"Bear I read somewhere  that in the Sustain and Assure trials there were zero 3 point Mace  events is this correct."

No that is not correct. It is 100% incorrect, as in zero truth.....complete falsehood. Wherever you read that is complete garbage.

"I Thought there had been a dozen or so in both arms combined."

See Table II of the 2016 Atherosclerosis manuscript. See the ASSURE Clinical Study Report (need to click link by Summary Report) that BKC alerted us to. See this post of mine from almost 2 years ago. 

"If the former how do you calculate probability for the 125 events."

This has been covered ad nauseum. See this post.