Kosuke Hamamoto

Current standing

Week ending Aug 30, 2026

Career record

Career high

#238

Weeks ranked

548

Ranked since

2015

Ranking events

168

Wins

1

Career high, weeks at number one and weeks ranked are counted from the weekly ranking itself. Ranking events and wins are as published by OWGR, and cover events that predate our tournament records.

Tournament results

168 ranking events since 2015. MC is a missed cut and WD a withdrawal, shown where the scorecard evidences it; a dash means no finishing position was recorded.

1. 2026-07HCT ADT Open—
2. 2026-07Ambassador ADT Open41
3. 2026-07Ever Glory ADT Open47
4. 2026-05am green IGPL Morocco Rising Stars52
5. 2026-05Singha Laguna Phuket Open—
6. 2026-05ADT Players Championship presented by The R&A36
7. 2026-05Singha Championship23
8. 2026-04Singapore Open presented by The Business Times—
9. 2026-04International Series Japan—
10. 2026-03Nam A Bank Vietnam Masters21
11. 2026-02PKNS Selangor Masters20
12. 2026-02Philippine Golf Championship presented by Philippine Sports Commission—
13. 2025-12Saudi Open presented by PIF59
14. 2025-1253rd Thailand Open4
15. 2025-11Bharath Classic Gujarat28
16. 2025-1126th Singha Thailand Masters10
17. 2025-11Taiwan Glass Taifong Open27
18. 2025-11Moutai Singapore Open—
19. 2025-10International Series Philippines60
20. 2025-10SJM Macao Open—
21. 2025-09Singha Bangkok Open27
22. 2025-08Mandiri Indonesia Open—
23. 2025-08Ciputra Golfpreneur Tournament5
24. 2025-08Singha Pattaya Open25
25. 2025-08Singha Championship14
26. 2025-07Singha E-San Open3
27. 2025-07International Series Morocco—
28. 2025-05Singha Laguna Phuket Open—
29. 2025-05Trang An Open2
30. 2025-05International Series Japan presented by Moutai—
31. 2025-05Singha Chiang Mai Open6
32. 2025-04Singha all Thailand Memorial24
33. 2025-03International Series Macau presented by Wynn—
34. 2025-0225th Singha Thailand Masters51
35. 2025-02International Series India presented by DLF57
36. 2025-01Smart Infinity Philippine Open24
37. 2024-12Aramco Invitational Tournament25
38. 2024-11Toyota Tour Championship17
39. 2024-11Taiwan Glass Taifong Open12
40. 2024-11Ambassador ADT Open2
41. 2024-11BNI Indonesian Masters44
42. 2024-10International Series Thailand—
43. 2024-10Black Mountain Championship—
44. 2024-10SJM Macao Open34
45. 2024-09ADT Players Championship presented by The R&A6
46. 2024-09The Indonesia Pro-Am presented by Combiphar & Nomura49
47. 2024-09Singha Bangkok Open5
48. 2024-09BRG Open Golf Championship23
49. 2024-08BNI Ciputra Golfpreneur Tournament28
50. 2024-08Singha Pattaya Open2
51. 2024-08International Series England65
52. 2024-07Singha Chiang Mai Open—
53. 2024-07International Series Morocco37
54. 2024-06PKNS Selangor Masters7
55. 2024-06Nam A Bank Vietnam Masters19
56. 2024-05Singha Laguna Phuket Open—
57. 2024-05ADT - All Thailand Partnership Trophy5
58. 2024-04Saudi Open presented by PIF—
59. 2024-04Singha Championship15
60. 2024-03Lexus Challenge11
61. 2024-02IRS Prima Malaysian Open—
62. 2024-0110th Boonchu Ruangkit Championship17
63. 2023-12Saudi Open presented by Public Investment Fund32
64. 2023-1251st Thailand Open3
65. 2023-12Taiwan Glass Taifong Open21
66. 2023-11BNI Indonesian Masters presented by Tunas Niaga Energi56
67. 2023-11Hong Kong Open53
68. 2023-11Volvo China Open—
69. 2023-10SJM Macao Open59
70. 2023-10International Series Singapore59
71. 2023-10Mercuries Taiwan Masters—
72. 2023-09Yeangder TPC9
73. 2023-09Shinhan Donghae Open40
74. 2023-08St Andrews Bay Championship21
75. 2023-08International Series England62
76. 2023-08Mandiri Indonesia Open58
77. 2023-07Singha Pattaya Open19
78. 2023-07ADT - All Thailand Partnership Trophy1
79. 2023-06Kolon The 65th Korea Open Golf Championship—
80. 2023-06Singha Chiang Mai Open17
81. 2023-05Singha Laguna Phuket Open11
82. 2023-05The 42nd GS Caltex Maekyung Open Golf Championship—
83. 2023-04Singha Classic10
84. 2023-04International Series Vietnam53
