suwanee4712
Professional
81 US Open final, 82 US Open quarterfinal, 85 US Open final are three off the top of my head where Martina had it and plain blew it, and it was because she got tight. You could also make an argument that MN blew the FO final in 85, since Martina had three break points at five all in the third. (you could make the same argument about Evert; the match should have been over in two sets).
1981 US Open final? Probably. 1982 US Open QF? There are extinuating circumstances to that one. But how did Martina have the 1985 US Open final? She never had the lead. The closest she came was when she tied it up at a set all. She never held a service game lead nor a service break in the final set, nor in the tiebreak. She did however make a series of marvelous comebacks in that match.
Martina could be mentally fragile at times. But compared to whom? Chris Evert? Everyone is mentally fragile compared to her. BJK could make Martina shake a bit. And later Steffi did the same when she spooked Martina in 1987. Other than that, once Martina became the player she knew she could be, this wasn't a huge problem for her.
So she lost a few close matches? Who hasn't? She won a heckuva lot more close matches and came from behind to win more matches than she lost.