Ashley Chesters
BY YEAR
| Portugal Masters | EUR | 38 | 2018 | T16 | 1.98 | 1 | 1.98 | 348th |
| KLM Open | EUR | 37 | 2018 | T28 | - | 1 | - | 365th |
| Omega European Masters | EUR | 36 | 2018 | MC | - | 1 | - | 357th |
| Made In Denmark | EUR | 35 | 2018 | 9 | 3.60 | 1 | 3.6 | 355th |
| D+D Real Czech Masters | EUR | 34 | 2018 | T59 | - | 1 | - | 407th |
| Nordea Masters | EUR | 33 | 2018 | T29 | - | 1 | - | 403rd |
| Porsche European Open | EUR | 30 | 2018 | MC | - | 1 | - | 378th |
| Aberdeen Standard Investments Scottish Open | EUR | 28 | 2018 | MC | - | 1 | - | 369th |
| Dubai Duty Free Irish Open Hosted by the Rory Foundation | EUR | 27 | 2018 | T14 | 3.42 | 1 | 3.42 | 359th |
| HNA Open de France | EUR | 26 | 2018 | T21 | 2.76 | 1 | 2.76 | 412nd |
| BMW International Open | EUR | 25 | 2018 | T63 | - | 0.9891 | - | 443rd |
| Shot Clock Masters | EUR | 23 | 2018 | T7 | 3.65 | 0.9674 | 3.53 | 436th |
| Italian Open | EUR | 22 | 2018 | MC | - | 0.9565 | - | 487th |
| BMW PGA CHAMPIONSHIP | EUR | 21 | 2018 | MC | - | 0.9457 | - | 476th |
| Belgian Knockout | EUR | 20 | 2018 | MC | - | 0.9348 | - | 469th |
| Volvo China Open | ASA,EUR | 17 | 2018 | T20 | 1.98 | 0.9022 | 1.79 | 452nd |
| Trophee Hassan II | EUR | 16 | 2018 | MC | - | 0.8913 | - | 480th |
| Open de Espana | EUR | 15 | 2018 | MC | - | 0.8804 | - | 472nd |
| Hero Indian Open | ASA,EUR | 10 | 2018 | T30 | - | 0.8261 | - | 464th |
| Tshwane Open | AFR,EUR | 9 | 2018 | MC | - | 0.8152 | - | 460th |
| Commercial Bank Qatar Masters | EUR | 8 | 2018 | T45 | - | 0.8043 | - | 453rd |
| NBO Oman Open | EUR | 7 | 2018 | MC | - | 0.7935 | - | 448th |
| Omega Dubai Desert Classic | EUR | 4 | 2018 | T51 | - | 0.7609 | - | 427th |
| Abu Dhabi HSBC Championship presented by EGA | EUR | 3 | 2018 | MC | - | 0.75 | - | 411st |
| BMW SA Open hosted by the City of Ekurhuleni | AFR,EUR | 2 | 2018 | MC | - | 0.7391 | - | 403rd |
| Joburg Open | AFR,ASA,EUR | 49 | 2017 | MC | - | 0.6848 | - | 395th |
| AfrAsia Bank Mauritius Open | AFR,ASA,EUR | 48 | 2017 | T44 | - | 0.6739 | - | 386th |
| UBS Hong Kong Open | ASA,EUR | 47 | 2017 | T39 | 1.21 | 0.663 | 0.8 | 375th |
| Andalucia Valderrama Masters hosted by the Sergio Garcia Foundation | EUR | 42 | 2017 | T12 | 2.40 | 0.6087 | 1.46 | 373rd |
| Alfred Dunhill Links Championship | EUR | 40 | 2017 | T36 | 1.23 | 0.587 | 0.72 | 398th |
| British Masters supported by Sky Sports | EUR | 39 | 2017 | T52 | - | 0.5761 | - | 418th |
| Portugal Masters | EUR | 38 | 2017 | T52 | - | 0.5652 | - | 403rd |
| KLM Open | EUR | 37 | 2017 | T60 | - | 0.5543 | - | 388th |
| D+D REAL Czech Masters | EUR | 35 | 2017 | MC | - | 0.5326 | - | 375th |
| Made In Denmark | EUR | 34 | 2017 | T31 | - | 0.5217 | - | 359th |
| Saltire Energy Paul Lawrie Match Play | EUR | 33 | 2017 | T9 | 2.81 | 0.5109 | 1.44 | 348th |
| Galgorm Resort & Spa Northern Ireland Open presented by Modest! Golf | CHA | 32 | 2017 | T18 | - | 0.5 | - | 384th |
| Porsche European Open | EUR | 30 | 2017 | T8 | 3.48 | 0.4783 | 1.66 | 380th |
| Aberdeen Asset Management Scottish Open | EUR | 28 | 2017 | T43 | 1.58 | 0.4565 | 0.72 | 442nd |
| Dubai Duty Free Irish Open Hosted by the Rory Foundation | EUR | 27 | 2017 | T20 | 2.68 | 0.4457 | 1.19 | 471st |
| HNA Open de France | EUR | 26 | 2017 | MC | - | 0.4348 | - | 520th |
| BMW International Open | EUR | 25 | 2017 | T20 | 1.94 | 0.4239 | 0.82 | 516th |
| LYONESS OPEN powered by ORGANIC+ | EUR | 23 | 2017 | T28 | - | 0.4022 | - | 566th |
| Nordea Masters | EUR | 22 | 2017 | MC | - | 0.3913 | - | 560th |
| The Rocco Forte Open | EUR | 20 | 2017 | MC | - | 0.3696 | - | 541st |
| Open de Portugal at Morgado Golf Resort | CHA,EUR | 19 | 2017 | T18 | 1.32 | 0.3587 | 0.47 | 526th |
| Shenzhen International | EUR | 16 | 2017 | MC | - | 0.3261 | - | 543rd |
| Trophee Hassan II | EUR | 15 | 2017 | T8 | 3.36 | 0.3152 | 1.06 | 530th |
| Barclays Kenya Open | CHA | 12 | 2017 | MC | - | 0.2826 | - | 655th |
| Joburg Open | AFR,EUR | 8 | 2017 | T50 | - | 0.2391 | - | 628th |
| ISPS Handa World Super 6 Perth | ANZ,ASA,EUR | 7 | 2017 | MC | - | 0.2283 | - | 624th |
| BMW SA Open hosted by City of Ekurhuleni | AFR,EUR | 2 | 2017 | MC | - | 0.1739 | - | 586th |