Korea F4 qualifying
May 19-25, 2003

Singles
Seeds: (cut: Seung-Hoon Oh - NR)
1. Sonchat Ratiwatana
2. Suwandi Suwandi
3. Sanchai Ratiwatana
4. Brad Weston
5. Yew-Ming Si
6. Michael Kosta
7. Seong-Yoon Chung
8. Jun-Il You
9. Robert Haybittel
10. Atsuo Ogawa
11. Hyun-Joon Suk
12. Sang-Hoon Lee
13. Woong-Sun Jun
14. Seung-Bok Baek
15. Chul-Hee Lee
16. Aaron Talarico

First Round
(1)Sonchat Ratiwatana (THA) bye
Dong-Whee Choi (KOR) d. Jun-Young Kim (KOR) 7-5 6-4
(WC)Sun-Yong Kim (1987) (KOR) d. (WC)Hong-Tae Kim (KOR) 6-4 6-3
(10)Atsuo Ogawa (JPN) bye
(2)Suwandi Suwandi (INA) bye
(WC)Jeong-Woon Kwon (KOR) d. Adrian Venturi (AUS) 6-3 6-3
Won-Jun Jang (KOR) d. Anuwat Dalodom (THA) 6-3 6-1
(15)Chul-Hee Lee (KOR) bye
(3)Sanchai Ratiwatana (THA) bye
Eui-Hyun Chung (KOR) d. Dannio Yahya (MAS) 6-4 6-2
Chang-Hoon Lee (1981) (KOR) d. Tae-Hoon An (KOR) 6-2 6-4
(12)Sang-Hoon Lee (KOR) bye
(4)Brad Weston (AUS) bye
Hyun-Woo Nam (KOR) d. Duck-Hwan An (KOR) 7-5 7-6(6)
Chris Kwon (USA) d. Yeon-Wook Lee (KOR) 4-6 6-1 6-4
(14)Seung-Bok Baek (KOR) bye
(5)Yew-Ming Si (MAS) bye
Seung-Hoon Oh (KOR) d. Doo-Jin Hong (KOR) 1-6 6-4 6-2
Robert Yim (USA) d. (WC)Woo-Ram Kim (KOR) 2-6 6-3 6-3
(13)Woong-Sun Jun (KOR) bye
(6)Michael Kosta (USA) bye
(WC)Kyung-Sik Lim (KOR) d. (WC)Chang-Ho Choi (KOR) 4-6 6-2 6-3
Sung-Hyuk Yu (KOR) d. Seung-Yong Shin (KOR) 6-1 3-6 7-6(3)
(11)Hyun-Joon Suk (KOR) bye
(7)Seong-Yoon Chung (KOR) bye
Vladimir Portnov (RUS) d. Yong-Sik Kwon (KOR) 7-5 6-3
Hyoung-Jin Kim (KOR) d. (WC)Jae-Sung An (KOR) 3-6 6-4 6-3
(16)Aaron Talarico (USA) bye
(8)Jun-Il You (KOR) bye
Hwa-Soo You (KOR) d. Seung-Joo Lee (KOR) 6-2 5-7 6-3
Dae-Sung Jang (KOR) d. Chang-Hoon Lee (1979) (KOR) 7-6(5) 5-7 6-4
(9)Robert Haybittel (AUS) bye

Second Round
(1)Sonchat Ratiwatana (THA) d. Dong-Whee Choi (KOR) 6-7(5) 7-6(7) 6-4
(10)Atsuo Ogawa (JPN) d. (WC)Sun-Yong Kim (1987) (KOR) 6-2 4-6 6-4
(2)Suwandi Suwandi (INA) d. (WC)Jeong-Woon Kwon (KOR) 6-0 6-2
(15)Chul-Hee Lee (KOR) d. Won-Jun Jang (KOR) 6-0 6-1
(3)Sanchai Ratiwatana (THA) d. Eui-Hyun Chung (KOR) 6-0 6-2
(12)Sang-Hoon Lee (KOR) d. Chang-Hoon Lee (1981) (KOR) 6-4 3-6 6-0
(4)Brad Weston (AUS) d. Hyun-Woo Nam (KOR) 3-6 6-4 7-5
Chris Kwon (USA) d. (14)Seung-Bok Baek (KOR) 6-1 6-1
(5)Yew-Ming Si (MAS) d. Seung-Hoon Oh (KOR) 6-4 6-7(6) 6-3
Robert Yim (USA) d. (13)Woong-Sun Jun (KOR) 6-1 3-6 6-3
(WC)Kyung-Sik Lim (KOR) d. (6)Michael Kosta (USA) 6-4 7-6(3)
(11)Hyun-Joon Suk (KOR) d. Sung-Hyuk Yu (KOR) 6-4 6-0
(7)Seong-Yoon Chung (KOR) d. Vladimir Portnov (RUS) 6-1 6-4
Hyoung-Jin Kim (KOR) d. (16)Aaron Talarico (USA) 6-2 6-3
(8)Jun-Il You (KOR) d. Hwa-Soo You (KOR) 6-2 6-2
(9)Robert Haybittel (AUS) d. Dae-Sung Jang (KOR) 6-2 6-2

Qualifying Round
(1)Sonchat Ratiwatana (THA) d. (10)Atsuo Ogawa (JPN) 6-4 6-3
(15)Chul-Hee Lee (KOR) d. (2)Suwandi Suwandi (INA) 6-1 6-2
(3)Sanchai Ratiwatana (THA) d. (12)Sang-Hoon Lee (KOR) 7-5 6-1
Chris Kwon (USA) d. (4)Brad Weston (AUS) 6-7(4) 7-5 6-2
Robert Yim (USA) d. (5)Yew-Ming Si (MAS) 7-6(1) 6-3
(11)Hyun-Joon Suk (KOR) d. (WC)Kyung-Sik Lim (KOR) 6-2 6-1
(7)Seong-Yoon Chung (KOR) d. Hyoung-Jin Kim (KOR) 6-1 6-0
(9)Robert Haybittel (AUS) d. (8)Jun-Il You (KOR) 6-3 6-4