| | Year | Tournament | Position |
|
First Name:
|
Mason
|
|
Last Name:
|
Andersen
|
|
Hometown:
|
Chandler
|
|
St/Prov:
|
AZ
|
|
Country:
|
USA
|
|
Rank:
|
89
|
| 2020 | Western Amateur (IL, USA) | T39 |
| 2020 | San Diego Classic (CA, USA) | T28 |
| 2020 | Cabo Collegiate (MEX) | T7 |
| 2020 | Amer Ari Invitational (HI, USA) | 2nd |
| 2020 | Southwestern Invitational (CA, USA) | T18 |
| 2019 | Patriot All America (AZ, USA) | 7th |
| 2019 | Tavistock Collegiate (FL, USA) | T18 |
| 2019 | Fighting Irish Classic (IN, USA) | T2 |
| 2019 | US Amateur | T89 |
| 2019 | Pacific Coast Amateur | T22 |
| 2019 | US Amateur Qualifying (2 spots) | Medalist |
| 2019 | Sahalee Players (WA, USA) | T4 |
| 2019 | British Amateur | T65 |
| 2019 | Dogwood Invitational (GA, USA) | T8 |
| 2019 | PAC 12 (collegiate, USA) | T16 |
| 2019 | ASU Thunderbird Collegiate (AZ, USA) | T18 |
| 2019 | National Invitational (collegiate, AZ, USA) | T11 |
| 2019 | San Diego Classic (CA, USA) | Champion |
| 2019 | Cabo Collegiate (MEX) | T10 |
| 2019 | Arizona Intercollegiate (USA) | T16 |
| 2018 | Tavistock Collegiate (FL, USA) | T8 |