Chapchai Nirat
BY YEAR
| Yeangder TPC | ASA | 40 | 2018 | T21 | - | 1 | - | 494th |
| Mercuries Taiwan Masters | ASA | 39 | 2018 | 53 | - | 1 | - | 488th |
| The 34th Shinhan Donghae Open | ASA,KOR | 37 | 2018 | MC | - | 1 | - | 478th |
| Taifong Open | ADT | 33 | 2018 | MC | - | 1 | - | 457th |
| TAKE Solutions Masters | ASA | 32 | 2018 | MC | - | 1 | - | 455th |
| Royal Cup | ASA | 30 | 2018 | T2 | 5.39 | 1 | 5.39 | 446th |
| Bank BRI Indonesia Open | ASA | 28 | 2018 | T3 | 4.90 | 0.9783 | 4.79 | 547th |
| Sarawak Championship | ASA | 27 | 2018 | MC | - | 0.9674 | - | 731st |
| Queen's Cup presented by Bangchak | ASA | 26 | 2018 | MC | - | 0.9565 | - | 718th |
| Kolon Korea Open Golf Championship | ASA,KOR | 25 | 2018 | T45 | - | 0.9457 | - | 704th |
| Thailand Open | ASA | 23 | 2018 | 5 | 3.36 | 0.9239 | 3.1 | 688th |
| Betagro Championship | ADT | 21 | 2018 | T10 | - | 0.9022 | - | 792nd |
| Asia-Pacific Classic | ASA,CHN | 20 | 2018 | T10 | 1.35 | 0.8913 | 1.2 | 784th |
| AB Bank Bangladesh Open | ASA | 19 | 2018 | WD | - | 0.8804 | - | 847th |
| The 37th GS Caltex Maekyung Open Golf Championship | ASA,KOR | 18 | 2018 | MC | - | 0.8696 | - | 828th |
| Leopalace21 Myanmar Open | ASA,JPN | 4 | 2018 | 65 | - | 0.7174 | - | 718th |
| SMBC Singapore Open | ASA,JPN | 3 | 2018 | T16 | 2.24 | 0.7065 | 1.58 | 715th |
| Boonchu Ruangkit Championship | ADT | 51 | 2017 | T27 | - | 0.663 | - | 805th |
| Indonesian Masters | ASA | 50 | 2017 | WD | - | 0.6522 | - | 805th |
| Thongchai Jaidee Foundation | ADT | 49 | 2017 | T17 | - | 0.6413 | - | 803rd |
| Casio World Open | JPN | 47 | 2017 | MC | - | 0.6196 | - | 799th |
| Resorts World Manila Masters | ASA | 45 | 2017 | T26 | - | 0.5978 | - | 780th |
| HEIWA PGM CHAMPIONSHIP | JPN | 44 | 2017 | WD | - | 0.587 | - | 766th |
| Mynavi ABC Championship | JPN | 43 | 2017 | T16 | 1.25 | 0.5761 | 0.72 | 744th |
| Bridgestone Open | JPN | 42 | 2017 | T57 | - | 0.5652 | - | 771st |
| Honma TourWorld Cup | JPN | 40 | 2017 | T29 | - | 0.5435 | - | 750th |
| TOP Cup Tokai Classic | JPN | 39 | 2017 | MC | - | 0.5326 | - | 738th |
| Asia-Pacific Diamond Cup Golf | ASA,JPN | 38 | 2017 | MC | - | 0.5217 | - | 721st |
| ANA Open | JPN | 37 | 2017 | MC | - | 0.5109 | - | 706th |
| ISPS Handa Match Play | JPN | 36 | 2017 | T33 | - | 0.5 | - | 693rd |
| Fujisankei Classic | JPN | 35 | 2017 | T50 | - | 0.4891 | - | 680th |
| RIZAP KBC Augusta | JPN | 34 | 2017 | MC | - | 0.4783 | - | 663rd |
| Dunlop SRIXON Fukushima Open | JPN | 30 | 2017 | T11 | 1.78 | 0.4348 | 0.77 | 619th |
| Shigeo Nagashima Invitational SEGA SAMMY Cup | JPN | 27 | 2017 | MC | - | 0.4022 | - | 636th |
| Betagro All Thailand Championship | ADT | 26 | 2017 | T38 | - | 0.3913 | - | 625th |
| Queen's Cup | ASA | 24 | 2017 | T25 | - | 0.3696 | - | 599th |
| Gate Way To The Open - Mizuno Open | JPN | 21 | 2017 | MC | - | 0.337 | - | 572nd |
| Kansai Open Golf Championship | JPN | 20 | 2017 | MC | - | 0.3261 | - | 568th |
| The Crowns | JPN | 17 | 2017 | T45 | - | 0.2935 | - | 533rd |
| Panasonic OPEN | ASA,JPN | 16 | 2017 | MC | - | 0.2826 | - | 515th |
| Token Homemate Cup | JPN | 15 | 2017 | MC | - | 0.2717 | - | 496th |
| Hero India Open | ASA,EUR | 10 | 2017 | MC | - | 0.2174 | - | 466th |
| Maybank Championship | ASA,EUR | 6 | 2017 | MC | - | 0.1739 | - | 455th |
| Leopalace21 Myanmar Open | ASA,JPN | 4 | 2017 | T63 | - | 0.1522 | - | 438th |
| SMBC Singapore Open | ASA,JPN | 3 | 2017 | MC | - | 0.1413 | - | 429th |
| Boonchu Ruangkit Championship | ADT | 52 | 2016 | T17 | - | 0.1087 | - | 420th |
| UBS Hong Kong Open | ASA,EUR | 50 | 2016 | MC | - | 0.087 | - | 419th |
| Thongchai Jaidee Foundation | ADT | 49 | 2016 | 1 | 7.00 | 0.0761 | 0.53 | 416th |
| Casio World Open | JPN | 48 | 2016 | MC | - | 0.0652 | - | 553rd |
| Dunlop Phoenix Tournament | JPN | 47 | 2016 | T45 | - | 0.0543 | - | 536th |
| Resorts World Manila Masters | ASA | 46 | 2016 | MC | - | 0.0435 | - | 523rd |
| Heiwa PGM Championship | JPN | 45 | 2016 | MC | - | 0.0326 | - | 510th |