85. 2023-03World City Championship presented by Hong Kong Golf Club—
86. 2023-03The DGC Open37
87. 2023-03International Series Thailand41
88. 2023-02International Series Qatar—
89. 2023-02International Series Oman—
90. 2023-02PIF Saudi International powered by Softbank Investment Advisers56
91. 2022-12BNI Indonesian Masters presented by Tunas Niaga Energi6
92. 2022-11Bangabandhu Cup Golf Bangladesh Open2
93. 2022-1123rd Singha Thailand Masters4
94. 2022-11International Series Egypt21
95. 2022-11International Series Morocco12
96. 2022-10Singha Bangkok Open7
97. 2022-10Mercuries Taiwan Masters53
98. 2022-09Yeangder TPC—
99. 2022-09The 38th Shinhan Donghae Open58
100. 2022-0950th Thailand Open21
101. 2022-08International Series Singapore—
102. 2022-08Mandiri Indonesia Open 2022—
103. 2022-07Singha Championship 2022—
104. 2022-07Singha Pattaya Open 2022—
105. 2022-06Kolon The 64th Korea Open—
106. 2022-06International Series England9
107. 2022-05Asia Pacific Open Golf Championship Diamond Cup Golf37
108. 2022-05Singha Classic 2022—
109. 2022-04Trust Golf Asian Mixed Stableford Challenge—
110. 2022-04Trust Golf Asian Mixed Cup20
111. 2022-03International Series Thailand—
112. 2022-02Royal's Cup 202212
113. 2022-02PIF Saudi International powered by SoftBank Investment Advisers—
114. 2022-01SMBC Singapore Open9
115. 2022-01The Singapore International5
116. 2021-1222nd Singha Thailand Masters15
117. 2021-12Laguna Phuket Championship 202118
118. 2021-11Blue Canyon Phuket Championship 202115
119. 2021-11Singha Chiang Mai Open 20215
120. 2021-11Singha E-San Open 20219
121. 2021-10Thailand Open 20217
122. 2021-10Singha Pattaya Open 20219
123. 2021-10Singha Laguna Phuket Open16
124. 2021-09Singha all Thailand Championship 20218
125. 2021-03Boonchu Ruangkit Championship12
126. 2020-10Singha Laguna Phuket Open5
127. 2020-0921st Singha Thailand Masters—
128. 2020-08Singha Pattaya Open51
129. 2020-07Thongchai Jaidee Foundation—
130. 2020-03Bandar Malaysia Open4
131. 2020-03New Zealand Open presented by Sky Sport—
132. 2020-02Singha E-San Open2
133. 2020-01Boonchu Ruangkit Championship7
134. 2020-01SMBC Singapore Open14
135. 2020-01Hong Kong Open54
136. 2019-12Thailand Masters12
137. 2019-12BNI Indonesian Masters—
138. 2019-11Sabah Masters21
139. 2019-11Panasonic Open India37
140. 2019-11Thailand Open35
141. 2019-10BG Bangkok Open5
142. 2019-10Singha Pattaya Open18
143. 2019-10Mercuries Taiwan Masters19
144. 2019-09Classic Golf and Country Club International Championship12
145. 2019-09Yeangder TPC2
146. 2019-09Bank BRI Indonesia Open10
147. 2019-08Ciputra Golfpreneur Tournament presented by Panasonic16
148. 2019-08Sarawak Championship16
149. 2019-08Gunung Geulis Golf Invitational supported by Nomura13
150. 2019-07Singha all Thailand Memorial2
151. 2019-06PGM ADT Championship @ Tiara Melaka9
152. 2019-06Singha all Thailand Championship16
153. 2019-06Singha Classic25
154. 2019-05Singha Laguna Phuket Open19
155. 2019-05The 38th GS Caltex Maekyung Open Golf Championship28
156. 2019-04Butra Heidelberg Cement Brunei Championships8
157. 2019-04PGM ADT Penang Championship7
158. 2019-04Bangabandhu Cup Golf Open—
159. 2019-0320th Singha Thailand Masters18
160. 2019-02Thongchai Jaidee Foundation2
161. 2019-02Singha E-San Open18
162. 2019-01Boonchu Ruangkit Championship43
163. 2018-12Queen's Cup hosted by Jaidee Foundation11
164. 2018-09Asia-Pacific Diamond Cup Golf45
165. 2018-07Royal Cup—
166. 2018-07Queen's Cup presented by Bangchak—
167. 2015-06Queen’s Cup—
168. 2015-06THE SINGHA CORPORATION THAILAND OPEN—

Tournament wins

1 win in ranking events since 1986. Recovered from the weekly world ranking, so wins before it began are not counted.

1. ADT - All Thailand Partnership TrophyJul 9, 2023

Season by season

1. 2026#1262#90635
2. 2025#910#69552
3. 2024#716#63252
4. 2023#633#52152
5. 2022#535#53552
6. 2021#779#32752
7. 2020#327#23840
8. 2019#339#33952
9. 2018#1480#148027
10. 2017#1925#186653
11. 2016#1866#171152
12. 2015#1711#159929