Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Sébastien Grosjean was the defending champion but lost in the quarterfinals to Àlex Corretja. Gustavo Kuerten won in the final 6 4, 6 3 against Sargis Sargsian. The 2003 St. Petersburg Open was a tennis tournament played on indoor hard courts at the Petersburg Sports and Concert Complex in Saint Petersburg in Russia and was part of the International Series of the 2003 ATP Tour. The tournament ran from October 20 through October 26, 2003.