
Republic of Korea
20.02.76, 49 years
21857 $
20.02.76, 49 years
21857 $
Country
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money

Seong-Yoon Chung vs. Keita Koyama - head to head matches
26.06.06 | 1st round | Seong-Yoon Chung | Keita Koyama | 6-1, 7-5 | match details | ![]() | Hard |
Seong-Yoon Chung form & Keita Koyama form
Seong-Yoon Chung - last matches
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20.05.13 q 2 | vs. Sung Jun Park | 6-3, 6-1 | ![]() | match details |
20.05.13 qual. | vs. Hyeong Jin Cho | 6-0, 5-7, 6-1 | ![]() | match details |
20.05.13 1st round | vs. Young-Jun Kim | 1-4, - Seong-Yoon Chung - retired | ![]() | match details |
20.05.13 q 1 | vs. Gyu Sub Choi | 6-1, 6-0 | ![]() | match details |
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16.05.11 1st round | vs. Yong-Kyu Lim | 2-6, 2-6 | ![]() | match details |
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09.05.11 q 1 | vs. Zhe Li | 4-6, 1-6 | ![]() | match details |
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11.10.10 1st round | vs. Oleksiy Arovin | 6-0, 6-2 | ![]() | match details |
11.10.10 2nd round | vs. Jae-Won Choi | 1-6, 3-6 | ![]() | match details |
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04.10.10 1st round | vs. Dmitri Marfinsky | 7-64, 6-1 | ![]() | match details |
04.10.10 2nd round | vs. Antoine Tassart | 4-6, 2-6 | ![]() | match details |
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07.06.10 1st round | vs. Yasuo Miyazaki | 4-6, 3-6 | ![]() | match details |
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10.05.10 q 1 | vs. Jung-Woong Na | 1-6, 2-6 | ![]() | match details |
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02.11.09 q 1 | vs. Seung-Jae Lee | 6-4, 1-6, 1-6 | ![]() | match details |
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12.10.09 1st round | vs. Elbert Sie | 2-6, 4-6 | ![]() | match details |
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05.10.09 1st round | vs. Jose Statham | 2-6, 4-6 | ![]() | match details |
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31.08.09 2nd round | vs. Karunuday Singh | 4-6, 1-6 | ![]() | match details |
31.08.09 1st round | vs. Kyle Brassington | 3-6, 6-4, Kyle Brassington - retired | ![]() | match details |
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24.08.09 1st round | vs. Seung-Jae Lee | 2-6, 2-6 | ![]() | match details |
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17.08.09 1st round | vs. Krishananth Balakrishnan | 7-5, 3-6, 6-0 | ![]() | match details |
17.08.09 2nd round | vs. Chris Eaton | 2-6, 5-7 | ![]() | match details |
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20.07.09 1st round | vs. Sang-Woo Noh | 6-2, 6-0 | ![]() | match details |
20.07.09 2nd round | vs. Tatsuma Ito | 3-6, 3-6 | ![]() | match details |
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13.07.09 2nd round | vs. Ti Chen | 5-7, 6-4, 2-6 | ![]() | match details |
13.07.09 1st round | vs. Dong-Whee Choi | 6-3, 4-6, 7-63 | ![]() | match details |
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11.05.09 q 1 | vs. Yves Allegro | 4-6, 7-64, 4-6 | ![]() | match details |
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06.04.09 1st round | vs. Jae-Sung An | 5-7, 6-3, 4-6 | ![]() | match details |
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12.01.09 1st round | vs. Hsin-Han Lee | 4-6, 3-6 | ![]() | match details |
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15.09.08 1st round | vs. Pongsiri Niroj | 7-63, 6-2 | ![]() | match details |
15.09.08 2nd round | vs. Peter Gojowczyk | 1-6, 0-6 | ![]() | match details |
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08.09.08 1st round | vs. Peerakit Siributwong | 6-3, 7-5 | ![]() | match details |
Keita Koyama - last matches
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17.08.15 1st round | vs. Tsung-Hua Yang | 3-6, 3-6 | ![]() | match details |
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15.06.15 1st round | vs. Jumpei Yamasaki | 6-4, 4-6, 1-5, - Keita Koyama - retired | ![]() | match details |
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08.06.15 1st round | vs. Masayoshi Ono | 6-4, 2-6, 1-6 | ![]() | match details |
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01.06.15 1st round | vs. Keisuke Watanuki | 1-6, 1-6 | ![]() | match details |
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23.03.15 q 1 | vs. Masaki Harada | 6-2, 7-5 | ![]() | match details |
23.03.15 q 2 | vs. Ryota Hisamatsu | 6-3, 6-2 | ![]() | match details |
23.03.15 qual. | vs. Ryota Tanuma | 3-6, 2-6 | ![]() | match details |
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16.03.15 1st round | vs. Shintaro Imai | 0-6, 2-6 | ![]() | match details |
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09.03.15 2nd round | vs. Duckhee Lee | 0-6, 2-6 | ![]() | match details |
09.03.15 1st round | vs. Masato Shiga | 5-7, 7-5, 6-3 | ![]() | match details |
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21.02.15 q 1 | vs. Makoto Ochi | 4-6, 7-66, 5-7 | ![]() | match details |
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15.11.14 q 1 | vs. Kaichi Uchida | 6-3, 3-2, Kaichi Uchida - retired | ![]() | match details |
15.11.14 q 2 | vs. Issei Okamura | 3-6, 5-7 | ![]() | match details |
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07.11.14 q 1 | vs. Makoto Ochi | 6-75, 6-74 | ![]() | match details |
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28.10.14 qual. | vs. Chuhan Wang | 5-7, 7-64, 6-4 | ![]() | match details |
28.10.14 1st round | vs. Jake Eames | 2-6, 0-6 | ![]() | match details |
26.10.14 q 2 | vs. Adam Hubble | 3-6, 6-4, 7-5 | ![]() | match details |
25.10.14 q 1 | vs. Jeremy Beale | 6-2, 2-6, 7-62 | ![]() | match details |
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15.09.14 1st round | vs. Kittiphong Wachiramanowong | 6-1, 6-2 | ![]() | match details |
15.09.14 2nd round | vs. Hiroyasu Ehara | 0-6, 1-6 | ![]() | match details |
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08.09.14 1/4 | vs. Nikala Scholtz | 6-76, 3-6 | ![]() | match details |
08.09.14 1st round | vs. Michal Konecny | 7-68, 4-2, Michal Konecny - retired | ![]() | match details |
08.09.14 2nd round | vs. Shonigmatjon Shofayziyev | 6-2, 6-2 | ![]() | match details |
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23.06.14 2nd round | vs. Yasutaka Uchiyama | 6-4, 1-6, 2-6 | ![]() | match details |
23.06.14 1st round | vs. Koichi Sano | 6-3, 7-5 | ![]() | match details |
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16.06.14 1st round | vs. Renta Tokuda | 6-4, 4-6, 1-6 | ![]() | match details |
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09.06.14 2nd round | vs. Takashi Saito | 3-6, 1-6 | ![]() | match details |
09.06.14 1st round | vs. Masayoshi Ono | 7-5, 6-3 | ![]() | match details |
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02.06.14 1/2 | vs. Takuto Niki | 2-6, 1-6 | ![]() | match details |
02.06.14 2nd round | vs. Masato Shiga | 4-6, 6-4, 6-3 | ![]() | match details |