Longhorne made his debut competitive Paralympic appearance at Tokyo 2020, but he actually holds a connection to a previous Games having carried the Olympic torch during the relay for London 2012.
After contracting Meningitis as a nine month old, septicaemia led to amputations of Lyndon's right leg above the knee, his left leg below the knee, his right hand and the fingertips on his left.
It was his grandfather who first introduced to him pool swimming at the age of one, and in 2011 at the age of fifteen, Lyndon was competing at his first national championships. The Derwentside SC swimmer - who holds eight British Para-Swimming long course records, secured his nomination for a first international appearance for Great Britain at the Tokyo 2020 Paralympics where he made the final of the S4 100m Freestyle.
| Event | Year | Time/Score | Record |
|---|---|---|---|
| S4 50m Freestyle | 2023 | 42.75 | BR |
| S4 100m Freestyle | 2023 | 1:33.23 | BR |
| S4 200m Freestyle | 2022 | 3:22.15 | BR |
| S4 50m Backstroke | 2021 | 50.12 | BR |
| SB3 50m Breaststroke | 2016 | 57.94 | BR |
| S4 50m Butterfly | 2022 | 49.73 | BR |
| SM4 150m Individual Medley | 2015 | 2:49.60 | BR |
| SM4 200m Individual Medley | 2014 | 4:01.10 | BR |
| Event | Year | Time/Score | Record |
|---|---|---|---|
| SM4 100m Individual Medley | 2011 | 1:58.01 | BR |
| SM4 150m Individual Medley | 2013 | 2:56.78 | BR |
| SM4 200m Individual Medley | 2015 | 3:49.52 | BR |
| Event | Year | Time/Score | Result |
|---|---|---|---|
| S4 50m Freestyle | 2021 - Tokyo | 45.78 | 16th |
| S4 100m Freestyle | 2021 - Tokyo | 1:33.30 | 7th |
| S4 200m Freestyle | 2021 - Tokyo | 3:25.07 | 9th |
| SB3 50m Breaststroke | 2021 - Tokyo | 58.79 | 12th |
| S6 50m Backstroke | 2021 - Tokyo | 50.12 | 11th |
| SM4 150m Individual Medley | 2021 - Tokyo | 2:52.76 | 12th |
| Mixed 4x50m Freestyle 20pts | 2021 - Tokyo | 2:48.34 | 8th |
| Event | Year | Time/Score | Result |
|---|---|---|---|
| S4 100m Freestyle | 2022 - Madeira | 1:37.11 | 7th |
| SM4 150m Individual Medley | 2022 - Madeira | 2.55.66 | 6th |
| S4 50m Freestyle | 2022 - Madeira | 45.06 | 10th |
| S4 200m Freestyle | 2022 - Madeira | 3:29.36 | 7th |
| Mixed 20pts 4x50m Freestyle Relay | 2022 - Madeira | 2:40.95 | 4th |
| Mixed 20pts 4x50m Medley Relay | 2022 - Madeira | 2:54.05 | 5th |
| Event | Year | Time/Score | Result |
|---|---|---|---|
| MC 150m Individual Medley | 2023 - Sheffield | 2:49.62 | Bronze |
| MC 150m Individual Medley | 2021 | 3:05.09 | Bronze |
| MC 50m Breaststroke | 2021 | 1:00.54 | Bronze |
| MC 50m Freestyle | 2021 | 45.26 | 13th |