Timea Babos made her first WTA semifinal the week before, but few saw what was coming in Monterrey.
Mandy Minella pulled off one of the first upsets of the week, bouncing No.7 seed Mathilde Johansson.
Top seed Roberta Vinci won her first match but faced some serious resistance in her second round.
Recent Top 100 debutante Nina Bratchikova shocked top seed Roberta Vinci in the second round, 75 75.
No.2 seed Sara Errani showed no cracks in the armor though, cruising through her first three rounds.
Gisela Dulko and Serena Williams at the Santa Lucia Riverwalk was one of many off-court attractions.
Timea Babos, just 18, continued her impressive run of form in her second round against Sorana Cirstea.
Timea Babos rallied from a set down for a 46 64 62 victory against the No.3-seeded Sorana Cirstea.
Sorana Cirstea, who recently broke back into the Top 50, met the press before departing Monterrey.
No.6 seed Greta Arn was also building some momentum, beating Nina Bratchikova to reach the semifinals.
No.2 seed Sara Errani was also continuing her form, crushing Mandy Minella, 61 62, to make the semis.
Timea Babos shone again in the semifinals, grinding out a 64 67(3) 64 win over No.2 seed Sara Errani.
There was another breakthrough run going on on the top half of the draw, courtesy of Alexandra Cadantu.
Alexandra Cadantu rallied from 5-3 down in the third to beat No.6 seed Greta Arn in the semis, 62 46 75.
In the end, Timea Babos was too tough - she never faced a break point to beat Alexandra Cadantu, 64 64.
Timea Babos won her first WTA title and broke the Top 100 - she is the youngest player in the Top 100.
No.2 seeds Kimiko Date-Krumm and Zhang Shuai squared off with No.1 seeds Sara Errani and Roberta Vinci.
Sara Errani and Roberta Vinci were able to close out the doubles final in a close finish, 62 76(6).
Kimiko Date-Krumm of Japan and Zhang Shuai of China hoisted their doubles runners-up trophies Sunday.
Talented Italians Sara Errani and Roberta Vinci have now captured six WTA doubles titles together.