Chapchai Nirat
BY YEAR
| Thailand Open | ASA | 45 | 2019 | MC | - | 1 | - | 593rd |
| BG Bangkok Open | ATGT | 42 | 2019 | T22 | - | 1 | - | 584th |
| Singha Pattaya Open | ATGT | 41 | 2019 | MC | - | 1 | - | 577th |
| Mercuries Taiwan Masters | ASA | 40 | 2019 | MC | - | 1 | - | 560th |
| Panasonic Open Golf Championship | ASA,JPN | 39 | 2019 | MC | - | 1 | - | 544th |
| Yeangder TPC | ASA | 36 | 2019 | T17 | 1.20 | 1 | 1.2 | 541st |
| Bank BRI Indonesia Open | ASA | 35 | 2019 | MC | - | 1 | - | 552nd |
| Singha Championship | ATGT | 34 | 2019 | T6 | - | 1 | - | 545th |
| Sarawak Championship | ASA | 33 | 2019 | WD | - | 1 | - | 538th |
| Singha all Thailand Memorial | ATGT | 27 | 2019 | T10 | - | 0.9348 | - | 489th |
| Kolon the 62nd Korea Open | ASA,KOR | 25 | 2019 | MC | - | 0.913 | - | 463rd |
| Singha all Thailand Championship | ATGT | 24 | 2019 | T7 | - | 0.9022 | - | 453rd |
| Singha Classic | ATGT | 22 | 2019 | T8 | - | 0.8804 | - | 434th |
| Singha Laguna Phuket Open | ADT,ATGT | 20 | 2019 | T28 | - | 0.8587 | - | 419th |
| Asia-Pacific Open Golf Championship Diamond Cup Golf | ASA,JPN | 19 | 2019 | T43 | - | 0.8478 | - | 413rd |
| The 38th GS Caltex Maekyung Open Golf Championship | ASA,KOR | 18 | 2019 | MC | - | 0.837 | - | 393rd |
| Singha Chiang Mai Open | ATGT | 17 | 2019 | T11 | - | 0.8261 | - | 376th |
| Hero Indian Open | ASA,EUR | 13 | 2019 | MC | - | 0.7826 | - | 379th |
| Maybank Championship | ASA,EUR | 12 | 2019 | MC | - | 0.7717 | - | 368th |
| 20th Singha Thailand Masters | ATGT | 10 | 2019 | 5 | 1.68 | 0.75 | 1.26 | 361st |
| Thongchai Jaidee Foundation | ADT,ATGT | 7 | 2019 | MC | - | 0.7174 | - | 376th |
| Singha E-San Open | ATGT | 6 | 2019 | T15 | - | 0.7065 | - | 364th |
| SMBC Singapore Open | ASA,JPN | 3 | 2019 | T18 | 1.63 | 0.6739 | 1.1 | 359th |
| Boonchu Ruangkit Championship | ADT,ATGT | 2 | 2019 | T9 | 1.40 | 0.663 | 0.93 | 378th |
| BNI Indonesian Masters | ASA | 50 | 2018 | T12 | 2.47 | 0.6196 | 1.53 | 409th |
| Queen's Cup hosted by Jaidee Foundation | ASA | 48 | 2018 | 5 | 3.36 | 0.5978 | 2.01 | 462nd |
| Honma Hong Kong Open presented by Amundi | ASA,EUR | 47 | 2018 | WD | - | 0.587 | - | 530th |
| Panasonic Open India | ASA | 43 | 2018 | 65 | - | 0.5435 | - | 516th |
| Yeangder TPC | ASA | 40 | 2018 | T21 | - | 0.5109 | - | 494th |
| Mercuries Taiwan Masters | ASA | 39 | 2018 | 53 | - | 0.5 | - | 488th |
| The 34th Shinhan Donghae Open | ASA,KOR | 37 | 2018 | MC | - | 0.4783 | - | 478th |
| Taifong Open | ADT | 33 | 2018 | MC | - | 0.4348 | - | 457th |
| TAKE Solutions Masters | ASA | 32 | 2018 | MC | - | 0.4239 | - | 455th |
| Royal Cup | ASA | 30 | 2018 | T2 | 5.39 | 0.4022 | 2.17 | 446th |
| Bank BRI Indonesia Open | ASA | 28 | 2018 | T3 | 4.90 | 0.3804 | 1.86 | 547th |
| Sarawak Championship | ASA | 27 | 2018 | MC | - | 0.3696 | - | 731st |
| Queen's Cup presented by Bangchak | ASA | 26 | 2018 | MC | - | 0.3587 | - | 718th |
| Kolon Korea Open Golf Championship | ASA,KOR | 25 | 2018 | T45 | - | 0.3478 | - | 704th |
| Thailand Open | ASA | 23 | 2018 | 5 | 3.36 | 0.3261 | 1.1 | 688th |
| Betagro Championship | ADT | 21 | 2018 | T10 | - | 0.3043 | - | 792nd |
| Asia-Pacific Classic | ASA,CHN | 20 | 2018 | T10 | 1.35 | 0.2935 | 0.4 | 784th |
| AB Bank Bangladesh Open | ASA | 19 | 2018 | WD | - | 0.2826 | - | 847th |
| The 37th GS Caltex Maekyung Open Golf Championship | ASA,KOR | 18 | 2018 | MC | - | 0.2717 | - | 828th |
| Leopalace21 Myanmar Open | ASA,JPN | 4 | 2018 | 65 | - | 0.1196 | - | 718th |
| SMBC Singapore Open | ASA,JPN | 3 | 2018 | T16 | 2.24 | 0.1087 | 0.24 | 715th |
| Boonchu Ruangkit Championship | ADT | 51 | 2017 | T27 | - | 0.0652 | - | 805th |
| Indonesian Masters | ASA | 50 | 2017 | WD | - | 0.0543 | - | 805th |
| Thongchai Jaidee Foundation | ADT | 49 | 2017 | T17 | - | 0.0435 | - | 803rd |
| Casio World Open | JPN | 47 | 2017 | MC | - | 0.0217 | - | 799th |