Ippei Koike

Current standing

Week ending Aug 9, 2026

Career record

Career high

#305

Weeks ranked

964

Ranked since

2007

Ranking events

166

Wins

0

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

166 ranking events since 2007. MC is a missed cut and WD a withdrawal, shown where the scorecard evidences it; a dash means no finishing position was recorded.

1. 2024-10Japan Open Golf Championship—
2. 2023-09Fujisankei Classic—
3. 2022-09Fujisankei Classic—
4. 2022-06Daisendori Cup—
5. 2022-04i Golf Shaper Challenge in Chikushigaoka—
6. 2021-11Casio World Open—
7. 2021-11Dunlop Phoenix—
8. 2021-10Delight Works JGTO FINAL8
9. 2021-10Bridgestone Open36
10. 2021-10Vantelin Tokai Classic47
11. 2021-09Panasonic Open—
12. 2021-09ANA Open—
13. 2021-09Fujisankei Classic49
14. 2021-08Sansan KBC Augusta—
15. 2021-08Shigeo Nagashima Invitational Sega Sammy Cup52
16. 2021-08Minami Akita CC Michinoku Challenge—
17. 2021-07JAPAN PLAYERS CHAMPIONSHIP CHALLENGE29
18. 2021-06Dunlop SRIXON Fukushima Open57
19. 2021-06Japan Create Challenge in FukuokaRaizan37
20. 2021-06Landic Challenge 822
21. 2021-06JGTC Mori Building Cup Shishido Hills40
22. 2021-05Gate Way To The Open Mizuno Open—
23. 2021-05Golf Partner Pro-Am Tournament53
24. 2021-05JAPAN PLAYERS CHAMPIONSHIP by Sato Shokuhin—
25. 2021-04Kansai Open Golf Championship—
26. 2021-04Token Homemate Cup—
27. 2020-11Dunlop Phoenix64
28. 2020-11Mitsui Sumitomo VISA Taiheiyo Masters—
29. 2020-10Delight Works Challenge51
30. 2020-10Ryo Ishikawa everyone PROJECT66
31. 2020-10TI Challenge60
32. 2020-09PGM Challenge II18
33. 2020-09Fujisankei Classic14
34. 2019-10JGTO Novil Final29
35. 2019-10Ryo Ishikawa everyone PROJECT Challenge6
36. 2019-10TOSHIN CHALLENGE IN Meishin Yokaichi CC17
37. 2019-09Elite Grips Challenge19
38. 2019-09HEIWA PGM Challenge II Road to CHAMPIONSHIP5
39. 2019-09Delight Works ASP Challenge44
40. 2019-09Fujisankei Classic58
41. 2019-08TI Challenge in Tojonomori60
42. 2019-07Japan PGA Championship43
43. 2019-06Dunlop SRIXON Fukushima Open—
44. 2019-06Minamiakita CC Michinoku Challenge19
45. 2019-06LANDIC CHALLENGE 7—
46. 2019-06Taiheiyo Club Challenge Tournament14
47. 2019-05HEIWA PGM Challenge I Road to CHAMPIONSHIP—
48. 2019-04Japan Create Challenge in Fukuokaraizan7
49. 2019-04i Golf Shaper Challenge in Tsukushigaoka42
50. 2019-04Novil Cup—
51. 2018-10Japan Open Golf Championship27
52. 2018-09ISPS Handa Match Play—
53. 2018-09Fujisankei Classic48
54. 2018-06Dunlop SRIXON Fukushima Open—
55. 2018-05Gate Way To The Open Mizuno Open at The Royal GC—
56. 2018-05Japan PGA Championship52
57. 2017-11Casio World Open45
58. 2017-11Dunlop Phoenix Tournament64
59. 2017-11Mitsui Sumitomo VISA Taiheiyo Masters44
60. 2017-11HEIWA PGM CHAMPIONSHIP—
61. 2017-10Mynavi ABC Championship60
62. 2017-10Bridgestone Open73
63. 2017-10Japan Open Golf Championship36
64. 2017-10Honma TourWorld Cup51
65. 2017-10TOP Cup Tokai Classic—
66. 2017-09Asia-Pacific Diamond Cup Golf—
67. 2017-09ANA Open—
68. 2017-09ISPS Handa Match Play—
69. 2017-09Fujisankei Classic—
70. 2017-08RIZAP KBC Augusta—
71. 2017-07Dunlop SRIXON Fukushima Open—
72. 2017-07Shigeo Nagashima Invitational SEGA SAMMY Cup—
73. 2017-06JGT Championship Mori Building Cup Shishido Hills46
74. 2017-05Gate Way To The Open - Mizuno Open—
75. 2017-05Kansai Open Golf Championship28
76. 2017-05Japan PGA Championship Nissin Cup Noodle Cup 2017—
77. 2017-04The Crowns52
78. 2017-04Panasonic OPEN—
79. 2017-04Token Homemate Cup—
80. 2017-01Leopalace21 Myanmar Open68
81. 2017-01SMBC Singapore Open—
82. 2016-12Golf Nippon Series JT Cup19
83. 2016-11Casio World Open28
84. 2016-11Dunlop Phoenix Tournament—
85. 2016-11Mitsui Sumitomo VISA Taiheiyo Masters61
