Kosuke Hamamoto
BY YEAR
| Thongchai Jaidee Foundation | ATGT | 28 | 2020 | MC | - | 1 | - | 249th |
| Bandar Malaysia Open | ASA | 10 | 2020 | T4 | 3.45 | 1 | 3.45 | 238th |
| New Zealand Open presented by Sky Sport | ANZ,ASA | 9 | 2020 | MC | - | 1 | - | 267th |
| Singha E-San Open | ATGT | 6 | 2020 | 2 | 3.00 | 0.9783 | 2.93 | 260th |
| Boonchu Ruangkit Championship | ADT,ATGT | 4 | 2020 | T7 | 1.23 | 0.9565 | 1.18 | 297th |
| SMBC Singapore Open | ASA,JPN | 3 | 2020 | T14 | 2.54 | 0.9457 | 2.4 | 309th |
| Hong Kong Open | ASA | 2 | 2020 | 54 | - | 0.9348 | - | 340th |
| Thailand Masters | ASA | 51 | 2019 | T12 | 1.37 | 0.9022 | 1.24 | 342nd |
| BNI Indonesian Masters | ASA | 50 | 2019 | MC | - | 0.8913 | - | 364th |
| Sabah Masters | ASA | 47 | 2019 | T21 | - | 0.8587 | - | 357th |
| Panasonic Open India | ASA,PGTI | 46 | 2019 | T37 | - | 0.8478 | - | 359th |
| Thailand Open | ASA | 45 | 2019 | T35 | - | 0.837 | - | 356th |
| BG Bangkok Open | ATGT | 42 | 2019 | T5 | 1.20 | 0.8043 | 0.97 | 353rd |
| Singha Pattaya Open | ATGT | 41 | 2019 | T18 | - | 0.7935 | - | 367th |
| Mercuries Taiwan Masters | ASA | 40 | 2019 | T19 | - | 0.7826 | - | 362nd |
| Classic Golf and Country Club International Championship | ASA,PGTI | 37 | 2019 | 12 | 1.20 | 0.75 | 0.9 | 356th |
| Yeangder TPC | ASA | 36 | 2019 | 2 | 8.40 | 0.7391 | 6.21 | 385th |
| Bank BRI Indonesia Open | ASA | 35 | 2019 | T10 | 1.62 | 0.7283 | 1.18 | 604th |
| Ciputra Golfpreneur Tournament presented by Panasonic | ADT | 34 | 2019 | T16 | - | 0.7174 | - | 675th |
| Sarawak Championship | ASA | 33 | 2019 | T16 | 1.21 | 0.7065 | 0.85 | 670th |
| Gunung Geulis Golf Invitational supported by Nomura | ADT | 31 | 2019 | T13 | - | 0.6848 | - | 743rd |
| Singha all Thailand Memorial | ATGT | 27 | 2019 | T2 | 2.50 | 0.6413 | 1.6 | 724th |
| PGM ADT Championship @ Tiara Melaka | ADT | 26 | 2019 | 9 | - | 0.6304 | - | 882nd |
| Singha all Thailand Championship | ATGT | 24 | 2019 | T16 | - | 0.6087 | - | 844th |
| Singha Classic | ATGT | 22 | 2019 | T25 | - | 0.587 | - | 834th |
| Singha Laguna Phuket Open | ADT,ATGT | 20 | 2019 | T19 | - | 0.5652 | - | 819th |
| The 38th GS Caltex Maekyung Open Golf Championship | ASA,KOR | 18 | 2019 | T28 | - | 0.5435 | - | 800th |
| Butra Heidelberg Cement Brunei Championships | ADT | 17 | 2019 | T8 | 1.40 | 0.5326 | 0.75 | 791st |
| PGM ADT Penang Championship | ADT | 16 | 2019 | T7 | - | 0.5217 | - | 907th |
| Bangabandhu Cup Golf Open | ASA | 14 | 2019 | MC | - | 0.5 | - | 904th |
| 20th Singha Thailand Masters | ATGT | 10 | 2019 | T18 | - | 0.4565 | - | 908th |
| Thongchai Jaidee Foundation | ADT,ATGT | 7 | 2019 | 2 | 3.60 | 0.4239 | 1.53 | 917th |
| Singha E-San Open | ATGT | 6 | 2019 | T18 | - | 0.413 | - | 1441st |
| Boonchu Ruangkit Championship | ADT,ATGT | 2 | 2019 | T43 | - | 0.3696 | - | 1464th |
| Queen's Cup hosted by Jaidee Foundation | ASA | 48 | 2018 | T11 | 1.56 | 0.3043 | 0.47 | 1495th |
| Asia-Pacific Diamond Cup Golf | ASA,JPN | 38 | 2018 | T45 | - | 0.1957 | - | 2035th |
| Royal Cup | ASA | 30 | 2018 | MC | - | 0.1087 | - | 2042nd |
| Queen's Cup presented by Bangchak | ASA | 26 | 2018 | MC | - | 0.0652 | - | 2013rd |