Chapchai Nirat
BY YEAR
| 21st Singha Thailand Masters | ATGT | 38 | 2020 | T20 | - | 0.9565 | - | 993rd |
| Singha Pattaya Open | ATGT | 33 | 2020 | T51 | - | 0.9022 | - | 899th |
| Thongchai Jaidee Foundation | ATGT | 28 | 2020 | T11 | - | 0.8478 | - | 839th |
| Singha E-San Open | ATGT | 6 | 2020 | T33 | - | 0.7391 | - | 702nd |
| Boonchu Ruangkit Championship | ADT,ATGT | 4 | 2020 | MC | - | 0.7174 | - | 665th |
| Hong Kong Open | ASA | 2 | 2020 | T57 | - | 0.6957 | - | 649th |
| Thailand Masters | ASA | 51 | 2019 | T28 | - | 0.663 | - | 629th |
| BNI Indonesian Masters | ASA | 50 | 2019 | 56 | - | 0.6522 | - | 621st |
| Sabah Masters | ASA | 47 | 2019 | T28 | - | 0.6196 | - | 604th |
| Thailand Open | ASA | 45 | 2019 | MC | - | 0.5978 | - | 593rd |
| BG Bangkok Open | ATGT | 42 | 2019 | T22 | - | 0.5652 | - | 584th |
| Singha Pattaya Open | ATGT | 41 | 2019 | MC | - | 0.5543 | - | 577th |
| Mercuries Taiwan Masters | ASA | 40 | 2019 | MC | - | 0.5435 | - | 560th |
| Panasonic Open Golf Championship | ASA,JPN | 39 | 2019 | MC | - | 0.5326 | - | 544th |
| Yeangder TPC | ASA | 36 | 2019 | T17 | 1.20 | 0.5 | 0.6 | 541st |
| Bank BRI Indonesia Open | ASA | 35 | 2019 | MC | - | 0.4891 | - | 552nd |
| Singha Championship | ATGT | 34 | 2019 | T6 | - | 0.4783 | - | 545th |
| Sarawak Championship | ASA | 33 | 2019 | WD | - | 0.4674 | - | 538th |
| Singha all Thailand Memorial | ATGT | 27 | 2019 | T10 | - | 0.4022 | - | 489th |
| Kolon the 62nd Korea Open | ASA,KOR | 25 | 2019 | MC | - | 0.3804 | - | 463rd |
| Singha all Thailand Championship | ATGT | 24 | 2019 | T7 | - | 0.3696 | - | 453rd |
| Singha Classic | ATGT | 22 | 2019 | T8 | - | 0.3478 | - | 434th |
| Singha Laguna Phuket Open | ADT,ATGT | 20 | 2019 | T28 | - | 0.3261 | - | 419th |
| Asia-Pacific Open Golf Championship Diamond Cup Golf | ASA,JPN | 19 | 2019 | T43 | - | 0.3152 | - | 413rd |
| The 38th GS Caltex Maekyung Open Golf Championship | ASA,KOR | 18 | 2019 | MC | - | 0.3043 | - | 393rd |
| Singha Chiang Mai Open | ATGT | 17 | 2019 | T11 | - | 0.2935 | - | 376th |
| Hero Indian Open | ASA,EUR | 13 | 2019 | MC | - | 0.25 | - | 379th |
| Maybank Championship | ASA,EUR | 12 | 2019 | MC | - | 0.2391 | - | 368th |
| 20th Singha Thailand Masters | ATGT | 10 | 2019 | 5 | 1.68 | 0.2174 | 0.37 | 361st |
| Thongchai Jaidee Foundation | ADT,ATGT | 7 | 2019 | MC | - | 0.1848 | - | 376th |
| Singha E-San Open | ATGT | 6 | 2019 | T15 | - | 0.1739 | - | 364th |
| SMBC Singapore Open | ASA,JPN | 3 | 2019 | T18 | 1.63 | 0.1413 | 0.23 | 359th |
| Boonchu Ruangkit Championship | ADT,ATGT | 2 | 2019 | T9 | 1.40 | 0.1304 | 0.18 | 378th |
| BNI Indonesian Masters | ASA | 50 | 2018 | T12 | 2.47 | 0.087 | 0.21 | 409th |
| Queen's Cup hosted by Jaidee Foundation | ASA | 48 | 2018 | 5 | 3.36 | 0.0652 | 0.22 | 462nd |
| Honma Hong Kong Open presented by Amundi | ASA,EUR | 47 | 2018 | WD | - | 0.0543 | - | 530th |
| Panasonic Open India | ASA | 43 | 2018 | 65 | - | 0.0109 | - | 516th |