Complex sentence: She then played in a Tier IV event in Pattaya City, Thailand, where she reached the round of 16, where she lost to fourth-seeded Chinese player Peng Shuai in three sets.
Split into simpler sentences: She then played in a Tier IV event in Pattaya City, Thailand, where she reached the round of 16. She lost to fourth-seeded Chinese player Peng Shuai in three sets.