Meanwhile, in the Girls' Singles event, the surprises were few and far between with Germany's Anna Krieghoff, China's Gu Yuting and Romania's Bernadette Szocs being the players to upset the pecking order.
Anna Krieghoff beat Romania's Cristina Hirici, the no.16 seed; Gu Yuting overcame Hong Kong's Lee Ho Ching, the no.18 seed and Bernadette Szocs proved too fast for Japan's Megumi Okazaki, the no.22 seed.
In similar fashion to the giant killers in the Boys' Singles event, the three young ladies all finished their group matches in top spot.
Anna Krieghoff defeated the host nation's Lucia Martinez, Gu Yuting ended the hopes of Australia's Ashleigh Stevenson; whilst Bernadette Szocs poured more pain on Colombia.
She beat Diana Zabala.
Troubles for three lower seeded players but there were no troubles for the top four seeds; China's Wu Yang and Cao Lisi, the respective no.1 and no.3 seeds were in dominant mood as was Chinese Taipei's Cheng I-Ching, the no.2 seed and Korea's Yang Ha Eun, the no.4 seed.
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