor delay claims.