If you're heads-up in no-limit against a reasonably solid player you may assume he has one of the following hands:
AA,KK,JJ,TT,AK,AQ,or maybe KQ
the relative frequencies of these given your cards and the board are:
1,6,6,6,8,2,4
so it's roughly 6 in 33 you're beat, 1 in 33 you're tied and 26 in 33 you're winning, assuming he would be equally likely to play the hand the same way with any of those cards -- an assumption which is probably not exacty correct but not too far-fetched either.