That's the answer to your description's question: before or on the 51st ball drawn. But since your heading asks a slightly different question, I'll also answer your heading's question, which is just before 51 balls.
Looking for the definition of AFIS? Find out what is the full meaning of AFIS on Abbreviations.com! 'Automated Fingerprint Identification System' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and abbreviations resource.
AFib is an irregular heartbeat that can lead to stroke and other heart-related complications. Sometimes people with AFib have no symptoms; others may experience one or more of the following symptoms. Usually, the most serious risk from AFib is that it can lead to other medical problems.