Duncan Stewart
BY YEAR
| South African Open | AFR,EUR | 49 | 2018 | MC | - | 1 | - | 917th |
| Australian PGA Championship | ANZ,EUR | 48 | 2018 | MC | - | 1 | - | 910th |
| Andalucia Valderrama Masters hosted by the Sergio Garcia Foundation | EUR | 42 | 2018 | MC | - | 0.9891 | - | 859th |
| Monaghan Irish Challenge | CHA | 40 | 2018 | T38 | - | 0.9674 | - | 843rd |
| Hopps Open de Provence | CHA | 38 | 2018 | MC | - | 0.9457 | - | 832nd |
| Kazakhstan Open | CHA | 37 | 2018 | MC | - | 0.9348 | - | 817th |
| Bridgestone Challenge | CHA | 36 | 2018 | MC | - | 0.9239 | - | 815th |
| Cordon Golf Open | CHA | 35 | 2018 | MC | - | 0.913 | - | 797th |
| Galgorm Resort & Spa Northern Ireland Open, presented by Modest! Golf | CHA | 33 | 2018 | T16 | - | 0.8913 | - | 779th |
| Vierumäki Finnish Challenge | CHA | 32 | 2018 | MC | - | 0.8804 | - | 761st |
| Swedish Challenge hosted by Robert Karlsson | CHA | 31 | 2018 | MC | - | 0.8696 | - | 731st |
| Euram Bank Open | CHA | 30 | 2018 | T11 | 1.34 | 0.8587 | 1.15 | 719th |
| Le Vaudreuil Golf Challenge | CHA | 29 | 2018 | T8 | 1.56 | 0.8478 | 1.32 | 760th |
| Aberdeen Standard Investments Scottish Open | EUR | 28 | 2018 | T58 | - | 0.837 | - | 808th |
| SSE Scottish Hydro Challenge hosted by Macdonald Hotels & Resorts | CHA | 25 | 2018 | T14 | 1.20 | 0.8043 | 0.97 | 744th |
| Hauts de France Golf Open | CHA | 24 | 2018 | MC | - | 0.7935 | - | 772nd |
| Shot Clock Masters | EUR | 23 | 2018 | 57 | - | 0.7826 | - | 760th |
| Swiss Challenge presented by Association Suisse de Golf | CHA | 22 | 2018 | T33 | - | 0.7717 | - | 740th |
| Belgian Knockout | EUR | 20 | 2018 | T46 | - | 0.75 | - | 714th |
| Rocco Forte Sicilian Open | EUR | 19 | 2018 | MC | - | 0.7391 | - | 697th |
| Challenge de España | CHA | 18 | 2018 | MC | - | 0.7283 | - | 684th |
| Turkish Airlines Challenge | CHA | 17 | 2018 | T53 | - | 0.7174 | - | 665th |
| Belt & Road Colorful Yunnan Open | CHA,CHN | 15 | 2018 | T36 | - | 0.6957 | - | 641st |
| Barclays Kenya Open | CHA | 12 | 2018 | T38 | - | 0.663 | - | 619th |
| Tshwane Open | AFR,EUR | 9 | 2018 | MC | - | 0.6304 | - | 589th |
| ISPS Handa World Super 6 Perth | ANZ,ASA,EUR | 6 | 2018 | MC | - | 0.5978 | - | 564th |
| Joburg Open | AFR,ASA,EUR | 49 | 2017 | MC | - | 0.5 | - | 522nd |
| Australian PGA Championship | ANZ,EUR | 48 | 2017 | MC | - | 0.4891 | - | 469th |
| Andalucia Valderrama Masters hosted by the Sergio Garcia Foundation | EUR | 42 | 2017 | MC | - | 0.4239 | - | 429th |
| Alfred Dunhill Links Championship | EUR | 40 | 2017 | MC | - | 0.4022 | - | 418th |
| British Masters supported by Sky Sports | EUR | 39 | 2017 | T57 | - | 0.3913 | - | 410th |
| Portugal Masters | EUR | 38 | 2017 | MC | - | 0.3804 | - | 399th |
| KLM Open | EUR | 37 | 2017 | T20 | 1.48 | 0.3696 | 0.55 | 381st |
| Omega European Masters | ASA,EUR | 36 | 2017 | T9 | 3.86 | 0.3587 | 1.38 | 397th |
| D+D REAL Czech Masters | EUR | 35 | 2017 | MC | - | 0.3478 | - | 447th |
| Made In Denmark | EUR | 34 | 2017 | MC | - | 0.337 | - | 437th |
| Porsche European Open | EUR | 30 | 2017 | DQ | - | 0.2935 | - | 417th |
| Aberdeen Asset Management Scottish Open | EUR | 28 | 2017 | T55 | - | 0.2717 | - | 412nd |
| Dubai Duty Free Irish Open Hosted by the Rory Foundation | EUR | 27 | 2017 | T20 | 2.68 | 0.2609 | 0.7 | 397th |
| HNA Open de France | EUR | 26 | 2017 | MC | - | 0.25 | - | 427th |
| BMW International Open | EUR | 25 | 2017 | MC | - | 0.2391 | - | 416th |
| LYONESS OPEN powered by ORGANIC+ | EUR | 23 | 2017 | T34 | - | 0.2174 | - | 402nd |
| Nordea Masters | EUR | 22 | 2017 | MC | - | 0.2065 | - | 392nd |
| The Rocco Forte Open | EUR | 20 | 2017 | MC | - | 0.1848 | - | 375th |
| Open de Portugal at Morgado Golf Resort | CHA,EUR | 19 | 2017 | T68 | - | 0.1739 | - | 362nd |
| Shenzhen International | EUR | 16 | 2017 | T39 | - | 0.1413 | - | 356th |
| Trophee Hassan II | EUR | 15 | 2017 | T27 | 1.20 | 0.1304 | 0.16 | 355th |
| Hero India Open | ASA,EUR | 10 | 2017 | MC | - | 0.0761 | - | 362nd |
| Tshwane Open | AFR,EUR | 9 | 2017 | T18 | 1.39 | 0.0652 | 0.09 | 360th |
| Joburg Open | AFR,EUR | 8 | 2017 | T60 | - | 0.0543 | - | 378th |
| ISPS Handa World Super 6 Perth | ANZ,ASA,EUR | 7 | 2017 | T22 | 1.34 | 0.0435 | 0.06 | 373rd |
| Commercial Bank Qatar Masters | EUR | 4 | 2017 | MC | - | 0.0109 | - | 368th |