Smith//IRV

The method
1. Eliminate all candidates not in the Smith set.

2. Perform an IRV tally among remaining candidates.

Example:

B pairwise beats A (51 to 49) and C (52 to 48), so B is the only candidate in the Smith set i.e. is the Condorcet winner. Therefore, A and C are eliminated, and B, being the only remaining candidate, wins.