Wawrinka broke for 2-0 and held clinically through, taking the set 6-3 as Landaluce managed only two holds.
On serve to the tiebreak, Landaluce took it 7-2.
Wawrinka saved four break points in a 5 minute hold for 1-0, then Landaluce saved three in an 8 minute hold for 6-6 before Wawrinka won the tiebreak.