| Personal Details | |
| Name | Lois Mason |
| Known As | Lois |
| Year of Birth | 2007 |
| Eligibility Category | Female |
| Membership Details | |||
| Member Number | 1340993 | ||
| Member Status | Current | ||
| Ranked Club | Rochford & District SC | ||
| Country of International Representation | England | ||
| Membership Categories |
| SE Club Compete |
| Clubs & Organisations | |
| Club | Ranked |
| Rochford & District SC | Yes |
| Click For Personal Best | 2024 Short Course | Short Course PB | 2024 Long Course | Long Course PB |
| 50m Freestyle | 30.82 | 30.47 | . | . |
| 100m Freestyle | 1:07.78 | 1:07.65 | . | . |
| 200m Freestyle | 2:29.13 | 2:29.13 | . | . |
| 400m Freestyle | . | . | . | . |
| 800m Freestyle | . | . | . | . |
| 1500m Freestyle | . | . | . | . |
| 50m Breaststroke | . | . | . | . |
| 100m Breaststroke | . | . | . | . |
| 200m Breaststroke | . | . | . | . |
| 50m Butterfly | . | 36.16 | . | . |
| 100m Butterfly | . | . | . | . |
| 200m Butterfly | . | . | . | . |
| 50m Backstroke | 35.75 | 35.75 | . | . |
| 100m Backstroke | . | 1:18.73 | . | . |
| 200m Backstroke | . | 3:07.37 | . | . |
| 200m Individual Medley | . | 3:05.70 | . | . |
| 400m Individual Medley | . | . | . | . |
| 100m Individual Medley | . | 1:23.26 | . | . |
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