2021 Ubung Open – Singles

This was the second edition of the event. A total of 95 players competing.

Lonus Varalin is the defending champion. However, he was lost in the Third Round after being defeated by Adabian rising star, Foger Rederer in a tight 3-sets match. Rederer eventually win the title after defeating Electrumite player, Janet Riley in final with the score 6-3, 6-2.

Seeds
• # Lonus Varalin (CEN) (Third Round)

• # Ardil Navsal (CEN) (Second Round)

• # Fiorenzo Tartoni (SOR) (First Round)

• # Valentina Spetsova (TJU) (Third Round)

• # Ngurah Putra Muliawan (PCU) (Second Round)

• # Andrew Simmons (ETM) (Third Round)

• # Dewa Putu Adrian Putra (PCU) (Semifinal)

• # Mindy Waterford (KHD) (Quarterfinal)

• # Ricardo Toli (BRI) (Quarterfinal)

• # Jean van de Kloor (TJU) (Third Round)

• # Janet Riley (ETM) (Final)

• # Vladimir Mikhailov (WSN) (Third Round)

• # Jeff Rogers (GRU) (First Round)

• # Dioro Hansil (CEN) (Second Round)

• # Georg Heraklit (PUG) (Third Round)

• # Joe Katsi (TJU) (First Round)

Keys

 * Q = Qualifiers
 * WC = Wild card