| Personal Details | |
| Name | Rosie Barker-Mayer |
| Known As | Rosie |
| Year of Birth | 2008 |
| Eligibility Category | Female |
| Membership Details | |||
| Member Number | 1387802 | ||
| Member Status | Current | ||
| Ranked Club | Crewe Flyers SC | ||
| Country of International Representation | England | ||
| Membership Categories |
| SE Club Compete |
| Clubs & Organisations | |
| Club | Ranked |
| Crewe Flyers SC | Yes |
| Altrincham SC | |
| Halton SC | |
| Click For Personal Best | 2024 Short Course | Short Course PB | 2024 Long Course | Long Course PB |
| 50m Freestyle | 31.12 | 29.86 | 31.65 | 30.64 |
| 100m Freestyle | 1:06.04 | 1:04.11 | . | 1:06.60 |
| 200m Freestyle | 2:19.33 | 2:17.78 | . | 2:21.62 |
| 400m Freestyle | . | 4:58.82 | . | 5:04.16 |
| 800m Freestyle | . | 10:04.59 | . | 10:37.00 |
| 1500m Freestyle | . | 19:30.10 | . | . |
| 50m Breaststroke | . | 40.91 | . | 42.64 |
| 100m Breaststroke | 1:26.70 | 1:25.67 | . | 1:41.71 |
| 200m Breaststroke | 3:03.05 | 3:02.99 | . | 3:11.31 |
| 50m Butterfly | 34.29 | 33.26 | . | . |
| 100m Butterfly | . | 1:17.90 | . | 1:25.45 |
| 200m Butterfly | . | 2:54.11 | . | 3:00.32 |
| 50m Backstroke | 36.92 | 36.92 | . | . |
| 100m Backstroke | . | 1:14.81 | . | 1:26.75 |
| 200m Backstroke | . | 2:50.19 | . | 2:57.25 |
| 200m Individual Medley | . | 2:39.93 | . | 2:57.87 |
| 400m Individual Medley | . | 5:41.98 | . | 6:04.68 |
| 100m Individual Medley | 1:15.65 | 1:15.21 | . | . |
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