| Personal Details | |
| Name | Lukas Karlsson |
| Known As | Lukas |
| Year of Birth | 2009 |
| Eligibility Category | Open/Male |
| Membership Details | |||
| Member Number | 1488327 | ||
| Member Status | Current | ||
| Ranked Club | Colchester SC | ||
| Country of International Representation | England | ||
| Membership Categories |
| SE Club Compete |
| Clubs & Organisations | |
| Club | Ranked |
| Colchester SC | Yes |
| Click For Personal Best | 2024 Short Course | Short Course PB | 2024 Long Course | Long Course PB |
| 50m Freestyle | 30.50 | 30.50 | . | 43.36 |
| 100m Freestyle | 1:06.49 | 1:06.49 | . | . |
| 200m Freestyle | 2:24.62 | 2:24.62 | . | . |
| 400m Freestyle | 5:06.69 | 5:06.69 | . | . |
| 800m Freestyle | . | 11:00.99 | . | . |
| 1500m Freestyle | . | 20:43.13 | . | . |
| 50m Breaststroke | 40.47 | 39.99 | . | . |
| 100m Breaststroke | 1:28.74 | 1:27.31 | . | 2:11.24 |
| 200m Breaststroke | . | . | . | . |
| 50m Butterfly | 34.74 | 34.74 | . | 51.25 |
| 100m Butterfly | . | 1:23.64 | . | . |
| 200m Butterfly | . | . | . | . |
| 50m Backstroke | 36.61 | 36.61 | . | . |
| 100m Backstroke | 1:18.31 | 1:18.31 | . | . |
| 200m Backstroke | . | . | . | . |
| 200m Individual Medley | 2:46.19 | 2:46.19 | . | . |
| 400m Individual Medley | 5:57.16 | 5:54.63 | . | . |
| 100m Individual Medley | . | 1:28.36 | . | . |
 |   |
