The eighth-seeded Verdasco didn't allow a single break opportunity to Wawrinka, cruising to the victory at The Fairmont Acapulco Princess.
In the women's tournament, No. 3 seed Sara Errani eliminated top-seeded Roberta Vinci 6-4, 6-1 in an all-Italian semifinal. Errani broke twice in each set against her good friend and doubles partner in the tournament.
The 36th-ranked Errani will be playing for her third WTA title when she meets fellow Italian Flavia Pennetta, who got past No. 4 seed Irina-Camelia Begu of Romania 6-2, 6-2.
The second-seeded Pennetta, seeking her 10th WTA title, broke Begu three times in each set.