| Personal Details | |
| Name | Alex Mason |
| Known As | Alex |
| Year of Birth | 1996 |
| Eligibility Category | Open/Male |
| Membership Details | |||
| Member Number | 312695 | ||
| Member Status | Current | ||
| Ranked Club | Stevenage SC | ||
| Country of International Representation | England | ||
| Membership Categories |
| SE Club Compete |
| Clubs & Organisations | |
| Club | Ranked |
| Team Luton Swimming | |
| Stevenage SC | Yes |
| Click For Personal Best | 2024 Short Course | Short Course PB | 2024 Long Course | Long Course PB |
| 50m Freestyle | . | 26.01 | . | 26.94 |
| 100m Freestyle | . | 54.95 | . | 56.26 |
| 200m Freestyle | . | 1:57.49 | . | 2:01.10 |
| 400m Freestyle | . | 4:12.11 | . | 4:17.37 |
| 800m Freestyle | . | 9:17.64 | . | . |
| 1500m Freestyle | . | 17:20.74 | . | 17:49.67 |
| 50m Breaststroke | . | 31.21 | . | 34.11 |
| 100m Breaststroke | . | 1:08.53 | . | 1:12.82 |
| 200m Breaststroke | . | 2:30.49 | . | 2:39.27 |
| 50m Butterfly | . | 28.03 | . | 28.77 |
| 100m Butterfly | . | 1:01.64 | . | 1:03.27 |
| 200m Butterfly | . | 2:18.07 | . | 2:22.34 |
| 50m Backstroke | . | 30.24 | . | 47.40 |
| 100m Backstroke | . | 1:03.23 | . | 1:34.41 |
| 200m Backstroke | . | 2:13.17 | . | 2:25.81 |
| 200m Individual Medley | . | 2:13.20 | . | 2:17.87 |
| 400m Individual Medley | . | 4:43.54 | . | 4:52.75 |
| 100m Individual Medley | . | 1:02.78 | . | . |
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