The 6th seed Amanda Anisimova has made the winning start in Bogota, defeating a former Wimbledon finalist Sabine Lisicki 4-6, 6-3, 6-2 in an hour and 32 minutes, overcoming a slower start to cross the finish line first and advance into the second round.
Barely ranked inside the top-300 after injuries, Lisicki is trying to make a comeback and she played well overall, firing ten aces and controlling the pace in the opener with some impressive numbers behind the initial shot.
That all went in the rest of the encounter although it should give her positive notes before the rest of the season. Serving at 71%, Amanda fended off seven out of ten break points and grabbed the second set with a single break in game eight that gave her the momentum before the decider.
There, they traded five breaks in the opening five games and it was the young American who had the upper hand, earning three of those and cementing the win with another good return game at 4-2 before a hold at 15 that pushed her through to the round two.
The 4th seed Anna Karolina Schmiedlova took down Ysaline Bonaventure 6-2, 6-4 in an hour and 33 minutes, saving eight out of 12 break points and scoring seven breaks from as many chances created, overcoming a 4-2 deficit in set number two to rattle off four games in a row and march into the last 16 without spending more time on the court.
A qualifier Jsaline Paolini defeated a lucky loser Francesca Di Lorenzo 6-2, 3-6, 6-4 in two hours and two minutes, winning the last three games of the match for an important win considering she is ranked outside the top-150.
Another qualifier Beatriz Haddad Maia toppled Laura Siegemund 6-2, 7-5 in an hour and 32 minutes, serving well and creating 15 chances on the return. Siegemund fought off 11 of those, opening a 5-2 lead in the second set before the Bazilian claimed the next five games to cross the finish line first.
Varvara Lepchenko was the most efficient player on the court on Monday, dismissing world no. 227 Elitsa Kostova 6-3, 6-1 in 68 minutes after five breaks of serve on her tally, losing serve once to control the scoreboard all the time and race into the next round.
The 17-year-old Maria Camila Osorio Serrano defeated Conny Perrin 6-4, 6-4 in an hour and 22 minutes, giving serve away four times and creating 14 opportunities on the return to have the upper hand all the time. She tamed Perrin's serve completely, earning six breaks when she needed them the most to shine in front of the home crowd.