Lee beat Taipei's Yen-Hsun Lu 6-1, 6-4, while Querrey was defeated by Spaniard Ivan Navarro 7-5, 6-3.
The first round concluded Tuesday with 10 matchups, including victories for Americans Vincent Spadea, Robert Kendrick and Justin Gimelstob. Spadea beat countryman Amer Delic 6-3, 6-1; Kendrick beat Korean Hyun-Woo Nam 7-6 (7-5), 6-7 (7-9), 6-3; and Gimelstob beat Poland's Lukasz Kubot 6-4, 7-5.
Germany's Benjamin Becker, last week's Bangkok runner-up, posted a 7-5, 3-6, 6-4 victory over Takao Suzuk of Japani.
Also, German Rainer Schuettler, who won this tournament in 2003, defeated Go Soeda of Japan 6-3, 1-6, 6-2.
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