86. 2016-11Heiwa PGM Championship15
87. 2016-10Mynavi ABC Championship29
88. 2016-10Bridgestone Open—
89. 2016-10Japan Open Golf Championship22
90. 2016-10Honma TourWorld Cup at Trophia Golf—
91. 2016-10Top Cup Tokai Classic9
92. 2016-09Asia-Pasific Golf Championship Diamond Cup Golf2
93. 2016-09ANA Open Golf Tournament36
94. 2016-09Fujisankei Classic—
95. 2016-08RIZAP KBC Augusta8
96. 2016-07Dunlop SRIXON Fukushima Open Golf Tournament—
97. 2016-07Japan PGA Championship Nissin Cupnoodle Cup20
98. 2016-07Shigeo Nagashima Invitational SEGA SAMMY CUP9
99. 2016-06ISPS HANDA Global Cup—
100. 2016-06JGT Championship Mori Building Cup Shishido Hills—
101. 2016-05Gate Way To The Open Mizuno Open 201665
102. 2016-05Kansai Open Golf Championship32
103. 2016-05The Crowns43
104. 2016-04Panasonic Open Golf Championship70
105. 2016-04Token Homemate Cup—
106. 2016-02Leopalace21 Myanmar Open—
107. 2016-01SMBC Singapore Open21
108. 2015-11Casio World Open27
109. 2015-11Dunlop Phoenix39
110. 2015-11Mitsui Sumitomo VISA Taiheiyo Masters33
111. 2015-11Heiwa PGM Championship58
112. 2015-11Mynavi ABC Championship—
113. 2015-10Bridgestone Open61
114. 2015-10HONMA TOURWORLD CUP AT TROPHIA GOLF　201518
115. 2015-10Top Cup Tokai Classic 201536
116. 2015-09Asia Pacific Open Mitsubishi Diamond Cup—
117. 2015-09ANA Open—
118. 2015-09Fujisankei Classic9
119. 2015-08RIZAP KBC Augusta13
120. 2015-07Dunlop SRIXON Fukushima Open11
121. 2015-07MUSEE PLATINUM Open12
122. 2015-07Shigeo Nagashima Invitational SEGA SAMMY CUP29
123. 2015-06ISPS HANDA Global Cup4
124. 2015-06JGT Championship Mori Building Cup Shishido Hills—
125. 2015-05Gate Way To The Open Mizuno Open—
126. 2015-05Kansai Open Golf Championship—
127. 2015-04Token Homemate Cup67
128. 2014-11Casio World Open—
129. 2014-10Bridgestone Open49
130. 2014-10Japan Open—
131. 2014-10TOSHIN GOLF TOURNAMENT IN Central—
132. 2014-10Top Cup Tokai Classic71
133. 2014-09ANA Open15
134. 2014-09Fujisankei Classic17
135. 2014-08RZ EVERLASTING KBC Augusta—
136. 2014-08Dunlop SRIXON Fukushima Open Golf Tournament34
137. 2014-07Nagashima Shigeo INVITATIONAL SEGA SAMMY Cup56
138. 2014-06Japan Golf Tour Championship MORI Building Cup Shishido Hills41
139. 2014-06PGA Championship Nissin Cupnoodles Cup—
140. 2014-06Gate Way To The Open Mizuno Open—
141. 2014-05Kansai Open Golf Championship26
142. 2014-04Tsuruya Open49
143. 2014-04TOKEN HOMEMATE CUP—
144. 2013-10TOSHIN GOLF TOURNAMENT53
145. 2013-09ANA Open—
146. 2013-09Fujisankei Classic—
147. 2013-09Vana H Cup KBC Augusta34
148. 2013-07Nagashima Shigeo INVITATIONAL SEGA SAMMY Cup62
149. 2013-06Gate Way To The Open Mizuno Open—
150. 2013-06Japan Golf Tour Championship Shishido Hills—
151. 2013-06Diamond Cup Golf—
152. 2013-04Tsuruya Open41
153. 2013-04TOKEN HOMEMATE CUP—
154. 2012-09Fujisankei Classic—
155. 2012-07Sun Chlorella Classic—
156. 2012-07SEGA Sammy Cup—
157. 2012-06Gate Way To The Open Mizuno Open—
158. 2012-06Japan Golf Tour Championship Citibank Cup Shishido Hills—
159. 2012-05Diamond Cup Golf42
160. 2012-05Totoumi Hamamatsu Open—
161. 2012-04Tsuruya Open—
162. 2012-04Token Homemate Cup—
163. 2011-09Fujisankei Classic—
164. 2010-09Fujisankei Classic—
165. 2009-09Fujisankei Classic53
166. 2007-11Casio World Open—

Season by season

1. 2026#5023#490832
2. 2025#4915#453952
3. 2024#4566#412152
4. 2023#4121#306452
5. 2022#3064#153352
6. 2021#1540#127952
7. 2020#1287#123940
8. 2019#1494#119952
9. 2018#1361#72452
10. 2017#724#33453
11. 2016#336#30552
12. 2015#485#45552
13. 2014#1045#102952
14. 2013#1508#149152
15. 2012#1492#140153
16. 2011#1401#132252
17. 2010#1322#132052
18. 2009#1368#136552
19. 2008#1381#136752
20. 2007#1375#13706