I don't know if I've ever really counted with FTs just practicing, I just shoot a hundred at once when the season comes each day, and count the total. In games though, I had a streak of I think 19 in a row (might have been 18) over 5 games, then I missed one and made the next 8. Kind of unrelated, but my friend last year (just shooting around, but still) made 14 straight 3 pointers, from different spots and all were kind of off balance. He was just jacking them up and they all fell haha, I've only ever made like 6 or 7 in a row.