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